A class CouchBaseCluster not found

I have a problem with the sdk I have installed everything correctly yet in phpstorm I get the couchbase cluster not found please guide me into solving this issue.

Could you give more details about the issue? How did you install the extension, which version of PHP do you use, how it loads INI files? Also I’d recommend you to search this forum for “CouchbaseCluster not found”, and probably your question already has been answered.

I searched the forum . I could not find anything helpful.
I used the installation guide that the formal site gives I use ubuntu and php 7.1.
I have everything installed through pecl and in pecl list couchbase appears.
I also see in my phpinfo that the couchbase is enabled.Yet in phpstorm when I run my test the couchbase cluster not found class appears.

Could you post phpinfo() output when you running it from phpstorm? Are you sure it is using system PHP with its INI files?

phpinfo()

PHP Version => 7.0.22-0ubuntu0.16.04.1

System => Linux station-14-aio 4.4.0-96-generic #119-Ubuntu SMP Tue Sep 12 14:59:54 UTC 2017 x86_64
Server API => Command Line Interface
Virtual Directory Support => disabled
Configuration File (php.ini) Path => /etc/php/7.0/cli
Loaded Configuration File => /etc/php/7.0/cli/php.ini
Scan this dir for additional .ini files => /etc/php/7.0/cli/conf.d
Additional .ini files parsed => /etc/php/7.0/cli/conf.d/10-opcache.ini,
/etc/php/7.0/cli/conf.d/10-pdo.ini,
/etc/php/7.0/cli/conf.d/15-xml.ini,
/etc/php/7.0/cli/conf.d/20-calendar.ini,
/etc/php/7.0/cli/conf.d/20-ctype.ini,
/etc/php/7.0/cli/conf.d/20-dom.ini,
/etc/php/7.0/cli/conf.d/20-exif.ini,
/etc/php/7.0/cli/conf.d/20-fileinfo.ini,
/etc/php/7.0/cli/conf.d/20-ftp.ini,
/etc/php/7.0/cli/conf.d/20-gettext.ini,
/etc/php/7.0/cli/conf.d/20-iconv.ini,
/etc/php/7.0/cli/conf.d/20-json.ini,
/etc/php/7.0/cli/conf.d/20-mbstring.ini,
/etc/php/7.0/cli/conf.d/20-phar.ini,
/etc/php/7.0/cli/conf.d/20-posix.ini,
/etc/php/7.0/cli/conf.d/20-readline.ini,
/etc/php/7.0/cli/conf.d/20-shmop.ini,
/etc/php/7.0/cli/conf.d/20-simplexml.ini,
/etc/php/7.0/cli/conf.d/20-sockets.ini,
/etc/php/7.0/cli/conf.d/20-sysvmsg.ini,
/etc/php/7.0/cli/conf.d/20-sysvsem.ini,
/etc/php/7.0/cli/conf.d/20-sysvshm.ini,
/etc/php/7.0/cli/conf.d/20-tokenizer.ini,
/etc/php/7.0/cli/conf.d/20-wddx.ini,
/etc/php/7.0/cli/conf.d/20-xdebug.ini,
/etc/php/7.0/cli/conf.d/20-xmlreader.ini,
/etc/php/7.0/cli/conf.d/20-xmlwriter.ini,
/etc/php/7.0/cli/conf.d/20-xsl.ini

PHP API => 20151012
PHP Extension => 20151012
Zend Extension => 320151012
Zend Extension Build => API320151012,NTS
PHP Extension Build => API20151012,NTS
Debug Build => no
Thread Safety => disabled
Zend Signal Handling => disabled
Zend Memory Manager => enabled
Zend Multibyte Support => provided by mbstring
IPv6 Support => enabled
DTrace Support => available, disabled

Registered PHP Streams => https, ftps, compress.zlib, php, file, glob, data, http, ftp, phar
Registered Stream Socket Transports => tcp, udp, unix, udg, ssl, tls, tlsv1.0, tlsv1.1, tlsv1.2
Registered Stream Filters => zlib., string.rot13, string.toupper, string.tolower, string.strip_tags, convert., consumed, dechunk, convert.iconv.*

This program makes use of the Zend Scripting Language Engine:
Zend Engine v3.0.0, Copyright © 1998-2017 Zend Technologies
with Zend OPcache v7.0.22-0ubuntu0.16.04.1, Copyright © 1999-2017, by Zend Technologies
with Xdebug v2.5.5, Copyright © 2002-2017, by Derick Rethans


Configuration

calendar

Calendar support => enabled

Core

PHP Version => 7.0.22-0ubuntu0.16.04.1

Directive => Local Value => Master Value
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auto_append_file => no value => no value
auto_globals_jit => On => On
auto_prepend_file => no value => no value
browscap => no value => no value
default_charset => UTF-8 => UTF-8
default_mimetype => text/html => text/html
disable_classes => no value => no value
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display_errors => Off => Off
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doc_root => no value => no value
docref_ext => no value => no value
docref_root => no value => no value
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error_append_string => no value => no value
error_log => no value => no value
error_prepend_string => no value => no value
error_reporting => 22527 => 22527
exit_on_timeout => Off => Off
expose_php => On => On
extension_dir => /usr/lib/php/20151012 => /usr/lib/php/20151012
file_uploads => On => On
highlight.comment => #FF8000 => #FF8000
highlight.default => #0000BB => #0000BB
highlight.html => #000000 => #000000
highlight.keyword => #007700 => #007700
highlight.string => #DD0000 => #DD0000
html_errors => Off => Off
ignore_repeated_errors => Off => Off
ignore_repeated_source => Off => Off
ignore_user_abort => Off => Off
implicit_flush => On => On
include_path => .:/usr/share/php => .:/usr/share/php
input_encoding => no value => no value
internal_encoding => no value => no value
log_errors => On => On
log_errors_max_len => 1024 => 1024
mail.add_x_header => On => On
mail.force_extra_parameters => no value => no value
mail.log => no value => no value
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max_file_uploads => 20 => 20
max_input_nesting_level => 64 => 64
max_input_time => -1 => -1
max_input_vars => 1000 => 1000
memory_limit => -1 => -1
open_basedir => no value => no value
output_buffering => 0 => 0
output_encoding => no value => no value
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post_max_size => 8M => 8M
precision => 14 => 14
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request_order => GP => GP
sendmail_from => no value => no value
sendmail_path => /usr/sbin/sendmail -t -i => /usr/sbin/sendmail -t -i
serialize_precision => 17 => 17
short_open_tag => Off => Off
SMTP => localhost => localhost
smtp_port => 25 => 25
sql.safe_mode => Off => Off
sys_temp_dir => no value => no value
track_errors => Off => Off
unserialize_callback_func => no value => no value
upload_max_filesize => 2M => 2M
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user_dir => no value => no value
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zend.assertions => -1 => -1
zend.detect_unicode => On => On
zend.enable_gc => On => On
zend.multibyte => Off => Off
zend.script_encoding => no value => no value

ctype

ctype functions => enabled

date

date/time support => enabled
"Olson" Timezone Database Version => 0.system
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dom

DOM/XML => enabled
DOM/XML API Version => 20031129
libxml Version => 2.9.3
HTML Support => enabled
XPath Support => enabled
XPointer Support => enabled
Schema Support => enabled
RelaxNG Support => enabled

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EXIF Version => 1.4 $Id: 8bdc0c8f27c2c9dd1f7551f1f9fe3ab57a06a4b1 $
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exif.decode_jis_motorola => JIS => JIS
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fileinfo

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version => 1.0.5
libmagic => 522

filter

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Revision => $Id: 28fcca4bfda9c9907588a64d245b49cb398249d8 $

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ftp

FTP support => enabled
FTPS support => enabled

gettext

GetText Support => enabled

hash

hash support => enabled
Hashing Engines => md2 md4 md5 sha1 sha224 sha256 sha384 sha512 ripemd128 ripemd160 ripemd256 ripemd320 whirlpool tiger128,3 tiger160,3 tiger192,3 tiger128,4 tiger160,4 tiger192,4 snefru snefru256 gost gost-crypto adler32 crc32 crc32b fnv132 fnv1a32 fnv164 fnv1a64 joaat haval128,3 haval160,3 haval192,3 haval224,3 haval256,3 haval128,4 haval160,4 haval192,4 haval224,4 haval256,4 haval128,5 haval160,5 haval192,5 haval224,5 haval256,5

MHASH support => Enabled
MHASH API Version => Emulated Support

iconv

iconv support => enabled
iconv implementation => glibc
iconv library version => 2.23

Directive => Local Value => Master Value
iconv.input_encoding => no value => no value
iconv.internal_encoding => no value => no value
iconv.output_encoding => no value => no value

json

json support => enabled
json version => 1.4.0

libxml

libXML support => active
libXML Compiled Version => 2.9.3
libXML Loaded Version => 20904
libXML streams => enabled

mbstring

Multibyte Support => enabled
Multibyte string engine => libmbfl
HTTP input encoding translation => disabled
libmbfl version => 1.3.2
oniguruma version => 5.9.6

mbstring extension makes use of “streamable kanji code filter and converter”, which is distributed under the GNU Lesser General Public License version 2.1.

Multibyte (japanese) regex support => enabled
Multibyte regex (oniguruma) backtrack check => On
Multibyte regex (oniguruma) version => 5.9.6

Directive => Local Value => Master Value
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mbstring.encoding_translation => Off => Off
mbstring.func_overload => 0 => 0
mbstring.http_input => no value => no value
mbstring.http_output => no value => no value
mbstring.http_output_conv_mimetypes => ^(text/|application/xhtml+xml) => ^(text/|application/xhtml+xml)
mbstring.internal_encoding => no value => no value
mbstring.language => neutral => neutral
mbstring.strict_detection => Off => Off
mbstring.substitute_character => no value => no value

openssl

OpenSSL support => enabled
OpenSSL Library Version => OpenSSL 1.0.2g 1 Mar 2016
OpenSSL Header Version => OpenSSL 1.0.2g 1 Mar 2016
Openssl default config => /usr/lib/ssl/openssl.cnf

Directive => Local Value => Master Value
openssl.cafile => no value => no value
openssl.capath => no value => no value

pcntl

pcntl support => enabled

pcre

PCRE (Perl Compatible Regular Expressions) Support => enabled
PCRE Library Version => 8.40 2017-01-11
PCRE JIT Support => enabled

Directive => Local Value => Master Value
pcre.backtrack_limit => 1000000 => 1000000
pcre.jit => 1 => 1
pcre.recursion_limit => 100000 => 100000

PDO

PDO support => enabled
PDO drivers =>

Phar

Phar: PHP Archive support => enabled
Phar EXT version => 2.0.2
Phar API version => 1.1.1
SVN revision => $Id: 9d91fd26ae99260111b934cc25174387d4bd7059 $
Phar-based phar archives => enabled
Tar-based phar archives => enabled
ZIP-based phar archives => enabled
gzip compression => enabled
bzip2 compression => disabled (install pecl/bz2)
Native OpenSSL support => enabled

Phar based on pear/PHP_Archive, original concept by Davey Shafik.
Phar fully realized by Gregory Beaver and Marcus Boerger.
Portions of tar implementation Copyright © 2003-2009 Tim Kientzle.
Directive => Local Value => Master Value
phar.cache_list => no value => no value
phar.readonly => On => On
phar.require_hash => On => On

posix

Revision => $Id: b691ca925e7a085e6929579c4eba8fed0732e0ef $

readline

Readline Support => enabled
Readline library => EditLine wrapper

Directive => Local Value => Master Value
cli.pager => no value => no value
cli.prompt => \b > => \b >

Reflection

Reflection => enabled
Version => $Id: 5b162f759ed700573e0cb3095c8f89a70970748a $

session

Session Support => enabled
Registered save handlers => files user
Registered serializer handlers => php_serialize php php_binary wddx

Directive => Local Value => Master Value
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session.cache_expire => 180 => 180
session.cache_limiter => nocache => nocache
session.cookie_domain => no value => no value
session.cookie_httponly => Off => Off
session.cookie_lifetime => 0 => 0
session.cookie_path => / => /
session.cookie_secure => Off => Off
session.entropy_file => /dev/urandom => /dev/urandom
session.entropy_length => 32 => 32
session.gc_divisor => 1000 => 1000
session.gc_maxlifetime => 1440 => 1440
session.gc_probability => 0 => 0
session.hash_bits_per_character => 5 => 5
session.hash_function => 0 => 0
session.lazy_write => On => On
session.name => PHPSESSID => PHPSESSID
session.referer_check => no value => no value
session.save_handler => files => files
session.save_path => /var/lib/php/sessions => /var/lib/php/sessions
session.serialize_handler => php => php
session.upload_progress.cleanup => On => On
session.upload_progress.enabled => On => On
session.upload_progress.freq => 1% => 1%
session.upload_progress.min_freq => 1 => 1
session.upload_progress.name => PHP_SESSION_UPLOAD_PROGRESS => PHP_SESSION_UPLOAD_PROGRESS
session.upload_progress.prefix => upload_progress_ => upload_progress_
session.use_cookies => On => On
session.use_only_cookies => On => On
session.use_strict_mode => Off => Off
session.use_trans_sid => 0 => 0

shmop

shmop support => enabled

SimpleXML

Simplexml support => enabled
Revision => $Id: b8b5c37931a53e50a937c0aef2a26d351e173215 $
Schema support => enabled

sockets

Sockets Support => enabled

SPL

SPL support => enabled
Interfaces => Countable, OuterIterator, RecursiveIterator, SeekableIterator, SplObserver, SplSubject
Classes => AppendIterator, ArrayIterator, ArrayObject, BadFunctionCallException, BadMethodCallException, CachingIterator, CallbackFilterIterator, DirectoryIterator, DomainException, EmptyIterator, FilesystemIterator, FilterIterator, GlobIterator, InfiniteIterator, InvalidArgumentException, IteratorIterator, LengthException, LimitIterator, LogicException, MultipleIterator, NoRewindIterator, OutOfBoundsException, OutOfRangeException, OverflowException, ParentIterator, RangeException, RecursiveArrayIterator, RecursiveCachingIterator, RecursiveCallbackFilterIterator, RecursiveDirectoryIterator, RecursiveFilterIterator, RecursiveIteratorIterator, RecursiveRegexIterator, RecursiveTreeIterator, RegexIterator, RuntimeException, SplDoublyLinkedList, SplFileInfo, SplFileObject, SplFixedArray, SplHeap, SplMinHeap, SplMaxHeap, SplObjectStorage, SplPriorityQueue, SplQueue, SplStack, SplTempFileObject, UnderflowException, UnexpectedValueException

standard

Dynamic Library Support => enabled
Path to sendmail => /usr/sbin/sendmail -t -i

Directive => Local Value => Master Value
assert.active => 1 => 1
assert.bail => 0 => 0
assert.callback => no value => no value
assert.exception => 0 => 0
assert.quiet_eval => 0 => 0
assert.warning => 1 => 1
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default_socket_timeout => 60 => 60
from => no value => no value
url_rewriter.tags => a=href,area=href,frame=src,input=src,form=fakeentry => a=href,area=href,frame=src,input=src,form=fakeentry
user_agent => no value => no value

sysvmsg

sysvmsg support => enabled
Revision => $Id: dfb999763f95bfe9609fae60b4e07a492888ec7c $

sysvsem

Version => 7.0.22-0ubuntu0.16.04.1

sysvshm

Version => 7.0.22-0ubuntu0.16.04.1

tokenizer

Tokenizer Support => enabled

wddx

WDDX Support => enabled
WDDX Session Serializer => enabled

xdebug

xdebug support => enabled
Version => 2.5.5
IDE Key => root

Supported protocols => Revision
DBGp - Common DeBuGger Protocol => $Revision: 1.145 $

Directive => Local Value => Master Value
xdebug.auto_trace => Off => Off
xdebug.cli_color => 0 => 0
xdebug.collect_assignments => Off => Off
xdebug.collect_includes => On => On
xdebug.collect_params => 0 => 0
xdebug.collect_return => Off => Off
xdebug.collect_vars => Off => Off
xdebug.coverage_enable => On => On
xdebug.default_enable => On => On
xdebug.dump.COOKIE => no value => no value
xdebug.dump.ENV => no value => no value
xdebug.dump.FILES => no value => no value
xdebug.dump.GET => no value => no value
xdebug.dump.POST => no value => no value
xdebug.dump.REQUEST => no value => no value
xdebug.dump.SERVER => no value => no value
xdebug.dump.SESSION => no value => no value
xdebug.dump_globals => On => On
xdebug.dump_once => On => On
xdebug.dump_undefined => Off => Off
xdebug.extended_info => On => On
xdebug.file_link_format => no value => no value
xdebug.force_display_errors => Off => Off
xdebug.force_error_reporting => 0 => 0
xdebug.halt_level => 0 => 0
xdebug.idekey => no value => no value
xdebug.max_nesting_level => 256 => 256
xdebug.max_stack_frames => -1 => -1
xdebug.overload_var_dump => 2 => 2
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xdebug.profiler_append => Off => Off
xdebug.profiler_enable => Off => Off
xdebug.profiler_enable_trigger => Off => Off
xdebug.profiler_enable_trigger_value => no value => no value
xdebug.profiler_output_dir => /tmp => /tmp
xdebug.profiler_output_name => cachegrind.out.%p => cachegrind.out.%p
xdebug.remote_addr_header => no value => no value
xdebug.remote_autostart => Off => Off
xdebug.remote_connect_back => Off => Off
xdebug.remote_cookie_expire_time => 3600 => 3600
xdebug.remote_enable => Off => Off
xdebug.remote_handler => dbgp => dbgp
xdebug.remote_host => localhost => localhost
xdebug.remote_log => no value => no value
xdebug.remote_mode => req => req
xdebug.remote_port => 9000 => 9000
xdebug.scream => Off => Off
xdebug.show_error_trace => Off => Off
xdebug.show_exception_trace => Off => Off
xdebug.show_local_vars => Off => Off
xdebug.show_mem_delta => Off => Off
xdebug.trace_enable_trigger => Off => Off
xdebug.trace_enable_trigger_value => no value => no value
xdebug.trace_format => 0 => 0
xdebug.trace_options => 0 => 0
xdebug.trace_output_dir => /tmp => /tmp
xdebug.trace_output_name => trace.%c => trace.%c
xdebug.var_display_max_children => 128 => 128
xdebug.var_display_max_data => 512 => 512
xdebug.var_display_max_depth => 3 => 3

xml

XML Support => active
XML Namespace Support => active
libxml2 Version => 2.9.3

xmlreader

XMLReader => enabled

xmlwriter

XMLWriter => enabled

xsl

XSL => enabled
libxslt Version => 1.1.28
libxslt compiled against libxml Version => 2.9.3
EXSLT => enabled
libexslt Version => 1.1.28

Zend OPcache

Opcode Caching => Disabled
Optimization => Disabled
SHM Cache => Enabled
File Cache => Disabled
Startup Failed => Opcode Caching is disabled for CLI

Directive => Local Value => Master Value
opcache.blacklist_filename => no value => no value
opcache.consistency_checks => 0 => 0
opcache.dups_fix => Off => Off
opcache.enable => On => On
opcache.enable_cli => Off => Off
opcache.enable_file_override => Off => Off
opcache.error_log => no value => no value
opcache.fast_shutdown => 0 => 0
opcache.file_cache => no value => no value
opcache.file_cache_consistency_checks => 1 => 1
opcache.file_cache_only => 0 => 0
opcache.file_update_protection => 2 => 2
opcache.force_restart_timeout => 180 => 180
opcache.huge_code_pages => Off => Off
opcache.inherited_hack => On => On
opcache.interned_strings_buffer => 4 => 4
opcache.lockfile_path => /tmp => /tmp
opcache.log_verbosity_level => 1 => 1
opcache.max_accelerated_files => 2000 => 2000
opcache.max_file_size => 0 => 0
opcache.max_wasted_percentage => 5 => 5
opcache.memory_consumption => 64 => 64
opcache.optimization_level => 0x7FFFBFFF => 0x7FFFBFFF
opcache.preferred_memory_model => no value => no value
opcache.protect_memory => 0 => 0
opcache.restrict_api => no value => no value
opcache.revalidate_freq => 2 => 2
opcache.revalidate_path => Off => Off
opcache.save_comments => 1 => 1
opcache.use_cwd => On => On
opcache.validate_permission => Off => Off
opcache.validate_root => Off => Off
opcache.validate_timestamps => On => On

zlib

ZLib Support => enabled
Stream Wrapper => compress.zlib://
Stream Filter => zlib.inflate, zlib.deflate
Compiled Version => 1.2.8
Linked Version => 1.2.8

Directive => Local Value => Master Value
zlib.output_compression => Off => Off
zlib.output_compression_level => -1 => -1
zlib.output_handler => no value => no value

Additional Modules

Module Name

Environment

Variable => Value
LC_PAPER => el_GR.UTF-8
LC_ADDRESS => el_GR.UTF-8
LC_MONETARY => el_GR.UTF-8
SHELL => /bin/bash
TERM => xterm-256color
LC_NUMERIC => el_GR.UTF-8
LC_ALL => en_US.UTF-8
USER => root
LC_TELEPHONE => el_GR.UTF-8
LS_COLORS => rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:.tar=01;31:.tgz=01;31:.arc=01;31:.arj=01;31:.taz=01;31:.lha=01;31:.lz4=01;31:.lzh=01;31:.lzma=01;31:.tlz=01;31:.txz=01;31:.tzo=01;31:.t7z=01;31:.zip=01;31:.z=01;31:.Z=01;31:.dz=01;31:.gz=01;31:.lrz=01;31:.lz=01;31:.lzo=01;31:.xz=01;31:.bz2=01;31:.bz=01;31:.tbz=01;31:.tbz2=01;31:.tz=01;31:.deb=01;31:.rpm=01;31:.jar=01;31:.war=01;31:.ear=01;31:.sar=01;31:.rar=01;31:.alz=01;31:.ace=01;31:.zoo=01;31:.cpio=01;31:.7z=01;31:.rz=01;31:.cab=01;31:.jpg=01;35:.jpeg=01;35:.gif=01;35:.bmp=01;35:.pbm=01;35:.pgm=01;35:.ppm=01;35:.tga=01;35:.xbm=01;35:.xpm=01;35:.tif=01;35:.tiff=01;35:.png=01;35:.svg=01;35:.svgz=01;35:.mng=01;35:.pcx=01;35:.mov=01;35:.mpg=01;35:.mpeg=01;35:.m2v=01;35:.mkv=01;35:.webm=01;35:.ogm=01;35:.mp4=01;35:.m4v=01;35:.mp4v=01;35:.vob=01;35:.qt=01;35:.nuv=01;35:.wmv=01;35:.asf=01;35:.rm=01;35:.rmvb=01;35:.flc=01;35:.avi=01;35:.fli=01;35:.flv=01;35:.gl=01;35:.dl=01;35:.xcf=01;35:.xwd=01;35:.yuv=01;35:.cgm=01;35:.emf=01;35:.ogv=01;35:.ogx=01;35:.aac=00;36:.au=00;36:.flac=00;36:.m4a=00;36:.mid=00;36:.midi=00;36:.mka=00;36:.mp3=00;36:.mpc=00;36:.ogg=00;36:.ra=00;36:.wav=00;36:.oga=00;36:.opus=00;36:.spx=00;36:.xspf=00;36:
SUDO_USER => user
SUDO_UID => 1000
USERNAME => root
MAIL => /var/mail/root
PATH => /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
LC_IDENTIFICATION => el_GR.UTF-8
PWD => /home/user
LANG => en_US.UTF-8
LC_MEASUREMENT => el_GR.UTF-8
SHLVL => 1
SUDO_COMMAND => /bin/su
HOME => /root
LANGUAGE => en_US:en
LOGNAME => root
LESSOPEN => | /usr/bin/lesspipe %s
SUDO_GID => 1000
LESSCLOSE => /usr/bin/lesspipe %s %s
LC_TIME => el_GR.UTF-8
LC_NAME => el_GR.UTF-8
_ => /usr/bin/php

PHP Variables

Variable => Value
$_SERVER[‘LC_PAPER’] => el_GR.UTF-8
$_SERVER[‘LC_ADDRESS’] => el_GR.UTF-8
$_SERVER[‘LC_MONETARY’] => el_GR.UTF-8
$_SERVER[‘SHELL’] => /bin/bash
$_SERVER[‘TERM’] => xterm-256color
$_SERVER[‘LC_NUMERIC’] => el_GR.UTF-8
$_SERVER[‘LC_ALL’] => en_US.UTF-8
$_SERVER[‘USER’] => root
$_SERVER[‘LC_TELEPHONE’] => el_GR.UTF-8
$_SERVER[‘LS_COLORS’] => rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:.tar=01;31:.tgz=01;31:.arc=01;31:.arj=01;31:.taz=01;31:.lha=01;31:.lz4=01;31:.lzh=01;31:.lzma=01;31:.tlz=01;31:.txz=01;31:.tzo=01;31:.t7z=01;31:.zip=01;31:.z=01;31:.Z=01;31:.dz=01;31:.gz=01;31:.lrz=01;31:.lz=01;31:.lzo=01;31:.xz=01;31:.bz2=01;31:.bz=01;31:.tbz=01;31:.tbz2=01;31:.tz=01;31:.deb=01;31:.rpm=01;31:.jar=01;31:.war=01;31:.ear=01;31:.sar=01;31:.rar=01;31:.alz=01;31:.ace=01;31:.zoo=01;31:.cpio=01;31:.7z=01;31:.rz=01;31:.cab=01;31:.jpg=01;35:.jpeg=01;35:.gif=01;35:.bmp=01;35:.pbm=01;35:.pgm=01;35:.ppm=01;35:.tga=01;35:.xbm=01;35:.xpm=01;35:.tif=01;35:.tiff=01;35:.png=01;35:.svg=01;35:.svgz=01;35:.mng=01;35:.pcx=01;35:.mov=01;35:.mpg=01;35:.mpeg=01;35:.m2v=01;35:.mkv=01;35:.webm=01;35:.ogm=01;35:.mp4=01;35:.m4v=01;35:.mp4v=01;35:.vob=01;35:.qt=01;35:.nuv=01;35:.wmv=01;35:.asf=01;35:.rm=01;35:.rmvb=01;35:.flc=01;35:.avi=01;35:.fli=01;35:.flv=01;35:.gl=01;35:.dl=01;35:.xcf=01;35:.xwd=01;35:.yuv=01;35:.cgm=01;35:.emf=01;35:.ogv=01;35:.ogx=01;35:.aac=00;36:.au=00;36:.flac=00;36:.m4a=00;36:.mid=00;36:.midi=00;36:.mka=00;36:.mp3=00;36:.mpc=00;36:.ogg=00;36:.ra=00;36:.wav=00;36:.oga=00;36:.opus=00;36:.spx=00;36:.xspf=00;36:
$_SERVER[‘SUDO_USER’] => user
$_SERVER[‘SUDO_UID’] => 1000
$_SERVER[‘USERNAME’] => root
$_SERVER[‘MAIL’] => /var/mail/root
$_SERVER[‘PATH’] => /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
$_SERVER[‘LC_IDENTIFICATION’] => el_GR.UTF-8
$_SERVER[‘PWD’] => /home/user
$_SERVER[‘LANG’] => en_US.UTF-8
$_SERVER[‘LC_MEASUREMENT’] => el_GR.UTF-8
$_SERVER[‘SHLVL’] => 1
$_SERVER[‘SUDO_COMMAND’] => /bin/su
$_SERVER[‘HOME’] => /root
$_SERVER[‘LANGUAGE’] => en_US:en
$_SERVER[‘LOGNAME’] => root
$_SERVER[‘LESSOPEN’] => | /usr/bin/lesspipe %s
$_SERVER[‘SUDO_GID’] => 1000
$_SERVER[‘LESSCLOSE’] => /usr/bin/lesspipe %s %s
$_SERVER[‘LC_TIME’] => el_GR.UTF-8
$_SERVER[‘LC_NAME’] => el_GR.UTF-8
$SERVER[’’] => /usr/bin/php
$_SERVER[‘PHP_SELF’] =>
$_SERVER[‘SCRIPT_NAME’] =>
$_SERVER[‘SCRIPT_FILENAME’] =>
$_SERVER[‘PATH_TRANSLATED’] =>
$_SERVER[‘DOCUMENT_ROOT’] =>
$_SERVER[‘REQUEST_TIME_FLOAT’] => 1507636914.1455
$_SERVER[‘REQUEST_TIME’] => 1507636914
$_SERVER[‘argv’] => Array
(
)

$_SERVER[‘argc’] => 0

PHP License
This program is free software; you can redistribute it and/or modify
it under the terms of the PHP License as published by the PHP Group
and included in the distribution in the file: LICENSE

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

If you did not receive a copy of the PHP license, or have any
questions about PHP licensing, please contact license@php.net.

I could not post it but the following are only loaded while it should also load 25-couchbase.ini
Configuration File (php.ini) Path => /etc/php/7.0/cli
Loaded Configuration File => /etc/php/7.0/cli/php.ini
Scan this dir for additional .ini files => /etc/php/7.0/cli/conf.d
Additional .ini files parsed => /etc/php/7.0/cli/conf.d/10-opcache.ini,
/etc/php/7.0/cli/conf.d/10-pdo.ini,
/etc/php/7.0/cli/conf.d/15-xml.ini,
/etc/php/7.0/cli/conf.d/20-calendar.ini,
/etc/php/7.0/cli/conf.d/20-ctype.ini,
/etc/php/7.0/cli/conf.d/20-dom.ini,
/etc/php/7.0/cli/conf.d/20-exif.ini,
/etc/php/7.0/cli/conf.d/20-fileinfo.ini,
/etc/php/7.0/cli/conf.d/20-ftp.ini,
/etc/php/7.0/cli/conf.d/20-gettext.ini,
/etc/php/7.0/cli/conf.d/20-iconv.ini,
/etc/php/7.0/cli/conf.d/20-json.ini,
/etc/php/7.0/cli/conf.d/20-mbstring.ini,
/etc/php/7.0/cli/conf.d/20-phar.ini,
/etc/php/7.0/cli/conf.d/20-posix.ini,
/etc/php/7.0/cli/conf.d/20-readline.ini,
/etc/php/7.0/cli/conf.d/20-shmop.ini,
/etc/php/7.0/cli/conf.d/20-simplexml.ini,
/etc/php/7.0/cli/conf.d/20-sockets.ini,
/etc/php/7.0/cli/conf.d/20-sysvmsg.ini,
/etc/php/7.0/cli/conf.d/20-sysvsem.ini,
/etc/php/7.0/cli/conf.d/20-sysvshm.ini,
/etc/php/7.0/cli/conf.d/20-tokenizer.ini,
/etc/php/7.0/cli/conf.d/20-wddx.ini,
/etc/php/7.0/cli/conf.d/20-xdebug.ini,
/etc/php/7.0/cli/conf.d/20-xmlreader.ini,
/etc/php/7.0/cli/conf.d/20-xmlwriter.ini,
/etc/php/7.0/cli/conf.d/20-xsl.ini

I don’t see where in this list couchbase extension loaded? Did you create separate file for it in /etc/php/7.0/cli/conf.d/? or just added it into /etc/php/7.0/cli/php.ini? Note that our extension depends on JSON extension, and should be loaded after it, so the INI file index have to be greater than 20-, like /etc/php/7.0/cli/conf.d/30-couchbase.ini with content (I commented optional settings just to show their default values)

; Enable couchbase extension module
extension=couchbase.so

; Configuration
;couchbase.log_level = 'WARN'
;couchbase.encoder.format = 'json'
;couchbase.encoder.compression = 'off'
;couchbase.encoder.compression_threshold = 0
;couchbase.encoder.compression_factor = 0.0
;couchbase.decoder.json_arrays = 0
;couchbase.pool.max_idle_time_sec = 60

Getting same error can load couchbase in phpinfo file?

Fatal error: Uncaught Error: Class 'Couchbase\PasswordAuthenticator' not found in /var/www/html/couch.php on line  8
( ! ) Error: Class 'Couchbase\PasswordAuthenticator' not found in /var/www/html/couch.php on line  8

php,ini

PHP Version 7.3.3-1+ubuntu14.04.1+deb.sury.org+1
System	Linux ASAN-COMP-004 4.4.0-142-generic #168~14.04.1-Ubuntu SMP Sat Jan 19 11:26:28 UTC 2019 x86_64
Build Date	Mar 7 2019 20:39:32
Server API	Apache 2.0 Handler
Virtual Directory Support	disabled
Configuration File (php.ini) Path	/etc/php/7.3/apache2
Loaded Configuration File	/etc/php/7.3/apache2/php.ini
Scan this dir for additional .ini files	/etc/php/7.3/apache2/conf.d
Additional .ini files parsed	/etc/php/7.3/apache2/conf.d/10-mysqlnd.ini, /etc/php/7.3/apache2/conf.d/10-opcache.ini, /etc/php/7.3/apache2/conf.d/10-pdo.ini, /etc/php/7.3/apache2/conf.d/15-xml.ini, /etc/php/7.3/apache2/conf.d/20-calendar.ini, /etc/php/7.3/apache2/conf.d/20-couchbase.ini, /etc/php/7.3/apache2/conf.d/20-ctype.ini, /etc/php/7.3/apache2/conf.d/20-curl.ini, /etc/php/7.3/apache2/conf.d/20-dom.ini, /etc/php/7.3/apache2/conf.d/20-exif.ini, /etc/php/7.3/apache2/conf.d/20-fileinfo.ini, /etc/php/7.3/apache2/conf.d/20-ftp.ini, /etc/php/7.3/apache2/conf.d/20-gettext.ini, /etc/php/7.3/apache2/conf.d/20-iconv.ini, /etc/php/7.3/apache2/conf.d/20-intl.ini, /etc/php/7.3/apache2/conf.d/20-json.ini, /etc/php/7.3/apache2/conf.d/20-mbstring.ini, /etc/php/7.3/apache2/conf.d/20-mongodb.ini, /etc/php/7.3/apache2/conf.d/20-mysqli.ini, /etc/php/7.3/apache2/conf.d/20-pdo_mysql.ini, /etc/php/7.3/apache2/conf.d/20-phar.ini, /etc/php/7.3/apache2/conf.d/20-posix.ini, /etc/php/7.3/apache2/conf.d/20-readline.ini, /etc/php/7.3/apache2/conf.d/20-shmop.ini, /etc/php/7.3/apache2/conf.d/20-simplexml.ini, /etc/php/7.3/apache2/conf.d/20-sockets.ini, /etc/php/7.3/apache2/conf.d/20-sysvmsg.ini, /etc/php/7.3/apache2/conf.d/20-sysvsem.ini, /etc/php/7.3/apache2/conf.d/20-sysvshm.ini, /etc/php/7.3/apache2/conf.d/20-tokenizer.ini, /etc/php/7.3/apache2/conf.d/20-wddx.ini, /etc/php/7.3/apache2/conf.d/20-xdebug.ini, /etc/php/7.3/apache2/conf.d/20-xmlreader.ini, /etc/php/7.3/apache2/conf.d/20-xmlwriter.ini, /etc/php/7.3/apache2/conf.d/20-xsl.ini
PHP API	20180731
PHP Extension	20180731
Zend Extension	320180731
Zend Extension Build	API320180731,NTS
PHP Extension Build	API20180731,NTS
Debug Build	no
Thread Safety	disabled
Zend Signal Handling	enabled
Zend Memory Manager	enabled
Zend Multibyte Support	provided by mbstring
IPv6 Support	enabled
DTrace Support	available, disabled
Registered PHP Streams	https, ftps, compress.zlib, php, file, glob, data, http, ftp, phar
Registered Stream Socket Transports	tcp, udp, unix, udg, ssl, tls, tlsv1.0, tlsv1.1, tlsv1.2
Registered Stream Filters	zlib.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk, convert.iconv.*
Zend logo This program makes use of the Zend Scripting Language Engine:
Zend Engine v3.3.3, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.3.3-1+ubuntu14.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies
    with Xdebug v2.7.0, Copyright (c) 2002-2019, by Derick Rethans
Configuration
apache2handler
Apache Version	Apache/2.4.7 (Ubuntu)
Apache API Version	20120211
Server Administrator	webmaster@localhost
Hostname:Port	localhost:80
User/Group	www-data(33)/33
Max Requests	Per Child: 0 - Keep Alive: on - Max Per Connection: 100
Timeouts	Connection: 300 - Keep-Alive: 5
Virtual Server	Yes
Server Root	/etc/apache2
Loaded Modules	core mod_so mod_watchdog http_core mod_log_config mod_logio mod_version mod_unixd mod_access_compat mod_alias mod_auth_basic mod_authn_core mod_authn_file mod_authz_core mod_authz_host mod_authz_user mod_autoindex mod_deflate mod_dir mod_env mod_filter mod_mime prefork mod_negotiation mod_php7 mod_rewrite mod_setenvif mod_status
Directive	Local Value	Master Value
engine	1	1
last_modified	0	0
xbithack	0	0
Apache Environment
Variable	Value
HTTP_HOST	localhost
HTTP_CONNECTION	keep-alive
HTTP_PRAGMA	no-cache
HTTP_CACHE_CONTROL	no-cache
HTTP_UPGRADE_INSECURE_REQUESTS	1
HTTP_USER_AGENT	Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36
HTTP_ACCEPT	text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3
HTTP_ACCEPT_ENCODING	gzip, deflate, br
HTTP_ACCEPT_LANGUAGE	en-GB,en-US;q=0.9,en;q=0.8
HTTP_COOKIE	ui-auth-localhost%3A8091=43f304be9ef506af413f7fa21c6f8b19
PATH	/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
SERVER_SIGNATURE	<address>Apache/2.4.7 (Ubuntu) Server at localhost Port 80</address>
SERVER_SOFTWARE	Apache/2.4.7 (Ubuntu)
SERVER_NAME	localhost
SERVER_ADDR	::1
SERVER_PORT	80
REMOTE_ADDR	::1
DOCUMENT_ROOT	/var/www/html
REQUEST_SCHEME	http
CONTEXT_PREFIX	no value
CONTEXT_DOCUMENT_ROOT	/var/www/html
SERVER_ADMIN	webmaster@localhost
SCRIPT_FILENAME	/var/www/html/phpinfo.php
REMOTE_PORT	34858
GATEWAY_INTERFACE	CGI/1.1
SERVER_PROTOCOL	HTTP/1.1
REQUEST_METHOD	GET
QUERY_STRING	no value
REQUEST_URI	/phpinfo.php
SCRIPT_NAME	/phpinfo.php
HTTP Headers Information
HTTP Request Headers
HTTP Request	GET /phpinfo.php HTTP/1.1
Host	localhost
Connection	keep-alive
Pragma	no-cache
Cache-Control	no-cache
Upgrade-Insecure-Requests	1
User-Agent	Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36
Accept	text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3
Accept-Encoding	gzip, deflate, br
Accept-Language	en-GB,en-US;q=0.9,en;q=0.8
Cookie	ui-auth-localhost%3A8091=43f304be9ef506af413f7fa21c6f8b19
HTTP Response Headers
calendar
Calendar support	enabled
Core
PHP Version	7.3.3-1+ubuntu14.04.1+deb.sury.org+1
Directive	Local Value	Master Value
allow_url_fopen	On	On
allow_url_include	Off	Off
arg_separator.input	&	&
arg_separator.output	&	&
auto_append_file	no value	no value
auto_globals_jit	On	On
auto_prepend_file	no value	no value
browscap	no value	no value
default_charset	UTF-8	UTF-8
default_mimetype	text/html	text/html
disable_classes	no value	no value
disable_functions	pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,	pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,
display_errors	On	On
display_startup_errors	Off	Off
doc_root	no value	no value
docref_ext	no value	no value
docref_root	no value	no value
enable_dl	On	On
enable_post_data_reading	On	On
error_append_string	no value	no value
error_log	no value	no value
error_prepend_string	no value	no value
error_reporting	no value	no value
expose_php	Off	Off
extension_dir	/usr/lib/php/20180731	/usr/lib/php/20180731
file_uploads	On	On
hard_timeout	2	2
highlight.comment	#FF8000	#FF8000
highlight.default	#0000BB	#0000BB
highlight.html	#000000	#000000
highlight.keyword	#007700	#007700
highlight.string	#DD0000	#DD0000
html_errors	On	On
ignore_repeated_errors	Off	Off
ignore_repeated_source	Off	Off
ignore_user_abort	Off	Off
implicit_flush	Off	Off
include_path	.:/usr/share/php	.:/usr/share/php
input_encoding	no value	no value
internal_encoding	no value	no value
log_errors	Off	Off
log_errors_max_len	1024	1024
mail.add_x_header	Off	Off
mail.force_extra_parameters	no value	no value
mail.log	no value	no value
max_execution_time	300	300
max_file_uploads	20	20
max_input_nesting_level	64	64
max_input_time	600	600
max_input_vars	1000	1000
memory_limit	500M	500M
open_basedir	no value	no value
output_buffering	4096	4096
output_encoding	no value	no value
output_handler	no value	no value
post_max_size	8M	8M
precision	14	14
realpath_cache_size	4096K	4096K
realpath_cache_ttl	120	120
register_argc_argv	On	On
report_memleaks	On	On
report_zend_debug	On	On
request_order	no value	no value
sendmail_from	no value	no value
sendmail_path	/usr/sbin/sendmail -t -i 	/usr/sbin/sendmail -t -i 
serialize_precision	-1	-1
short_open_tag	Off	Off
SMTP	localhost	localhost
smtp_port	25	25
sys_temp_dir	no value	no value
syslog.facility	LOG_USER	LOG_USER
syslog.filter	no-ctrl	no-ctrl
syslog.ident	php	php
track_errors	Off	Off
unserialize_callback_func	no value	no value
upload_max_filesize	2M	2M
upload_tmp_dir	no value	no value
user_dir	no value	no value
user_ini.cache_ttl	300	300
user_ini.filename	.user.ini	.user.ini
variables_order	EGPCS	EGPCS
xmlrpc_error_number	0	0
xmlrpc_errors	Off	Off
zend.assertions	1	1
zend.detect_unicode	On	On
zend.enable_gc	On	On
zend.multibyte	Off	Off
zend.script_encoding	no value	no value
zend.signal_check	Off	Off
ctype
ctype functions	enabled
date
date/time support	enabled
timelib version	2018.01RC3
"Olson" Timezone Database Version	0.system
Timezone Database	internal
Default timezone	Asia/Calcutta
Directive	Local Value	Master Value
date.default_latitude	31.7667	31.7667
date.default_longitude	35.2333	35.2333
date.sunrise_zenith	90.583333	90.583333
date.sunset_zenith	90.583333	90.583333
date.timezone	no value	no value
dom
DOM/XML	enabled
DOM/XML API Version	20031129
libxml Version	2.9.1
HTML Support	enabled
XPath Support	enabled
XPointer Support	enabled
Schema Support	enabled
RelaxNG Support	enabled
exif
EXIF Support	enabled
Supported EXIF Version	0220
Supported filetypes	JPEG, TIFF
Multibyte decoding support using mbstring	enabled
Extended EXIF tag formats	Canon, Casio, Fujifilm, Nikon, Olympus, Samsung, Panasonic, DJI, Sony, Pentax, Minolta, Sigma, Foveon, Kyocera, Ricoh, AGFA, Epson
Directive	Local Value	Master Value
exif.decode_jis_intel	JIS	JIS
exif.decode_jis_motorola	JIS	JIS
exif.decode_unicode_intel	UCS-2LE	UCS-2LE
exif.decode_unicode_motorola	UCS-2BE	UCS-2BE
exif.encode_jis	no value	no value
exif.encode_unicode	ISO-8859-15	ISO-8859-15
filter
Input Validation and Filtering	enabled
Directive	Local Value	Master Value
filter.default	unsafe_raw	unsafe_raw
filter.default_flags	no value	no value
ftp
FTP support	enabled
FTPS support	enabled
gettext
GetText Support	enabled
hash
hash support	enabled
Hashing Engines	md2 md4 md5 sha1 sha224 sha256 sha384 sha512/224 sha512/256 sha512 sha3-224 sha3-256 sha3-384 sha3-512 ripemd128 ripemd160 ripemd256 ripemd320 whirlpool tiger128,3 tiger160,3 tiger192,3 tiger128,4 tiger160,4 tiger192,4 snefru snefru256 gost gost-crypto adler32 crc32 crc32b fnv132 fnv1a32 fnv164 fnv1a64 joaat haval128,3 haval160,3 haval192,3 haval224,3 haval256,3 haval128,4 haval160,4 haval192,4 haval224,4 haval256,4 haval128,5 haval160,5 haval192,5 haval224,5 haval256,5
MHASH support	Enabled
MHASH API Version	Emulated Support
iconv
iconv support	enabled
iconv implementation	glibc
iconv library version	2.19
Directive	Local Value	Master Value
iconv.input_encoding	no value	no value
iconv.internal_encoding	no value	no value
iconv.output_encoding	no value	no value
intl
Internationalization support	enabled
ICU version	52.1
ICU Data version	52.1
ICU TZData version	2013g
ICU Unicode version	6.3
Directive	Local Value	Master Value
intl.default_locale	no value	no value
intl.error_level	0	0
intl.use_exceptions	0	0
json
json support	enabled
json version	1.7.0
libxml
libXML support	active
libXML Compiled Version	2.9.1
libXML Loaded Version	20901
libXML streams	enabled
mbstring
Multibyte Support	enabled
Multibyte string engine	libmbfl
HTTP input encoding translation	disabled
libmbfl version	1.3.2
oniguruma version	6.9.0
mbstring extension makes use of "streamable kanji code filter and converter", which is distributed under the GNU Lesser General Public License version 2.1.
Multibyte (japanese) regex support	enabled
Multibyte regex (oniguruma) backtrack check	On
Multibyte regex (oniguruma) version	6.9.0
Directive	Local Value	Master Value
mbstring.detect_order	no value	no value
mbstring.encoding_translation	Off	Off
mbstring.func_overload	0	0
mbstring.http_input	no value	no value
mbstring.http_output	no value	no value
mbstring.http_output_conv_mimetypes	^(text/|application/xhtml\+xml)	^(text/|application/xhtml\+xml)
mbstring.internal_encoding	no value	no value
mbstring.language	neutral	neutral
mbstring.strict_detection	Off	Off
mbstring.substitute_character	no value	no value
mongodb
MongoDB support	enabled
MongoDB extension version	1.5.3
MongoDB extension stability	stable
libbson bundled version	1.13.0
libmongoc bundled version	1.13.0
libmongoc SSL	enabled
libmongoc SSL library	OpenSSL
libmongoc crypto	enabled
libmongoc crypto library	libcrypto
libmongoc crypto system profile	disabled
libmongoc SASL	enabled
libmongoc ICU	disabled
libmongoc compression	enabled
libmongoc compression snappy	disabled
libmongoc compression zlib	enabled
Directive	Local Value	Master Value
mongodb.debug	no value	no value
mysqli
MysqlI Support	enabled
Client API library version	mysqlnd 5.0.12-dev - 20150407 - $Id: 7cc7cc96e675f6d72e5cf0f267f48e167c2abb23 $
Active Persistent Links	0
Inactive Persistent Links	0
Active Links	0
Directive	Local Value	Master Value
mysqli.allow_local_infile	Off	Off
mysqli.allow_persistent	On	On
mysqli.default_host	no value	no value
mysqli.default_port	3306	3306
mysqli.default_pw	no value	no value
mysqli.default_socket	no value	no value
mysqli.default_user	no value	no value
mysqli.max_links	Unlimited	Unlimited
mysqli.max_persistent	Unlimited	Unlimited
mysqli.reconnect	Off	Off
mysqli.rollback_on_cached_plink	Off	Off
mysqlnd
mysqlnd	enabled
Version	mysqlnd 5.0.12-dev - 20150407 - $Id: 7cc7cc96e675f6d72e5cf0f267f48e167c2abb23 $
Compression	supported
core SSL	supported
extended SSL	supported
Command buffer size	4096
Read buffer size	32768
Read timeout	86400
Collecting statistics	Yes
Collecting memory statistics	No
Tracing	n/a
Loaded plugins	mysqlnd,debug_trace,auth_plugin_mysql_native_password,auth_plugin_mysql_clear_password,auth_plugin_sha256_password
API Extensions	mysqli,pdo_mysql
mysqlnd statistics	
bytes_sent	0
bytes_received	0
packets_sent	0
packets_received	0
protocol_overhead_in	0
protocol_overhead_out	0
bytes_received_ok_packet	0
bytes_received_eof_packet	0
bytes_received_rset_header_packet	0
bytes_received_rset_field_meta_packet	0
bytes_received_rset_row_packet	0
bytes_received_prepare_response_packet	0
bytes_received_change_user_packet	0
packets_sent_command	0
packets_received_ok	0
packets_received_eof	0
packets_received_rset_header	0
packets_received_rset_field_meta	0
packets_received_rset_row	0
packets_received_prepare_response	0
packets_received_change_user	0
result_set_queries	0
non_result_set_queries	0
no_index_used	0
bad_index_used	0
slow_queries	0
buffered_sets	0
unbuffered_sets	0
ps_buffered_sets	0
ps_unbuffered_sets	0
flushed_normal_sets	0
flushed_ps_sets	0
ps_prepared_never_executed	0
ps_prepared_once_executed	0
rows_fetched_from_server_normal	0
rows_fetched_from_server_ps	0
rows_buffered_from_client_normal	0
rows_buffered_from_client_ps	0
rows_fetched_from_client_normal_buffered	0
rows_fetched_from_client_normal_unbuffered	0
rows_fetched_from_client_ps_buffered	0
rows_fetched_from_client_ps_unbuffered	0
rows_fetched_from_client_ps_cursor	0
rows_affected_normal	0
rows_affected_ps	0
rows_skipped_normal	0
rows_skipped_ps	0
copy_on_write_saved	0
copy_on_write_performed	0
command_buffer_too_small	0
connect_success	0
connect_failure	0
connection_reused	0
reconnect	0
pconnect_success	0
active_connections	0
active_persistent_connections	0
explicit_close	0
implicit_close	0
disconnect_close	0
in_middle_of_command_close	0
explicit_free_result	0
implicit_free_result	0
explicit_stmt_close	0
implicit_stmt_close	0
mem_emalloc_count	0
mem_emalloc_amount	0
mem_ecalloc_count	0
mem_ecalloc_amount	0
mem_erealloc_count	0
mem_erealloc_amount	0
mem_efree_count	0
mem_efree_amount	0
mem_malloc_count	0
mem_malloc_amount	0
mem_calloc_count	0
mem_calloc_amount	0
mem_realloc_count	0
mem_realloc_amount	0
mem_free_count	0
mem_free_amount	0
mem_estrndup_count	0
mem_strndup_count	0
mem_estrdup_count	0
mem_strdup_count	0
mem_edupl_count	0
mem_dupl_count	0
proto_text_fetched_null	0
proto_text_fetched_bit	0
proto_text_fetched_tinyint	0
proto_text_fetched_short	0
proto_text_fetched_int24	0
proto_text_fetched_int	0
proto_text_fetched_bigint	0
proto_text_fetched_decimal	0
proto_text_fetched_float	0
proto_text_fetched_double	0
proto_text_fetched_date	0
proto_text_fetched_year	0
proto_text_fetched_time	0
proto_text_fetched_datetime	0
proto_text_fetched_timestamp	0
proto_text_fetched_string	0
proto_text_fetched_blob	0
proto_text_fetched_enum	0
proto_text_fetched_set	0
proto_text_fetched_geometry	0
proto_text_fetched_other	0
proto_binary_fetched_null	0
proto_binary_fetched_bit	0
proto_binary_fetched_tinyint	0
proto_binary_fetched_short	0
proto_binary_fetched_int24	0
proto_binary_fetched_int	0
proto_binary_fetched_bigint	0
proto_binary_fetched_decimal	0
proto_binary_fetched_float	0
proto_binary_fetched_double	0
proto_binary_fetched_date	0
proto_binary_fetched_year	0
proto_binary_fetched_time	0
proto_binary_fetched_datetime	0
proto_binary_fetched_timestamp	0
proto_binary_fetched_string	0
proto_binary_fetched_json	0
proto_binary_fetched_blob	0
proto_binary_fetched_enum	0
proto_binary_fetched_set	0
proto_binary_fetched_geometry	0
proto_binary_fetched_other	0
init_command_executed_count	0
init_command_failed_count	0
com_quit	0
com_init_db	0
com_query	0
com_field_list	0
com_create_db	0
com_drop_db	0
com_refresh	0
com_shutdown	0
com_statistics	0
com_process_info	0
com_connect	0
com_process_kill	0
com_debug	0
com_ping	0
com_time	0
com_delayed_insert	0
com_change_user	0
com_binlog_dump	0
com_table_dump	0
com_connect_out	0
com_register_slave	0
com_stmt_prepare	0
com_stmt_execute	0
com_stmt_send_long_data	0
com_stmt_close	0
com_stmt_reset	0
com_stmt_set_option	0
com_stmt_fetch	0
com_deamon	0
bytes_received_real_data_normal	0
bytes_received_real_data_ps	0
openssl
OpenSSL support	enabled
OpenSSL Library Version	OpenSSL 1.1.1b 26 Feb 2019
OpenSSL Header Version	OpenSSL 1.1.1b 26 Feb 2019
Openssl default config	/usr/lib/ssl/openssl.cnf
Directive	Local Value	Master Value
openssl.cafile	no value	no value
openssl.capath	no value	no value
pcre
PCRE (Perl Compatible Regular Expressions) Support	enabled
PCRE Library Version	10.31 2018-02-12
PCRE Unicode Version	10.0.0
PCRE JIT Support	enabled
PCRE JIT Target	x86 64bit (little endian + unaligned)
Directive	Local Value	Master Value
pcre.backtrack_limit	1000000	1000000
pcre.jit	1	1
pcre.recursion_limit	100000	100000
PDO
PDO support	enabled
PDO drivers	mysql
pdo_mysql
PDO Driver for MySQL	enabled
Client API version	mysqlnd 5.0.12-dev - 20150407 - $Id: 7cc7cc96e675f6d72e5cf0f267f48e167c2abb23 $
Directive	Local Value	Master Value
pdo_mysql.default_socket	/var/run/mysqld/mysqld.sock	/var/run/mysqld/mysqld.sock
Phar
Phar: PHP Archive support	enabled
Phar API version	1.1.1
Phar-based phar archives	enabled
Tar-based phar archives	enabled
ZIP-based phar archives	enabled
gzip compression	enabled
bzip2 compression	disabled (install ext/bz2)
Native OpenSSL support	enabled
Phar based on pear/PHP_Archive, original concept by Davey Shafik.
Phar fully realized by Gregory Beaver and Marcus Boerger.
Portions of tar implementation Copyright (c) 2003-2009 Tim Kientzle.
Directive	Local Value	Master Value
phar.cache_list	no value	no value
phar.readonly	On	On
phar.require_hash	On	On
posix
POSIX support	enabled
readline
Readline Support	enabled
Readline library	EditLine wrapper
Directive	Local Value	Master Value
cli.pager	no value	no value
cli.prompt	\b \> 	\b \> 
Reflection
Reflection	enabled
session
Session Support	enabled
Registered save handlers	files user
Registered serializer handlers	php_serialize php php_binary wddx
Directive	Local Value	Master Value
session.auto_start	Off	Off
session.cache_expire	180	180
session.cache_limiter	nocache	nocache
session.cookie_domain	no value	no value
session.cookie_httponly	0	0
session.cookie_lifetime	0	0
session.cookie_path	/	/
session.cookie_samesite	no value	no value
session.cookie_secure	0	0
session.gc_divisor	100	100
session.gc_maxlifetime	1440	1440
session.gc_probability	1	1
session.lazy_write	On	On
session.name	PHPSESSID	PHPSESSID
session.referer_check	no value	no value
session.save_handler	files	files
session.save_path	/var/lib/php/sessions	/var/lib/php/sessions
session.serialize_handler	php	php
session.sid_bits_per_character	4	4
session.sid_length	32	32
session.upload_progress.cleanup	On	On
session.upload_progress.enabled	On	On
session.upload_progress.freq	1%	1%
session.upload_progress.min_freq	1	1
session.upload_progress.name	PHP_SESSION_UPLOAD_PROGRESS	PHP_SESSION_UPLOAD_PROGRESS
session.upload_progress.prefix	upload_progress_	upload_progress_
session.use_cookies	1	1
session.use_only_cookies	1	1
session.use_strict_mode	0	0
session.use_trans_sid	0	0
shmop
shmop support	enabled
SimpleXML
SimpleXML support	enabled
Schema support	enabled
sockets
Sockets Support	enabled
sodium
sodium support	enabled
libsodium headers version	1.0.17
libsodium library version	1.0.17
SPL
SPL support	enabled
Interfaces	OuterIterator, RecursiveIterator, SeekableIterator, SplObserver, SplSubject
Classes	AppendIterator, ArrayIterator, ArrayObject, BadFunctionCallException, BadMethodCallException, CachingIterator, CallbackFilterIterator, DirectoryIterator, DomainException, EmptyIterator, FilesystemIterator, FilterIterator, GlobIterator, InfiniteIterator, InvalidArgumentException, IteratorIterator, LengthException, LimitIterator, LogicException, MultipleIterator, NoRewindIterator, OutOfBoundsException, OutOfRangeException, OverflowException, ParentIterator, RangeException, RecursiveArrayIterator, RecursiveCachingIterator, RecursiveCallbackFilterIterator, RecursiveDirectoryIterator, RecursiveFilterIterator, RecursiveIteratorIterator, RecursiveRegexIterator, RecursiveTreeIterator, RegexIterator, RuntimeException, SplDoublyLinkedList, SplFileInfo, SplFileObject, SplFixedArray, SplHeap, SplMinHeap, SplMaxHeap, SplObjectStorage, SplPriorityQueue, SplQueue, SplStack, SplTempFileObject, UnderflowException, UnexpectedValueException
standard
Dynamic Library Support	enabled
Path to sendmail	/usr/sbin/sendmail -t -i
Directive	Local Value	Master Value
assert.active	1	1
assert.bail	0	0
assert.callback	no value	no value
assert.exception	0	0
assert.quiet_eval	0	0
assert.warning	1	1
auto_detect_line_endings	0	0
default_socket_timeout	60	60
from	no value	no value
session.trans_sid_hosts	no value	no value
session.trans_sid_tags	a=href,area=href,frame=src,form=	a=href,area=href,frame=src,form=
url_rewriter.hosts	no value	no value
url_rewriter.tags	form=	form=
user_agent	no value	no value
sysvmsg
sysvmsg support	enabled
sysvsem
sysvsem support	enabled
sysvshm
sysvshm support	enabled
tokenizer
Tokenizer Support	enabled
wddx
WDDX Support	enabled
WDDX Session Serializer	enabled
xdebug
xdebug support	enabled
Version	2.7.0
IDE Key	no value
Support Xdebug on Patreon
BECOME A PATRON
Supported protocols
DBGp - Common DeBuGger Protocol
Directive	Local Value	Master Value
xdebug.auto_trace	Off	Off
xdebug.cli_color	0	0
xdebug.collect_assignments	Off	Off
xdebug.collect_includes	On	On
xdebug.collect_params	0	0
xdebug.collect_return	Off	Off
xdebug.collect_vars	Off	Off
xdebug.coverage_enable	On	On
xdebug.default_enable	On	On
xdebug.dump.COOKIE	no value	no value
xdebug.dump.ENV	no value	no value
xdebug.dump.FILES	no value	no value
xdebug.dump.GET	no value	no value
xdebug.dump.POST	no value	no value
xdebug.dump.REQUEST	no value	no value
xdebug.dump.SERVER	no value	no value
xdebug.dump.SESSION	no value	no value
xdebug.dump_globals	On	On
xdebug.dump_once	On	On
xdebug.dump_undefined	Off	Off
xdebug.extended_info	On	On
xdebug.file_link_format	no value	no value
xdebug.filename_format	no value	no value
xdebug.force_display_errors	Off	Off
xdebug.force_error_reporting	0	0
xdebug.gc_stats_enable	Off	Off
xdebug.gc_stats_output_dir	/tmp	/tmp
xdebug.gc_stats_output_name	gcstats.%p	gcstats.%p
xdebug.halt_level	0	0
xdebug.idekey	no value	no value
xdebug.max_nesting_level	256	256
xdebug.max_stack_frames	-1	-1
xdebug.overload_var_dump	2	2
xdebug.profiler_aggregate	Off	Off
xdebug.profiler_append	Off	Off
xdebug.profiler_enable	Off	Off
xdebug.profiler_enable_trigger	Off	Off
xdebug.profiler_enable_trigger_value	no value	no value
xdebug.profiler_output_dir	/tmp	/tmp
xdebug.profiler_output_name	cachegrind.out.%p	cachegrind.out.%p
xdebug.remote_addr_header	no value	no value
xdebug.remote_autostart	Off	Off
xdebug.remote_connect_back	Off	Off
xdebug.remote_cookie_expire_time	3600	3600
xdebug.remote_enable	Off	Off
xdebug.remote_handler	dbgp	dbgp
xdebug.remote_host	localhost	localhost
xdebug.remote_log	no value	no value
xdebug.remote_mode	req	req
xdebug.remote_port	9000	9000
xdebug.remote_timeout	200	200
xdebug.scream	Off	Off
xdebug.show_error_trace	Off	Off
xdebug.show_exception_trace	Off	Off
xdebug.show_local_vars	Off	Off
xdebug.show_mem_delta	Off	Off
xdebug.trace_enable_trigger	Off	Off
xdebug.trace_enable_trigger_value	no value	no value
xdebug.trace_format	0	0
xdebug.trace_options	0	0
xdebug.trace_output_dir	/tmp	/tmp
xdebug.trace_output_name	trace.%c	trace.%c
xdebug.var_display_max_children	128	128
xdebug.var_display_max_data	512	512
xdebug.var_display_max_depth	3	3
xml
XML Support	active
XML Namespace Support	active
libxml2 Version	2.9.1
xmlreader
XMLReader	enabled
xmlwriter
XMLWriter	enabled
xsl
XSL	enabled
libxslt Version	1.1.28
libxslt compiled against libxml Version	2.9.1
EXSLT	enabled
libexslt Version	1.1.28
Zend OPcache
Opcode Caching	Up and Running
Optimization	Enabled
SHM Cache	Enabled
File Cache	Disabled
Startup	OK
Shared memory model	mmap
Cache hits	0
Cache misses	17
Used memory	9442104
Free memory	124775624
Wasted memory	0
Interned Strings Used memory	465552
Interned Strings Free memory	5825480
Cached scripts	16
Cached keys	24
Max keys	16229
OOM restarts	0
Hash keys restarts	0
Manual restarts	0
Directive	Local Value	Master Value
opcache.blacklist_filename	no value	no value
opcache.consistency_checks	0	0
opcache.dups_fix	Off	Off
opcache.enable	On	On
opcache.enable_cli	Off	Off
opcache.enable_file_override	Off	Off
opcache.error_log	no value	no value
opcache.file_cache	no value	no value
opcache.file_cache_consistency_checks	1	1
opcache.file_cache_only	0	0
opcache.file_update_protection	2	2
opcache.force_restart_timeout	180	180
opcache.huge_code_pages	Off	Off
opcache.interned_strings_buffer	8	8
opcache.lockfile_path	/tmp	/tmp
opcache.log_verbosity_level	1	1
opcache.max_accelerated_files	10000	10000
opcache.max_file_size	0	0
opcache.max_wasted_percentage	5	5
opcache.memory_consumption	128	128
opcache.opt_debug_level	0	0
opcache.optimization_level	0x7FFEBFFF	0x7FFEBFFF
opcache.preferred_memory_model	no value	no value
opcache.protect_memory	0	0
opcache.restrict_api	no value	no value
opcache.revalidate_freq	2	2
opcache.revalidate_path	Off	Off
opcache.save_comments	1	1
opcache.use_cwd	On	On
opcache.validate_permission	Off	Off
opcache.validate_root	Off	Off
opcache.validate_timestamps	On	On
zlib
ZLib Support	enabled
Stream Wrapper	compress.zlib://
Stream Filter	zlib.inflate, zlib.deflate
Compiled Version	1.2.8
Linked Version	1.2.8
Directive	Local Value	Master Value
zlib.output_compression	Off	Off
zlib.output_compression_level	-1	-1
zlib.output_handler	no value	no value
Additional Modules
Module Name
Environment
Variable	Value
APACHE_RUN_DIR	/var/run/apache2
APACHE_PID_FILE	/var/run/apache2/apache2.pid
PATH	/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
APACHE_LOCK_DIR	/var/lock/apache2
LANG	C
APACHE_RUN_USER	www-data
APACHE_RUN_GROUP	www-data
APACHE_LOG_DIR	/var/log/apache2
PWD	/
PHP Variables
Variable	Value
$_REQUEST['ui-auth-localhost:8091']	43f304be9ef506af413f7fa21c6f8b19
$_COOKIE['ui-auth-localhost:8091']	43f304be9ef506af413f7fa21c6f8b19
$_SERVER['HTTP_HOST']	localhost
$_SERVER['HTTP_CONNECTION']	keep-alive
$_SERVER['HTTP_PRAGMA']	no-cache
$_SERVER['HTTP_CACHE_CONTROL']	no-cache
$_SERVER['HTTP_UPGRADE_INSECURE_REQUESTS']	1
$_SERVER['HTTP_USER_AGENT']	Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36
$_SERVER['HTTP_ACCEPT']	text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3
$_SERVER['HTTP_ACCEPT_ENCODING']	gzip, deflate, br
$_SERVER['HTTP_ACCEPT_LANGUAGE']	en-GB,en-US;q=0.9,en;q=0.8
$_SERVER['HTTP_COOKIE']	ui-auth-localhost%3A8091=43f304be9ef506af413f7fa21c6f8b19
$_SERVER['PATH']	/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
$_SERVER['SERVER_SIGNATURE']	<address>Apache/2.4.7 (Ubuntu) Server at localhost Port 80</address>
$_SERVER['SERVER_SOFTWARE']	Apache/2.4.7 (Ubuntu)
$_SERVER['SERVER_NAME']	localhost
$_SERVER['SERVER_ADDR']	::1
$_SERVER['SERVER_PORT']	80
$_SERVER['REMOTE_ADDR']	::1
$_SERVER['DOCUMENT_ROOT']	/var/www/html
$_SERVER['REQUEST_SCHEME']	http
$_SERVER['CONTEXT_PREFIX']	no value
$_SERVER['CONTEXT_DOCUMENT_ROOT']	/var/www/html
$_SERVER['SERVER_ADMIN']	webmaster@localhost
$_SERVER['SCRIPT_FILENAME']	/var/www/html/phpinfo.php
$_SERVER['REMOTE_PORT']	34858
$_SERVER['GATEWAY_INTERFACE']	CGI/1.1
$_SERVER['SERVER_PROTOCOL']	HTTP/1.1
$_SERVER['REQUEST_METHOD']	GET
$_SERVER['QUERY_STRING']	no value
$_SERVER['REQUEST_URI']	/phpinfo.php
$_SERVER['SCRIPT_NAME']	/phpinfo.php
$_SERVER['PHP_SELF']	/phpinfo.php
$_SERVER['REQUEST_TIME_FLOAT']	1553000099.547
$_SERVER['REQUEST_TIME']	1553000099
$_SERVER['argv']	
Array
(
)
$_SERVER['argc']	0
$_ENV['APACHE_RUN_DIR']	/var/run/apache2
$_ENV['APACHE_PID_FILE']	/var/run/apache2/apache2.pid
$_ENV['PATH']	/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
$_ENV['APACHE_LOCK_DIR']	/var/lock/apache2
$_ENV['LANG']	C
$_ENV['APACHE_RUN_USER']	www-data
$_ENV['APACHE_RUN_GROUP']	www-data
$_ENV['APACHE_LOG_DIR']	/var/log/apache2
$_ENV['PWD']	/
Savchuk, Kirti Velankar
JSON	Jakub Zelenka, Omar Kilani, Scott MacVicar

It seems like /etc/php/7.3/apache2/conf.d/20-couchbase.ini is getting loaded before /etc/php/7.3/apache2/conf.d/20-json.ini. Could you make sure that PHP interpreter loads JSON extensions before couchbase? It is documented on our site: https://docs.couchbase.com/php-sdk/2.6/start-using-sdk.html#post-installation-setting-up-the-php-ini

Problem resolved I found the issue in phn.ini
But thanks for quick response.