php-fpm check library loaded code example
Example: check loaded extensions php
Array
(
[0] => Core
[1] => date
[2] => libxml
[3] => openssl
[4] => pcre
[5] => zlib
[6] => filter
[7] => hash
[8] => Reflection
[9] => SPL
[10] => sodium
[11] => session
[12] => standard
[13] => apache2handler
[14] => mysqlnd
[15] => PDO
[16] => xml
[17] => calendar
[18] => ctype
[19] => curl
[20] => dom
[21] => mbstring
[22] => fileinfo
[23] => ftp
[24] => gd
[25] => gettext
[26] => iconv
[27] => imagick
[28] => imap
[29] => intl
[30] => json
[31] => exif
[32] => mysqli
[33] => pdo_mysql
[34] => Phar
[35] => posix
[36] => readline
[37] => shmop
[38] => SimpleXML
[39] => soap
[40] => sockets
[41] => sysvmsg
[42] => sysvsem
[43] => sysvshm
[44] => tokenizer
[45] => wddx
[46] => xmlreader
[47] => xmlrpc
[48] => xmlwriter
[49] => xsl
[50] => zip
[51] => Zend OPcache
)