เพิ่มความปลอดภัยให้ php

nano /etc/php.ini

disable_functions = eval,exec,system,passthru,shell_exec,proc_close,proc_open,dl,popen,show_source,posix_kill,posix_mkfifo,posix_getpwuid,posix_setpgid,posix_setsid,posix_setuid,posix_setgid,posix_seteuid,posix_setegid,posix_uname

allow_url_fopen=Off
allow_url_include=Off
expose_php=Off

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