Disabled PHP functions:

allow_url_include
apache_child_terminate
apache_setenv
exec
passthru
pcntl_exec
posix_kill
posix_mkfifo
posix_getpwuid
posix_setpgid
posix_setsid
posix_setuid
posix_setgid
posix_seteuid
posix_setegid
posix_uname
proc_close
proc_get_status
proc_open
proc_terminate
shell_exec
show_source
system