PHP functions to disable

Hello, This is my disable_functions: disable_functions = "file_put_contents,dl,apache_child_terminate,apache_get_modules,apache_note,apache_setenv,curl_exec,define_syslog_variables,disk_free_space,disk_total_space,diskfreespace,dl,escapeshellarg,escapeshellcmd,get_cfg_var,get_current_user,getlastmod,getmygid,getmyinode,getmypid,getmyuid,ini_restore,passthru,pcntl_alarm,pcntl_exec,pcntl_fork,pcntl_get_last_error,pcntl_getpriority,pcntl_setpriority,pcntl_signal,pcntl_signal_dispatch,pcntl_sigprocmask,pcntl_sigtimedwait,pcntl_sigwaitinfo,pcntl_strerrorp,pcntl_wait,pcntl_waitpid,pcntl_wexitstatus,pcntl_wifexited,pcntl_wifsignaled,pcntl_wifstopped,pcntl_wstopsig,pcntl_wtermsig,posix_getlogin,posix_getpwuid,posix_kill,posix_mkfifo,posix_setpgid,posix_setsid,posix_setuid,posix_ttyname,posix_uname,posixc,proc_close,proc_get_status,proc_nice,proc_terminate,ps_aux,runkit_function_rename,shell_exec,show_source,symlink,syslog,system,proc_open,popen,curl_exec,curl_multi_exec,parse_ini_file,show_source,allow_url_fopen,phpinfo,symlink,open_base" Anything to add or to remove? Thanks