This is an overview of the recommended directives for your application. The most important directives have been collected here, for a quick review. The whole list of directive is available as a link to the manual, when applicable. When an extension is missing from the list below, either it as no specific configuration directive, or it is not used by the current code.
| Directive | Suggestion | Description |
|---|---|---|
| file | ||
| allow_url_fopen | Off | Unless you need to access remote files, it is better to be safe and forbid this feature |
| realpath_cache_size | 128k | Determines the size of the realpath cache to be used by PHP. The default value of "16k" is usually too low for modern application that open many files (autoload, fopen, filet_get_contents...). It is recommended to make this value up to 128 to 256k, and reduce it by testing with realpath_cache_get(). |
| realpath_cache_ttl | 3600 | Duration of time (in seconds) for which to cache realpath information for a given file or directory. If the application's code doesn't change too often, you may set this directive to 3600 (one hour) or even more. |
| Extra configurations | File System runtime configuration | |
| pcre | ||
| Extra configurations | PCRE runtime configuration | |
| Enable DL | ||
| enable_dl | Off | Whether or not to enable the dl() function. The dl() function does NOT work properly in multithreaded servers, such as IIS or Zeus, and is automatically disabled on them. |
| Disable features | ||
| disable_functions | exec, passthru, shell_exec, system, proc_open, proc_nice, proc_terminate, proc_get_status, proc_close, popen, pclose, curl_exec, curl_multi_exec, show_source, symlink, fsockopen, pfsockopen, socket_connect, socket_create_listen, socket_create_pair, socket_create, symlink, mail, apache_child_terminate, apache_get_modules, apache_get_version, apache_getenv, apache_note, apache_setenv, pcntl_alarm, pcntl_errno, pcntl_exec, pcntl_fork, pcntl_get_last_error, pcntl_getpriority, pcntl_setpriority, pcntl_signal_dispatch, pcntl_signal, pcntl_sigprocmask, pcntl_sigtimedwait, pcntl_sigwaitinfo, pcntl_strerror, pcntl_wait, pcntl_waitpid, pcntl_wexitstatus, pcntl_wifexited, pcntl_wifsignaled, pcntl_wifstopped, pcntl_wstopsig, pcntl_wtermsig, dl, leak, posix_kill, posix_mkfifo, posix_setpgid, posix_setsid, posix_setuid | This directive allows you to disable certain functions for security reasons. It takes on a comma-delimited list of function names. disable_functions is not affected by Safe Mode. ; 1 sensitive functions were found in the code. Don't disable those : |
| disable_classes | phar | This directive allows you to disable certain classes for security reasons. It takes on a comma-delimited list of class names. disable_classes is not affected by Safe Mode. This directive must be set in php.ini. ; 1 sensitive classes were found in the code. Don't disable those : |