php_ini_scanned_files returns a comma-separated list of configuration files parsed after php.ini. The directories searched are set by a compile time option and, optionally, by an environment variable at run time: more information can be found in the installation guide.
The returned configuration files include the full path.
This function has no parameters.
Returns a comma-separated string of .ini files on success. Each comma is followed by a newline. If the configure directive --with-config-file-scan-dir wasn't set and the PHP_INI_SCAN_DIR environment variable isn't set, false is returned. If it was set and the directory was empty, an empty string is returned. If a file is unrecognizable, the file will still make it into the returned string but a PHP error will also result. This PHP error will be seen both at compile time and while using php_ini_scanned_files.