From manual page: https://php.net/function.file en: file([string](https://www.php.net/manual/en/language.types.string.php) $filename, [int](https://www.php.net/manual/en/language.types.integer.php) $flags = 0, [?](https://www.php.net/manual/en/language.types.null.php)[resource](https://www.php.net/manual/en/language.types.resource.php) $context = [null](https://www.php.net/manual/en/reserved.constants.php#constant.null)): [array](https://www.php.net/manual/en/language.types.array.php)|[false](https://www.php.net/manual/en/language.types.value.php) it: file([string](https://www.php.net/manual/it/language.types.string.php) $filename, [int](https://www.php.net/manual/it/language.types.integer.php) $use_include_path = ?, [resource](https://www.php.net/manual/it/language.types.resource.php) $context = ?): [array](https://www.php.net/manual/it/language.types.array.php)
