framework/Fs/Helpers.php
public static function dirMTime($path)
    {
        clearstatcache();
        return max(
            array_map(
                function ($f) {
                    return filemtime($f);
                },
                self::listDirRecursive($path)
            ),
            filemtime($path)
        );
    }
public static function dirMTime($path)
    {
        clearstatcache();
        return max(
            array_map(
                function ($f) {
                    return filemtime($f);
                },
                self::listDirRecursive($path)
            ),
            filemtime($path)
        );
    }
public static function dirMTime ( $ path ) { clearstatcache ( ) ; return max ( array_map ( function ( $ f ) { return filemtime ( $ f ) ; } , self :: listDirRecursive ( $ path ) ) , filemtime ( $ path ) ) ; }
Max filemtime at path recursive
@param string $path
@return int
Max filemtime at path recursive