src/Thumbnail.php
public static function isSrcPathExists(string $path, string $file = null): bool
    {
        $src = self::$parameters['dir'] . $path . $file;
        return file_exists($src) && is_file($src);
    }
public static function isSrcPathExists(string $path, string $file = null): bool
    {
        $src = self::$parameters['dir'] . $path . $file;
        return file_exists($src) && is_file($src);
    }
public static function isSrcPathExists ( string $ path , string $ file = null ) : bool { $ src = self :: $ parameters [ 'dir' ] . $ path . $ file ; return file_exists ( $ src ) && is_file ( $ src ) ; }
Is src path exists.

@param string      $path
@param string|null $file
@return bool
Is src path exists .