Fast_Cat_II

function fast_cat_ii( $path = '', $ext = array(), $type = __FILE__ )
{
    if( !is_array( $ext ) )
    {
        $ext = array( $ext );
    }

    $cat = array();

    $iterator = new DirectoryIterator( dirname( $type ) );

    while( $iterator -> valid() )
    {
        $test = $iterator -> getFilename();

        foreach( $ext as $test_ext )
        {
            if( strtolower( substr( $test, -strlen( $ext ) ) ) === strtolower( $test_ext ) )
            {
                $cat[] = $test -> getPathname();
                break;
            }
        }
        $iterator -> next();
    }

    natcasesort( $cat );
    $cat = array_values( $cat );

    return $cat;
}

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