Roe Collector Card Game (juast the card regex)

function regex_cards( $page = '' )
{
    $nen = nen_ini();
    $result = '';

    //load card regular expression

    $card_pattern ='/CASE "(?<cardname>_{4}|[a-z][a-z0-9_]{3})"(?:\s*+(?!CASE).*\n)*/m';
    $card_pattern2 = file_get_contents( $nen[ 'root' ]. 'pcre/card data.pattern.pcre' );
    if( $card_pattern !== $card_pattern2 )
    {
        $card_pattern = $card_pattern2;
    }
    unset( $card_pattern2 );

    // assign replacement (unused)
    $card_replace = "$0\n";

    // create desination folder if it does not exist
    if( !is_dir( $nen[ 'root' ]. 'cards out data' ) )
    {
        mkdir ( $nen[ 'root' ]. 'cards out data' );
    }

    // perform current page data regex

    if(
        preg_match_all(
        $card_pattern,
        $page,
        $card_matches
        )
    )
    {
        //foreach($card_matches as $card_key => $card_value )
        //{
            //trk_echo2( 'card', array( 'cardname' => $card_matches[ 'cardname' ], 'card_value' => $card_matches[ 0 ] ) );

            // save creation card collection to file
            file_put_contents( $nen[ 'root' ]. 'cards out data/'. $card_matches[ 'cardname' ][ 0 ]. '.dat', $card_matches[ 0 ][ 0 ] );
        //}

    }

    return $result;

}