explode array in a for loop

[gilgalbiblewhee]

    $pattern=Array();
    $pattern[0] = "<a(\s+(title=(\"[^\"]*\")|href=(\"[^\"]*\")|\w+=(\"[^\"]*\"|\S+)))+>";
    $pattern[1] = "#<a.*>(.+)</a#Ui"; //preg_match pattern in a for loop to get the href, title and innerhtml and exclude the book title in brackets
    preg_match_all($pattern[0], $file, $file_1);
    for($i=0; $i<count($file_1[4]); $i++){
        $href=str_replace("\"", "", $file_1[4]);
    }
    for($i=0; $i<count($file_1[3]); $i++){
        $title=str_replace(" ", "", str_replace("\"", "", $file_1[3]));
    }
    preg_match_all($pattern[1], $file, $file_2);
    print_r($file_2[1]);
    for($i=0; $i<count($file_2[1]); $i++){
        $heb=explode(")", $file_2[1][$i]);
    }
//var_dump($heb); 

I realize that I don't need to declare $heb as an array $heb=Array(); but I need to gather $file_2[1][$i][1] into one array. How would that be possible?