在两个循环内设置数组

我发布一个文本区域到我的php脚本，然后我做一个循环的文本区域的每一行，然后使用从文本区域循环的数据另一次。然后，我试图为每个人设置一个数组，并在最后检索所有这些数组。然而，我的代码给我错误:

if (isset($_POST['submit'])) {
        $entries = array();
    $text    = trim($_POST['facebookpage']);
    $text    = explode("'n", $text);
    foreach ($text as $line) {
        $data = $html2->find("table.profileInfoTable");
        $text2 = trim($data[0]);
        $text2 = explode("<tr>", $text2);
        foreach ($text2 as $line) {
            if (strpos($line, 'Location') !== false) {
                $location = $line;
            }
        }
        $data1 = $html2->find("table.profileInfoTable");
        $text2 = trim($data1[0]);
        $text2 = explode("<tr>", $text2);
        foreach ($text2 as $line) {
            if (strpos($line, 'Email') !== false) {
                $email = $line;
            }
        }
    $mainarray = array("Email" => $email, "Location" => $location);
    array_push(($mainarray),$entries);
    }
    var_dump($entries);
}`

错误是:

Fatal error: Only variables can be passed by reference in /home2/statonme/public_html/scraper.php on line 61