php匹配网页中的内容信息

<?php
    $url = "http://www.xxx.com/";
    $data = file_get_contents($url);
    //获取html中某个div中的信息
    preg_match('/<div.*?class=\"dyw820_text_List\".*?>(.*?)<\/div>/is',$data,$match);
    $info = $match[1];
    // var_dump($info);die;
    //匹配a链接中的标题和链接
    preg_match_all('/<a.*?href="(.*?)">(.*?)<\/a>/', $info, $match2);
    $alls = $match2[0];
    // var_dump($alls);die;
    $content = [];
    foreach ($alls as $key => $value) {
        preg_match_all('/<a\s*href=\"(.*?)\".*?>(.*?)<\/a>/',$value,$array);
        $temp = [];
        foreach ($array as $k2 => $v2) {
            if ($k2==0) {
                $temp['title'] = trim(trim(strip_tags($v2[0]),"|"));
            }
            if ($k2==1) {
                $temp['src'] = strip_tags($v2[0]);
            }
        }
        $content[] = $temp;
    }
    var_dump($content);
?>