php上传收藏夹导出导入正则表达式提取链接url和标题title

<?php
/*
 * @author          LiZHenQiu QQ:3207885181 <2500152288@qq.com>
 * @copyright       Copyright (c) 1990-2015  (http://www.lizhenqiu.com)
 */

//调试 数组打印函数
function dump($vars, $label = '', $return = false) { 
    if (ini_get('html_errors')) { 
        $content = "<pre>\n"; 
        if ($label != '') { 
            $content .= "<strong>{$label} :</strong>\n"; 
        } 
        $content .= htmlspecialchars(print_r($vars, true)); 
        $content .= "\n</pre>\n"; 
    } else { 
        $content = $label . " :\n" . print_r($vars, true); 
    } 
    if ($return) { return $content; } 
    echo $content; 
    return null; 
}

//正则提取链接 和标题
function get_links($content) {
 $pattern = '/<a(.*?)href="(.*?)"(.*?)>(.*?)<\/a>/i';
 preg_match_all($pattern, $content, $m);
 return $m;
}

$content=fopen("20140308-195824.html", "r") or die("Unable to open file!");
$content=fread($content,filesize("20140308-195824.html"));
fclose($content);



//dump(get_links($content));
$url_title=array();
$in_url_title=get_links($content);
foreach($in_url_title['2'] as $key=>$v){
        $url_title[$key]['url']=$v;
}
foreach ($in_url_title['4'] as $key=>$v) {
        $url_title[$key]['title']=$v;
}
dump($url_title);