php把内容中图片连接地址替换成自己的

<?php
$files = &#39;<img src="http://img.phprm.com/img/bid_v2/bid_v2_content/p_bid.gif" alt="普通任务" /><img     style="max-width:90%" height="60px" style="padding-top: 10px;" src="http://img.phprm.com/img/index_v3/20100611001.gif" alt="php把内容中图片连接地址替换成自己的 " >&#39;;
// 图片地址转换一下   $p=preg_replace(&#39;//image//&#39;, &#39;http://qq.ip138.com/image/&#39;, $pg[1]);
$reg = "/src\s*=\s*([\&#39;|\"]?[^\s^\&#39;^\"^>]+?[\&#39;|\"]?)/iU";
$img = preg_match_all($reg, $files, $imgs);
for ($i = 0; $i < count($imgs[0]); $i++) {
$pic = trim($imgs[1][$i], &#39;"&#39;."&#39;".&#39; &#39;);
    echo $pic."<br>";
    //保存图片
    $opts = array(
        &#39;http&#39; => array(
            &#39;header&#39; => "referer: http://www.phprm.com/ "
        )
    );
}