<?php
$file = file_get_contents("http://www.zj.com/");
preg_match_all("/<img src=[\"|\'](.*)[\"\'].*>/isU",$file,$arr);
foreach($arr[1] as $key => $value)
{
	$pos = strrpos($value,"http");
	if($pos === false)
	{
		continue;
	}
	 $i = file_get_contents($value);
	 file_put_contents($key.".jpg",$i);
}