PHPは正規表現で画像を現地にダウンロードしてコードを実現します。

<?php 
/* 
author: ssh_kobe 
date: 20110602 
shortage:                 ，      
*/ 
set_time_limit(0);//         

$URL='http://pp.baidu.com/';//     

get_pic($URL); 

function get_pic($pic_url) { 
//         
$data=CurlGet($pic_url); 
/*             */ 
$pattern_src = '/<[img|IMG].*?src=[\'|\"](.*?(?:[\.gif|\.jpg]))[\'|\"].*?[\/]?>/'; 
$num = preg_match_all($pattern_src, $data, $match_src); 
$arr_src=$match_src[1];//       
get_name($arr_src); 

echo "<br>finished!!!"; 
return 0; 
} 

/*      ，              */ 
function get_name($pic_arr) 
{ 
//     
$pattern_type = '/(/.(jpg|bmp|jpeg|gif|png))/'; 

foreach($pic_arr as $pic_item){//           
$num = preg_match_all($pattern_type, $pic_item, $match_type); 
$pic_name = get_unique().$match_type[1][0];//          
//          
$write_fd = @fopen($pic_name,"wb"); 
@fwrite($write_fd, CurlGet($pic_item)); 
@fclose($write_fd); 
echo "[OK]..!"; 
} 
return 0; 
} 

//          ID 
function get_unique(){ 
list($msec, $sec) = explode(" ",microtime()); 
return $sec.intval($msec*1000000); 
} 

//       
function CurlGet($url){ 
$url=str_replace('&amp;','&',$url); 
$curl = curl_init(); 
curl_setopt($curl, CURLOPT_URL, $url); 
curl_setopt($curl, CURLOPT_HEADER, false); 

//curl_setopt($curl, CURLOPT_REFERER,$url); 
curl_setopt($curl, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; SeaPort/1.2; Windows NT 5.1; SV1; InfoPath.2)"); 
curl_setopt($curl, CURLOPT_COOKIEJAR, 'cookie.txt'); 
curl_setopt($curl, CURLOPT_COOKIEFILE, 'cookie.txt'); 
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 0); 
$values = curl_exec($curl); 
curl_close($curl); 
return $values; 
} 
?>