抽取文章中的圖片并保存的PHP代碼

<?php 
/* 
author: ssh_kobe 
date: 20110602 
shortage: 如果網頁中的圖片路徑不是絕對路徑，就無法抓取 
*/ 
set_time_limit(0);//抓取不受時間限制
$URL='http://www.hzhuti.com/';//任意網址
get_pic($URL);
function get_pic($pic_url) { 
//獲取圖片二進制流 
$data=CurlGet($pic_url); 
/*利用正則表達式得到圖片鏈接*/ 
$pattern_src = '/<[img|IMG].*?src=['|"](.*?(?:[.gif|.jpg]))['|"].*?[/]?>/'; 
$num = preg_match_all($pattern_src, $data, $match_src); 
$arr_src=$match_src[1];//獲得圖片數組 
get_name($arr_src);
echo "<br>finished!!!"; 
return 0; 
}
/*得到圖片類型，并將其保存到與該文件同一目錄*/ 
function get_name($pic_arr) 
{ 
//圖片類型 
$pattern_type = '/(/.(jpg|bmp|jpeg|gif|png))/';
foreach($pic_arr as $pic_item){//循環取出每幅圖的地址 
$num = preg_match_all($pattern_type, $pic_item, $match_type); 
$pic_name = get_unique().$match_type[1][0];//改時微秒時間戳命名 
//以流的形式保存圖片 
$write_fd = @fopen($pic_name,"wb"); 
@fwrite($write_fd, CurlGet($pic_item)); 
@fclose($write_fd); 
echo "[OK]..!"; 
} 
return 0; 
}
//通過微秒時間獲得唯一ID 
function get_unique(){ 
list($msec, $sec) = explode(" ",microtime()); 
return $sec.intval($msec*1000000); 
}
//抓取網頁內容 
function CurlGet($url){ 
$url=str_replace('&','&',$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; 
} 
?>