php抓取网页图片
- <?php
- header('content-type:text/html;charset=utf-8');
- set_time_limit(0);//抓取不受时间限制
- if($_POST['Submit']=="开始抓取"){
- $URL=$_POST['link'];
- get_pic($URL);
- }
- function get_pic($pic_url) {
- //获取图片二进制流
- $data=CurlGet($pic_url);
- //利用正则表达式得到图片链接
- $pattern_src1 = '/<img.*?src\=\"(.*\.jpg).*?>/';//只匹配jpg格式的图片
- $pattern_src2 = '/<img.*?src\=\"(.*\.bmp).*?>/';//只匹配bmp格式的图片
- $pattern_src3 = '/<img.*?src\=\"(.*\.png).*?>/';//只匹配png格式的图片
- $pattern_src4 = '/<img.*?src\=\"(.*\.gif).*?>/';//只匹配gif格式的图片
- $num1 = preg_match_all($pattern_src1, $data, $match_src1);
- $num2 = preg_match_all($pattern_src2, $data, $match_src2);
- $num3 = preg_match_all($pattern_src3, $data, $match_src3);
- $num4 = preg_match_all($pattern_src4, $data, $match_src4);
- $arr_src1=$match_src1[1];//获得图片数组
- $arr_src2=$match_src2[1];
- $arr_src3=$match_src3[1];
- $arr_src4=$match_src4[1];
- echo '=============================================抓取开始=============================================<br />';
- get_name1($arr_src1);
- get_name1($arr_src2);
- get_name1($arr_src3);
- get_name1($arr_src4);
- get_name2($arr_src1);
- get_name2($arr_src2);
- get_name2($arr_src3);
- get_name2($arr_src4);
- echo '=============================================抓取结束=============================================<br />';
- return 0;
- }
- function get_name1($pic_arr){
- //图片编号和类型
- $pattern_type = '/.*\/(.*?)$/';
- foreach($pic_arr as $pic_item){//循环取出每幅图的地址
- $num = preg_match_all($pattern_type,$pic_item,$match_type);
- //以流的形式保存图片
- $write_fd = @fopen($match_type[1][0],"wb");
- echo "图片网址:<a href='".$pic_item."' target='_blank'>".$pic_item."</a><br />";
- @fwrite($write_fd, CurlGet($pic_item));
- @fclose($write_fd);
- }
- return 0;
- }
- function get_name2($pic_arr){
- //图片编号和类型
- $pattern_type = '/.*\/(.*?)$/';
- foreach($pic_arr as $pic_item){//循环取出每幅图的地址
- $num = preg_match_all($pattern_type,$pic_item,$match_type);
- //以流的形式保存图片
- $write_fd = @fopen($match_type[1][0],"wb");
- echo "图片网址:<a href='".$_POST['link'].$pic_item."' target='_blank'>".$_POST['link'].$pic_item."</a><br />";
- @fwrite($write_fd, CurlGet($_POST['link'].$pic_item));
- @fclose($write_fd);
- }
- return 0;
- }
- //抓取网页内容
- 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;
- }
- ?>
- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
- <title>网页图片抓取</title>
- </head>
- <body>
- <form action="" method="post">
- 要抓取图片的网址:<input type="text" id="link" name="link" value="请在这里输入要抓取图片的网址" OnClick="this.value=''" size="100" /><br />
- <input type="submit" id="Submit" name="Submit" value="开始抓取" />
- </form>
- </body>
- </html>
来源: http://www.phpxs.com/code/1003202/