PHP抓取网页图片

<?php
 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){ 
  $url=str_replace('&amp;','&',$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;
 }
?>
<html>
 <head>
  <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>

上一篇: couldn't resolve host api.weixin.qq.com
下一篇: mysql中“Table ‘’ is read only”的解决办法

点击获得Trackback地址

发表评论

内 容: