php curl,爬虫

 1 <?php

 2 

 3 class grabInfo{

 4     public $content;

 5     /*Init 初始化 */

 6     public function __construct($url){

 7         $this->ch=curl_init();

 8         curl_setopt($this->ch,CURLOPT_URL,$url);

 9          curl_setopt($this->ch, CURLOPT_RETURNTRANSFER,1); 

10         curl_setopt($this->ch,CURL_HEADER,1); 

11     }

12 /*get Image Information 保存图片,*/

13     protected function _getImgInfo(){

14         $flagImg='/<\s*img\s+[^>]*?src\s*=\s*(\'|\")(.*?)\\1[^>]*?\/?\s*>/i';

15         preg_match_all($flagImg,$this->content,$imgArr);

16         $imgInfo=getimagesize($imgArr[2][0]);

17         $fpath=$imgArr[2][0];

18         $this->_getPath($fpath);

19         $imgCreate=str_replace('/', 'createfrom', $imgInfo['mime']);

20         imagepng($img,$fpath.$imgArr[2][0]);

21     }

22 /*create Folder path 创建图片存在路径*/

23     protected function _getPath($fpath='a/b.jpg'){

24         $fpath=str_replace('\\','/',$fpath);

25         $fpath=substr($fpath, 0,strrpos($fpath, '/'));

26         $fpathArr=explode('/', $fpath);

27         foreach ($fpathArr as $key => $value) {    

28             $folderPath.=$value.'/';

29             if(!file_exists($value)){    

30                 mkdir($folderPath);

31                 chmod($folderPath,0777);    

32             }

33         }

34     }

35 /*save fileString to file爬虫页面的内容保存到本地*/

36     protected function _getString(){

37         $filePath='myGrab.php';

38         $handle=fopen($filePath,'w+');

39         fwrite($handle, $this->content);

40         fclose($handle);

41 

42     }

43 /*all operation用户调用的*/

44     public function curlExec(){

45         $this->content=curl_exec($this->ch);

46         $this->_getString();

47         $this->_getImgInfo();

48     }

49 }

50 

51 $grabObj=new grabInfo('127.0.0.1/test.php');

52 $grabObj->curlExec();            

这是我自己刚看，刚写的，有不足的地方，请见两