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使用例子
<?php
include "imgCatcher.class.php";
header('content-type:text/html;charset=utf-8');
$catcher = New imgCatcher("http://www.oschina.net/","images","jpg");
$catcher->get_pic();
?>
php图片抓取类- <?php
- class imgCatcher{
-
- const FLODER_DIR = 'image/';
- const IMG_TYPE = 'jpg|bmp|png|gif';
-
- var $floder;
- var $url;
- var $type;
- var $domain;
- var $pic_arr;
-
- public function __construct($url,$floder='',$type=''){
- $this->url = $url;
-
- $url_arr = parse_url($url);
-
- $this->domain = array_shift($url_arr);
-
- if(trim($floder) == ""){
- $this->folder = FLODER_DIR;
- }else{
- $this->folder = $floder.'/';
- }
-
- if(trim($type)==""){
- $this->type = IMG_TYPE;
- }else{
- $this->type = $type;
- }
-
- $this->pic_arr = array();
- if(!is_dir(__DIR__.'/'.$this->folder))
- mkdir(__DIR__.'/'.$this->folder);
- }
-
- public function get_pic(){
- set_time_limit(0);//抓取不受时间限制
- //获取图片二进制流
- $data = self::CurlGet($this->url);
- //利用正则表达式得到图片链接
- $pattern_src = '/<img.*?src\=\"(.*\.('.$this->type.')).*?>/';//
- $num = preg_match_all($pattern_src, $data, $match_src);
-
- $this->pic_arr=$match_src[1];//获得图片数组
-
-
- $this->get_name();
-
- return 0;
- }
-
- public function get_name(){
- $pic_arr = $this->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
- $write_fd = fopen($this->folder.$match_type[1][0],"wb");
-
- fwrite($write_fd, self::CurlGet($pic_item,$this->url));
- fclose($write_fd);
- }
-
- return 0;
- }
-
-
- //抓取网页内容
- static function CurlGet($url,$domain=""){
- if(substr($url, 0, 1) == "/"){
- $url = $domain.$url;
- }
-
- if(substr($url, 0, 1) == "."){
- $url = $domain.substr($url, 1);
- }
-
- if(substr($url, 0, 2) == ".."){
- $url = $domain.substr($url, 2);
- }
- $url=str_replace('&','&',$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;
- }
-
- }
-
-
- ?>
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