PHP简单网页图片抓取类

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(); ? 无 ?php class imgCatcher{const FLODER_DIR = 'image/';const IMG_TY

使用例子
  
  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
    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- alt="PHP简单网页图片抓取类" >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;
        }

    }


 ?>