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();
?>
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;//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.$match_type,"wb");
fwrite($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;
}
}
?> 自动保存到本地硬盘了吗?
页:
[1]