網頁抓圖

header('Content-Type:text/html;charset=utf-8');

/**
 * 一個用來抓去圖片的類別
 * @author tangpan
* /
class download_image {
 public $_save_path = NULL; //圖片儲存路勁
 public $_limit_size = NULL; //圖片限制大小
 public static $_img_url_old = array() //儲存已抓取過的圖片連結位址
 public static $_a_page_url = array(); //儲存抓取過的頁面
 public function __construct( $_save_path, $_limit_size) {
 $this-> _save_path = $_save_path;
 $this->_limit_size = $_limit_size;
 }

 public function get_all_page_image( $site_url ) {
 if > return false;
 }
 if ( ! in_array( $site_url, self::$_a_page_url ) ) { //判斷目前頁面是否抓取過
 self::$_a_page_url[] = $site_url; //將超連結存入靜態陣列
 } else {
 return; //若抓取過則跳出
 }
 $this->download_the_page_image( $site_url );
 $ content = @file_get_contents($site_url);
 $a_page_url = "|] href=['" ]?([^ '"?] )['" >]|U";
 $all_url = array();