這篇文章主要介紹了關於php 抓取網頁內容與圖片的方法,有著一定的參考價值,現在分享給大家,有需要的朋友可以參考一下
例子1:
<?php include_once("curl.php");/*這個檔案要自己配置好*/ header("content-type:text/html;charset=utf8"); $pattern_title ="/<title>(.+)<//title>/";//標題匹配 $pattern_code = "/<tr><td><p>(.+)<//p><script/";//網頁內容匹配 $url="http://www.freewl.com/freezcm/2011/0413/3185.html";//根網址 $DATA_CONTENT = CurlGet($url); $num=preg_match_all($pattern_title, $DATA_CONTENT, $match_title); for($i=0;$i<$num;$i++){ echo strlen($match_title[1][$i])."--".$match_title[1][$i]."<br />"; } echo "<hr />"; /*$trans = array(" "=>",", "<br />"=>"。"); $TRANS_CONTENT = strtr($DATA_CONTENT, $trans); echo $TRANS_CONTENT; */ $DATA_CONTENT=preg_replace('//s(?=/s)/', ' ', $DATA_CONTENT);//(?=pattern) 正向預查 $DATA_CONTENT=preg_replace('/[/n/r/t]/', '/r/n', $DATA_CONTENT);//斷行符號換行 $DATA_CONTENT=preg_replace('/ /', ' ', $DATA_CONTENT); $num=preg_match_all($pattern_code, $DATA_CONTENT, $match_code); for($i=0;$i<$num;$i++){ echo $match_code[1][$i]."<br />"; } ?>
例子2:
<?php/*author: ssh_kobedate: 20110615*/set_time_limit(0);//抓取不受時間限制function get_pic($pic_url) {//擷取圖片二進位流$data=CurlGet($pic_url);/*利用Regex得到圖片連結$pattern_src = '/<img.*?\"([^\"]*(jpg|bmp|jpeg|gif)).*?>/';*/$pattern_src = '/<img.*?src\=\"(.*\.jpg).*?>/';//只匹配jpg格式的圖片$num = preg_match_all($pattern_src, $data, $match_src);$arr_src=$match_src[1];//獲得圖片數組//get_name($arr_src);get_name_2($arr_src);echo 'End!!!<br>';return 0;}function get_pic_2($pic_url, $base_site) {//擷取圖片二進位流$data=CurlGet($pic_url);/*利用Regex得到圖片連結*/$pattern_src = '/<img.*?\"([^\"]*jpg).*?>/';//只匹配jpg格式的圖片$num = preg_match_all($pattern_src, $data, $match_src);$arr_src=$match_src[1];//獲得圖片數組$arr_src=rev_site($arr_src, $base_site);get_name($arr_src);echo 'End!!!<br>';return 0;}/* 將圖片相對位址改為絕對位址 */function rev_site($site_list, $base_site){ foreach($site_list as $site_item) { if (preg_match('/^http/', $site_item)) { $return_list[] = $site_item; }else{ $return_list[] = $base_site.$site_item;} } return $return_list;}/*得到圖片類型,並將其儲存到與該檔案同一目錄*/function get_name($pic_arr){ //圖片類型$pattern_type = '/(\.(jpg|bmp|jpeg|gif|png))/'; foreach($pic_arr as $pic_item){//迴圈取出每幅圖的地址 $num = preg_match_all($pattern_type,$pic_item,$match_type); $pic_name = get_unique().$match_type[1][0];//改時微秒時間戳記命名 //以流的形式儲存圖片 $write_fd = @fopen($pic_name,"wb"); @fwrite($write_fd, CurlGet($pic_item)); @fclose($write_fd); echo "OK.."; } return 0;}function get_name_2($pic_arr){ //圖片編號和類型$pattern_type = '/.*\/(.*?)$/'; foreach($pic_arr as $pic_item){//迴圈取出每幅圖的地址 $num = preg_match_all($pattern_type,$pic_item,$match_type); //以流的形式儲存圖片 $write_fd = @fopen($match_type[1][0],"wb"); @fwrite($write_fd, CurlGet($pic_item)); @fclose($write_fd); echo 'OK..'; } return 0;}//通過微秒時間獲得唯一IDfunction get_unique(){list($msec, $sec) = explode(" ",microtime());return $sec.intval($msec*1000000);}//抓取網頁內容function CurlGet($url){ $url=str_replace('&','&',$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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