使用php正則表達式提取html超鏈接中href地址信息
$str_href = "第三步:點右側找個鏈接 <a href='http://www.qipa250.com' target='_blank' style='font-size: xx-large'>點擊鏈接複製</a><input class=\"form-control\" type=\"text\" id=\"qipa250data\" placeholder=\"請將上面鏈接的結果粘貼到這裏\" style=\"height:50px;\"><br> <button type=\"submit\" class=\"btn btn-success btn-lg btn-block\" id=\"qipa250parse\">奇葩天地網</button>";
//第一種
$preg_href = '/<a .*?href=\'(.*?)\'.*?>/is';
/*第二種
$preg_href = '/<a .*?href=\'(.*?)\'[\s\S]target/is';*/
preg_match_all($preg_href, $str_href, $res_href);
echo "<pre>";
var_dump($res_href[1][0]);
打印結果:
D:\wamp\www\hanshu\zhengze.php:26:string 'http://www.qipa250.com' (length=22)