求教各位大神，我用正则取href后面链接，试了很久都没有试出来

[我的小鱼干呢]

<div class="jin-flash_icon">
<a target="_blank" href="//view.jin10.com/news20190312181454391200.html"><i class="jin-icon jin-icon_flashNews"></i></a>
</div>

[床上等您]

<?php

$str=<<<STR
<div class="jin-flash_icon">
             <a target="_blank" href="//view.jin10.com/news20190312181454391200.html"><i class="jin-icon jin-icon_flashNews"></i></a>
            </div>
STR;

preg_match_all('#href="(.*?)"#', $str, $matches);
var_dump($matches);

array(2) {
  [0]=>
  array(1) {
    [0]=>
    string(53) "href="//view.jin10.com/news20190312181454391200.html""
  }
  [1]=>
  array(1) {
    [0]=>
    string(46) "//view.jin10.com/news20190312181454391200.html"
  }
}