Question

PHP正则提取 DIV CLASS 数据

<div class="lot-nums">
<span class="no7"></span>
<span class="no8"></span>
<span class="no5"></span><span class="no9"></span><span class="no2">
</span><span class="no4"></span><span class="no6"></span><span class="no0">
</span><span class="no3"></span> <span class="no1"></span>
</div>

请问如何用PHP提取class里边的 数据 然后 将no前缀去除。

no7 no8 no5 no9 no2 no4 no6 no0 no3 no1

7 8 5 9 2 4 6 0 3 1

Answer 1

用PHP正则表达式匹配,就可以提取class里面的数据,并将no去除,完整的PHP程序如下

<?php
 $str='<div class="lot-nums"><span class="no7"></span><span class="no8"></span><span class="no5"></span><span class="no9"></span><span class="no2"></span><span class="no4"></span><span class="no6"></span><span class="no0"></span><span class="no3"></span> <span class="no1"></span></div>'; 
 $regex='/<span class="no(\d+)"/i'; 
 preg_match_all($regex,$str,$result); 
 print_r($result[1]); 
?>

运行结果