Heim >Backend-Entwicklung >PHP-Tutorial >php中正则无法匹配内容
php中正则无法匹配内容
- WBOYOriginal
- 2016-06-06 20:06:14957Durchsuche
<code><?php $output = '
<div class=obssin>
<div class="substatus">看过</div>
<ul>
<li class="aob">
<a href="https://movie.douban.com/subject/3338862/" title="终结者：创世纪
终结者：创世纪 / 终结者5" target="_blank">
<img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p2262649521.jpg" class="climg" alt="终结者：创世纪">
</a>
</li>
<li class="aob">
<a href="https://movie.douban.com/subject/1291844/" title="终结者2：审判日
终结者2：审判日 / 终结者2" target="_blank">
<img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p1910909085.jpg" class="climg" alt="终结者2：审判日">
</a>
</li>
<li class="aob">
<a href="https://movie.douban.com/subject/1300656/" title="终结者
终结者 / 魔鬼终结者" target="_blank">
<img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p511430453.jpg" class="climg" alt="终结者">
</a>
</li>
<li class="aob">
<a href="https://movie.douban.com/subject/24404677/" title="超体
超体 / LUCY：绝路煞姬(港)" target="_blank">
<img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p2201909284.jpg" class="climg" alt="超体">
</a>
</li>
<li class="aob">
<a href="https://movie.douban.com/subject/25827963/" title="西游记之孙悟空三打白骨精
西游记之大闹天宫续集" target="_blank">
<img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p2315805100.jpg" class="climg" alt="西游记之孙悟空三打白骨精">
</a>
</li>
</ul>
<div class="clear"></div>
';
$output=preg_replace("/[\t\n\r]+/","",$output);
$partern='/<div class="obssin">
<div class="substatus">看过<ul><li class="aob"><a href="(%5B%5E<>%5D+)" title="([^<>]+)" target="_blank"><img src="(%5B%5E<>%5D+)" class="climg" alt="([^<>]+)">/';
preg_match_all($partern,$output,$result);
var_dump($result);
?>
<p>这样为什么匹配不到内容？</p>
<h2>回复内容：</h2>
<pre class="brush:php;toolbar:false"><code><?php $output = '
<div class=obssin>
<div class="substatus">看过</div>
<ul>
<li class="aob">
<a href="https://movie.douban.com/subject/3338862/" title="终结者：创世纪
终结者：创世纪 / 终结者5" target="_blank">
<img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p2262649521.jpg" class="climg" alt="终结者：创世纪">
</a>
</li>
<li class="aob">
<a href="https://movie.douban.com/subject/1291844/" title="终结者2：审判日
终结者2：审判日 / 终结者2" target="_blank">
<img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p1910909085.jpg" class="climg" alt="终结者2：审判日">
</a>
</li>
<li class="aob">
<a href="https://movie.douban.com/subject/1300656/" title="终结者
终结者 / 魔鬼终结者" target="_blank">
<img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p511430453.jpg" class="climg" alt="终结者">
</a>
</li>
<li class="aob">
<a href="https://movie.douban.com/subject/24404677/" title="超体
超体 / LUCY：绝路煞姬(港)" target="_blank">
<img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p2201909284.jpg" class="climg" alt="超体">
</a>
</li>
<li class="aob">
<a href="https://movie.douban.com/subject/25827963/" title="西游记之孙悟空三打白骨精
西游记之大闹天宫续集" target="_blank">
<img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p2315805100.jpg" class="climg" alt="西游记之孙悟空三打白骨精">
</a>
</li>
</ul>
<div class="clear"></div></code>
改为:$partern='/<div class="obssin"><div class="substatus">看过<ul><li class="aob"><a href="(%5B%5E<>%5D+)" title="([^<>]+)" target="_blank"><img src="(%5B%5E<>%5D+)" class="climg" alt="([^<>]+)">/';
<p>PS:不建议这样用正则</p>
</a></li></ul>
</div></div>
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