<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">
@@##@@
</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">
@@##@@
</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">
@@##@@
</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">
@@##@@
</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">
@@##@@
</a>
</li>
</ul>
<div class="clear"></div></div>
</div>';
$output=preg_replace("/[\t\n\r]+/","",$output);
$partern='/<div class=obssin><div class="substatus">看过<\/div><ul><li class="aob"><a href="([^<>]+)" title="([^<>]+)" target="_blank">@@##@@]+)" class="climg" alt="([^<>]+)"\/><\/a><\/li><\/ul><\/div>/';
preg_match_all($partern,$output,$result);
var_dump($result);
?></code>这样为什么匹配不到内容？
<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">
@@##@@
</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">
@@##@@
</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">
@@##@@
</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">
@@##@@
</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">
@@##@@
</a>
</li>
</ul>
<div class="clear"></div></div>
</div>';
$output=preg_replace("/[\t\n\r]+/","",$output);
$partern='/<div class=obssin><div class="substatus">看过<\/div><ul><li class="aob"><a href="([^<>]+)" title="([^<>]+)" target="_blank">@@##@@]+)" class="climg" alt="([^<>]+)"\/><\/a><\/li><\/ul><\/div>/';
preg_match_all($partern,$output,$result);
var_dump($result);
?></code>这样为什么匹配不到内容？
$partern 结尾多了
改为:$partern='/<div class="obssin"><div class="substatus">看过<ul><li class="aob"><a href="(%5B%5E<>%5D+)" title="([^<>]+)" target="_blank"><img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p2262649521.jpg" class="climg" alt="终结者：创世纪">]+)" class="climg" alt="([^]+)"\/>/';
<p>PS:不建议这样用正则</p>
<div class="aritcle_card">
<a class="aritcle_card_img" href="/ai/2008">
<img src="https://img.php.cn/upload/ai_manual/000/000/000/175679969544716.png" alt="Poixe AI">
</a>
<div class="aritcle_card_info">
<a href="/ai/2008">Poixe AI</a>
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<div class="">
<img src="/static/images/card_xiazai.png" alt="Poixe AI">
<span>61</span>
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<a href="/ai/2008" class="aritcle_card_btn">
<span>查看详情</span>
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<p><span>立即学习</span>“<a href="https://pan.quark.cn/s/7fc7563c4182" style="text-decoration: underline !important; color: blue; font-weight: bolder;" rel="nofollow" target="_blank">PHP免费学习笔记（深入）</a>”；</p>
<img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p1910909085.jpg" class="climg" alt="终结者2：审判日"><img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p511430453.jpg" class="climg" alt="终结者"><img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p2201909284.jpg" class="climg" alt="超体"><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"><img src="(%5B%5E<><img%20src=" https: class="climg" alt="终结者：创世纪"><img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p1910909085.jpg" class="climg" alt="终结者2：审判日"><img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p511430453.jpg" class="climg" alt="终结者"><img src="https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p2201909284.jpg" class="climg" alt="超体"><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"><img src="(%5B%5E<><img%20src=" alt="php中正则无法匹配内容" ></a></li></ul>
</div></div>
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