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使用正则表达式匹配HTML 下各种
标签</a></h1> </div> </header> <main class="content" role="main"> <div class="leftbox"> <article class="post tag-uifont tag-webview"> <header class="post-header"> <footer class="tc"> <time class="post-date" datetime="2022-12-23">2022-12-23</time> </footer> </header> <section class="post-content"> <div class="contentbef"> </div> <p>http://www.oschina.net/question/195686_46313</p> <p> </p> <p><title>标题</title></p> <p><title><br>标题<br></title></p> <p>我自己写的正则表达式是 "<title>.*?</title>" (没有双引号) 只能匹配第一种，，但是不能匹配第二种，，有没有好的正则表达式匹配类似第二种这样换行的标签</p> <p> </p> <p>试试这个</p> <p><title>[\s\S]*?</title></p> <p> </p> <p>---------------------</p> <p>php版的 /<title>.*?</title>/m</p> <p>--------------------------</p> <p><code class="php variable">$pattern</code> <code class="php plain">= </code><code class="php string">'/<title>([\S\s]*?)<\/title>/'</code><code class="php plain">;</code></p> <p>-----------------------------</p> <p> </p> <pre>//正则提取，匹配次数<br>$match_nums =preg_match_all('/<title>([\S\s]*?)<\/title>/',$article, $matchs);<br>//匹配项是一个二维数组<br>//echo print_r($matchs);<br>//返回完整匹配次数（可能是0），或者如果发生错误返回FALSE。<br>if($match_nums == 0 || $match_nums == FALSE ){<br> //没有匹配就原样返回<br> return array();<br>}<br><br>//第一个是完整匹配，第二个匹配就是去掉title标签的纯文本<br>$title = $matchs[1][0];</pre> <p> </p> <div style="margin-top: 10px;"> </div> </section> <footer class="post-footer"> <section class="author"> </section> </footer> <p class="mt10">相关文章：</p> <div style="width: 100%;" class="contentcard"> <div style="width: 100%;height: auto;" class="carditem litem clearfix"> <ul style="padding-left: 0rem;" class="cardcont"> <li> <a title="正则表达式匹配HTML标签或标记" href='/show-306874514.html' target="_blank"></a> <span>2021-07-12</span> </li> <li> <a title="Java/Js下使用正则表达式匹配嵌套Html标签" href='/show-307214007.html' target="_blank"></a> <span>2022-12-23</span> </li> <li> <a title="使用正则表达式匹配嵌套Html标签（转）" href='/show-308017666.html' target="_blank"></a> <span>2022-12-23</span> </li> <li> <a 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