PHP：在PHP - VoidCC

更换指定的标记值看看下面的HTML例子：PHP：在PHP

<iframe width="AnyNumber" height="AnyNumber">

如何我可以替换任何数量指定数量的$ 1的宽度和高度2 $？它们可以被替换为：

<iframe height="AnyNumber" width="AnyNumber">

来源

2011-09-25 user963544

我不知道我理解你的问题。您是生成HTML还是解析它并尝试替换一些值？（至于属性顺序：无关紧要。） – Mat

如果你想在HTML中回显PHP变量，你可以像”height =“<？php echo $ 2 ;？>“> – <span class="text-secondary"> <small> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/596068/">Alex</a></span> <span></span> </small> </span> </p> </div> </div> </div> </div> </div> </article> </div> <div class="answer-title"> <span class="text-logo margin-top-sm">A</span> <h2 class="title h4">回答</h2> </div> <div class="item-description text-md markdown-body margin-bottom-40 voidso"> <article class="board-top-1 padding-top-10"> <div class="post-col vote-info"> <span class="count">0<i class="fa fa-thumbs-up"></i></span> </div> <div class="post-offset"> <div class="answer fmt"> <p>它让我想起了模板。</p> <p>例如，你有你喜欢这个</p> <pre><code class="prettyprint-override"><div class="nav">@navigationMenu</div> <img src="@imgSrc"> <span>@title</title> <p>@article</p> </code></pre> <p>HTML文件，然后用一个简单的PHP类，你用需要的值替换，例如：</p> <pre><code class="prettyprint-override">$this->registry->main_layout->set('imgSrc', './img/green.jpg'); </code></pre> <p>有很多教程沿实现这一点的源代码（通常是一个简单的PHP类）。</p> </div> <div class="post-info"> <div class="post-meta row"> <p class="text-secondary col-lg-6"> <span class="source"> <a rel="noopener" target="_blank" href="https://stackoverflow.com/q/7546256">来源</a> </span> </p> <p class="text-secondary col-lg-6"> <span class="float-right date"> <span>2011-09-25 14:49:09</span> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/642173/">Melsi</a></span> </p> <p class="col-12"></p> <p class="col-12"></p></div> </div> </div> </article> <div> <script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6208739752673518" data-ad-slot="4319274062" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> <article class="board-top-1 padding-top-10"> <div class="post-col vote-info"> <span class="count">0<i class="fa fa-thumbs-up"></i></span> </div> <div class="post-offset"> <div class="answer fmt"> <pre><code class="prettyprint-override">$exmpl = '<iframe width="AnyNumber" height="AnyNumber">'; $exmpl = preg_replace('/(<iframe.*?width=").*?"/', "\${1}$argv[1]\"", $exmpl); $exmpl = preg_replace('/(<iframe.*?height=").*?"/', "\${1}$argv[2]\"", $exmpl); </code></pre> </div> <div class="post-info"> <div class="post-meta row"> <p class="text-secondary col-lg-6"> <span class="source"> <a rel="noopener" target="_blank" href="https://stackoverflow.com/q/22008564">来源</a> </span> </p> <p class="text-secondary col-lg-6"> <span class="float-right date"> <span>2014-02-25 08:33:23</span> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/2413201/">Armali</a></span> </p> <p class="col-12"></p> <p class="col-12"></p></div> </div> </div> </article> <article class="board-top-1 padding-top-10"> <div class="post-col vote-info"> <span class="count">0<i class="fa fa-thumbs-up"></i></span> </div> <div class="post-offset"> <div class="answer fmt"> <p>$ exmpl ='iframe width =“AnyNumber”height =“AnyNumber”>';</p> <p>$ exmpl = str_replace（'width =“AnyNumber”'，'width =“'。$ 1。'”'，$ exmpl）;您可以使用$ exmpl = str_replace（'height =“AnyNumber”'，'width =“'。$ 2。'”'，$ exmpl）;</p> </div> <div class="post-info"> <div class="post-meta row"> <p class="text-secondary col-lg-6"> <span class="source"> <a rel="noopener" target="_blank" href="https://stackoverflow.com/q/22010599">来源</a> </span> </p> <p class="text-secondary col-lg-6"> <span class="float-right date"> <span>2014-02-25 10:00:51</span> </p> <p class="col-12"></p> <p class="col-12"></p></div> </div> </div> </article> </div> <div class="clearfix"> </div> <div class="relative-box"> <div class="relative">相关问题</div> <ul class="relative_list"> <li> 1. <a href="http://cn.voidcc.com/question/p-npeyuwtu-dx.html" target="_blank" title="在PHP中嵌入PHP"> 在PHP中嵌入PHP </a> </li> <li> 2. <a href="http://cn.voidcc.com/question/p-cqfpyviw-oc.html" 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