Php 使用正则表达式获取按钮html部分（preg_match_all）

下面是我的html

$testHtml ='<div class="product-info" style="min-height: 190px;">
         <h2 class="product-name"><a title="Ottoman" href="">Ottoman</a></h2>
          <div class="price-box">
               <span id="product-price-51" class="regular-price">
               <span class="price">$299.99</span></span>
          </div>
          <div class="ratings">
               <div class="rating-box">
                  <div style="width:69%" class="rating"></div>
               </div>
              <span class="amount"><a onclick="var t = opener ? opener.window : window; t.location.href=''; return false;" href="#">4 Review(s)</a></span>
          </div>
          <div class="actions">
                  <button onclick="setLocation('')" class="button btn-cart" title="Add to Cart" type="button"><span><span>Add to Cart</span></span></button>
                  <ul class="add-to-links">
                       <li><a class="link-wishlist" href="">Add to Wishlist</a></li>
                       <li><span class="separator">|</span><a class="link-compare" href="/">Add to Compare</a></li>
                  </ul>
          </div>
     </div>';

我只想要下面这样的按钮标签

         <button onclick="setLocation('')" class="button btn-cart" title="Add to Cart" type="button"><span><span>Add to Cart</span></span></button>

什么是preg_match_all expression

您可以尝试以下方法：

$pattern = '/(<button.*)/';
$result = preg_match($html, $pattern);

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你读过吗？对HTML使用RegExp是一个非常糟糕的主意。可能的重复使用zend_dom_查询是否可能？