用符号或符号替换附加的 html 标记值

Question

<span class="fwb">Harry and David</span>

<span class="fcg">Business Intelligence Developer/Analyst</span> 
<span class="fcg">Oct 1998 to present</span>
<span class="fcg">Medford, Oregon</span>

<span class="fsm fwn fcg">Creative writing</span>

In my html content 
<span class="fwb"> occured more than 4 times, 
<span class="fcg"> occured more than 10 times, 
<span class="fsm fwn fcg">Creative writing</span> occured  more than 5 times. 

使用 php reg 表达式或 DOMDocument() 我需要用 $ 符号替换所有要附加的内容。

例如：

<span class="fwb">Harry and David</span> to be replaced by <span class="fwb">Harry and David$</span>

<span class="fcg">Business Intelligence Developer/Analyst</span> to be replaced by       <span class="fcg">Business Intelligence Developer/Analyst$</span>

Answer 1

从您的代码示例 (?) 中很难理解，但我相信您希望在每个 <span> 标记的末尾附加一个 $ 符号。使用DomDocument 执行此操作：

$str = '
<span class="fwb">Harry and David</span>
<span class="fcg">Business Intelligence Developer/Analyst</span>
';

$dom = new DomDocument();
$dom->loadHTML($str);

$spans = $dom->getElementsByTagName('span');
foreach ($spans as $span) {
  $span->nodeValue = $span->nodeValue . '$';
  echo $dom->saveHTML($span) . "\n";
}

正如你所说，你也可以像这样使用preg_replace()：

$str = '
<span class="fwb">Harry and David</span>
<span class="fcg">Business Intelligence Developer/Analyst</span>
';

$p = '{(<span[^>]*>)([^<]+)(</span>)}';
$r = '$1$2\$$3';
echo preg_replace($p, $r, $str);

此正则表达式示例将$ 附加到主题 HTML 文本中每个 span 节点的末尾。