Question

鉴于此DOM

InputFile inputFile = (InputFile) ctx.getBean("inputFile");

我正在尝试使用此表达式preg_match_all html标记：

$html=<<<'EOD'
<div class='container clickable' data-param='{"footer":"<div>Bye</div>","info":"We win"}'>
 <img src='a.jpg' />
</div>
<a href='a.html'>The A</a>
<span></span>
<span data-span-param='{"detailTag":"<span class=\"link\">Anything here</span>"}'>
 <a></a>
</span>  
EOD;

此表达式的输出为：

阵列
      （
       [0] =＆gt; ＆LT; div class =＆＃39;容器可点击＆＃39;数据PARAM =＆＃39; {＆＃34;页脚＆＃34;：＆＃34;＆LT; DIV＆GT;
       [1] =＆gt; ＆LT; / DIV＆GT;
       [2] =＆gt; ＆LT; img src =＆＃39; a.jpg＆＃39; /＆GT;
       [3] =＆gt; ＆LT; / DIV＆GT;
       [4] =＆gt; ＆LT; a href =＆＃39; a.html＆＃39;＆gt;
       [5] =＆gt; ＆LT; / A＆GT;
       [6] =＆gt; ＆LT;跨度＆GT;
       [7] =＆gt; ＆LT; /跨度＆GT;
       [8] =＆gt; ＆LT; span data-span-param =＆＃39; {＆＃34; detailTag＆＃34;：＆＃34;＆lt; span class = \＆＃34; link \＆＃34;＆gt;
       [9] =＆gt; ＆LT; /跨度＆GT;
       [10] =＆gt; ＆LT;一个＆GT;
       [11] =＆gt; ＆LT; / A＆GT;
       [12] =＆gt; ＆LT; /跨度＆GT;
      ）

我的预期输出是：

阵列
      （
       [0] =＆gt; ＆LT; div class =＆＃39;容器可点击＆＃39;数据PARAM =＆＃39; {＆＃34;页脚＆＃34;：＆＃34;＆LT; DIV＆GT;再见＆LT; / div＆gt;＆＃34;，＆＃34; info＆＃34;：＆＃34;我们赢了＆＃34;}＆＃39;＆gt;
       [1] =＆gt; ＆LT; img src =＆＃39; a.jpg＆＃39; /＆GT;
       [2] =＆gt; ＆LT; / DIV＆GT;
       [3] =＆gt; ＆LT; a href =＆＃39; a.html＆＃39;＆gt;
       [4] =＆gt; ＆LT; / A＆GT;
       [5] =＆gt; ＆LT;跨度＆GT;
       [6] =＆gt; ＆LT; /跨度＆GT;
       [7] =＆gt; ＆LT; span data-span-param =＆＃39; {＆＃34; detailTag＆＃34;：＆＃34;＆lt; span class = \＆＃34; link \＆＃34;＆gt;此处的任何内容＆lt; /跨度＆GT;＆＃34;}＆＃39;＆GT;
       [8] =＆gt; ＆LT;一个＆GT;
       [9] =＆gt; ＆LT; / A＆GT;
       [10] =＆gt; ＆LT; /跨度＆GT;
      ）

我需要一个表达式的帮助才能解决这个问题。

Answer 1

这将匹配所有html标签，不会捕获用双引号或单引号括起来的标签

<?php
$html=<<<EOD
<div class='container clickable' data-param='{"footer"<div>Bye</div>","info":"We win"}'>
<img src='a.jpg' />
</div>
<a href='a.html'>The A</a>
<span></span>
<span data-span-param='{"detailTag":"<span class=\"link\">Anything here</span>"}'>
<a></a>
</span>
EOD;

$html = preg_replace('~\&lt\;~is','<',$html);
$html = preg_replace('~\&gt\;~is','>',$html);
//$html = preg_replace('~\&quot\;~is','"',$html);
$html = preg_replace('~=\s*\'\s*\'~is','=\'.\'',$html);
$html = preg_replace('~=\s*"\s*"~is','="."',$html);

if(preg_match_all('~((?<==\')(?:.(?!\'))*.)\'|((?<==")(?:.(?!"))*.)"~im',$html,$matchall,PREG_SET_ORDER)){
  foreach($matchall as $m){
    if(preg_match('~\<~is',$m[0],$mtch1)||preg_match('~\>~is',$m[0],$mtch2)){
        $end = $m[0][(strlen($m[0])-1)];
        $replace1 = substr($m[0],0,(strlen($m[0])-1));
        $replace = preg_replace('~"~is','&quot;',$replace1);
        $replace = preg_replace('~<~is','&lt;',$replace);
        $replace = preg_replace('~>~is','&gt;',$replace);
        $html = preg_replace("~".preg_quote(($end.$replace1.$end),'~')."~is",$end.$replace.$end,$html);
    }
  }
}

$tags = array();
if(preg_match_all('~<\s*[\w]+[^>]*>|<\s*/\s*[\w]+\s*>~im',$html,$matchall,PREG_SET_ORDER)){
  foreach($matchall as $m){ 
    $tags[] = $m[0];
  }
}

print_r($tags);
?>

输出：

Array  
(  
[0] => <div class='container clickable' data-param='{&quot;footer&quot;:&quot;&lt;div&gt;Bye&lt;/div&gt;&quot;,&quot;info&quot;:&quot;We win&quot;}'>  
[1] => <img src='a.jpg' />  
[2] => </div>  
[3] => <a href='a.html'>  
[4] => </a>  
[5] => <span>  
[6] => </span>  
[7] => <span data-span-param='{&quot;detailTag&quot;:&quot;&lt;span class=\&quot;link\&quot;&gt;Anything here&lt;/span&gt;&quot;}'>  
[8] => <a>
[9] => </a>  
[10] => </span>  
)

Answer 2

此正则表达式适用于您的代码，无需其他代码：

<\s*(?:/\s*)?\w++(?>[^>'"]++|'[^']+'|"[^"]+")*>

DEMO

Answer 3

我认为解决此问题的最佳方法是使用递归正则表达式。

(?!<\s*>)\<(?:(?>[^<>]+)|(?R))*\>

Demo

preg_match_all html标记，但双引号或单引号中的标记除外

3 个答案: