例如
我要匹配出来一个HTML标签的class 或者 id 是什么。。(有ID拿ID,没有就拿CLASS)
最好也能匹配出来到底是div还是span还是其它
回复讨论(解决方案)
提供一个jQuery的解决方式
<script> <br /> function getTagInfo(e){ <br /> var str=''; <br /> if(jQuery(e).attr('id')){ <br /> str += 'id:'+jQuery(e).attr('id'); <br /> }else if(jQuery(e).attr('class')){ <br /> str += 'class:'+jQuery(e).attr('class'); <br /> <br /> }else{ <br /> str += '既没设置id也没设置class属性'; <br /> } <br /> str += '\ntagName:'+jQuery(e).get(0).tagName; <br /> alert(str); <br /> } <br /> </script>
点我试试
刚刚没注意将其写入到源代码中,使得格式错乱,看如下:
function getTagInfo(e){ var str=''; if(jQuery(e).attr('id')){ str += 'id:'+jQuery(e).attr('id'); }else if(jQuery(e).attr('class')){ str += 'class:'+jQuery(e).attr('class'); }else{ str += '既没设置id也没设置class属性'; } str += '\ntagName:'+jQuery(e).get(0).tagName; alert(str);}
<div id='myDivId' class="myDivClass" onclick="getTagInfo(this)">点我</div><span id='mySpanId' class="mySpanClass" onclick="getTagInfo(this)">点我</span>
$html = '<div id="myid" class="myclass"></div>';$dom = new DOMDocument();@$dom->loadHTML($html);$x = new DOMXPath($dom); foreach($x->query("//div") as $node)//如果要span的话,//div 换成 //span { echo $node->getAttribute("id"); echo '<br />'; echo $node->getAttribute("class");}
我也没看清楚,原来span或者div是不一定的,那就换 //* 然后 nodeName 获取HTML标签名。
<?php$html = '<div id="myid" class="myclass"></div>';$dom = new DOMDocument();@$dom->loadHTML($html);$x = new DOMXPath($dom); foreach($x->query("//*") as $node) { echo $node->getAttribute("id"); //myid echo '<br />'; echo $node->getAttribute("class"); //myclass echo '<br />'; echo $node->nodeName; // div} ?>
[/code]
用PHPQUERY 可以实现吗
[/code]
用PHPQUERY 可以实现吗
sorry!PHPQUERY我没接触过

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