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我现在有一个看起来像这样的UL名单:PHP排序DOM元素和替换
<ul id="primary-nav">
<li class="navButton" id="amps_off_button" data-order="6">
<span class="navButton-color red"><p>AMPS Off</p></span>
<span class="glare"></span>
</li>
<li class="navButton" id="amps_alarms" data-order="7">
<span class="navButton-color"><p>AMPS Alarms</p></span>
<span class="glare"></span>
</li>
<li class="navButton" id="sysConfig" data-order="3">
<span class="navButton-color"><p>System Configuration</p></span>
<span class="glare"></span></li>
<li class="navButton" id="system" data-order="4">
<span class="navButton-color"><p>System</p></span>
<span class="glare"></span>
</li>
<li class="navButton" id="backBtn" data-order="100">
<span class="navButton-color"><p>BACK</p></span>
<span class="glare"></span>
</li>
<li class="navButton" id="rescan" data-order="101">
<span class="navButton-color"><p>ReScan</p></span>
<span class="glare"></span>
</li>
</ul>
在我的导航类的,我有一个可以调用的函数将被排序的无序列表的顺序数据顺序中的值:
public function setOrder() {
$liNodeList = $this->xpath->query("//ul[@id='primary-nav']//li");
$liNodes = iterator_to_array($liNodeList);
usort($liNodes, array('Navigation', 'sortListByOrderAttr'));
if ($liNodeList->length == count($liNodes)) {
for ($i = 0; $i < $liNodeList->length; $i++) {
$node = $liNodeList->item($i);
$newNode = $liNodes[$i];
$node->parentNode->replaceChild($newNode, $node);
}
}
else echo "error";
}
private static function sortListByOrderAttr($a, $b) {
return (int) $a->getAttribute('data-order') - (int) $b->getAttribute('data-order');
}
由于某些原因,我没有得到正确的列表顺序。相反,输出显示4项,而不是6个项目它应该显示:
<ul id="primary-nav">
<li class="navButton" id="amps_off_button" data-order="6">
<span class="navButton-color red"><p>AMPS Off</p></span>
<span class="glare"></span>
</li>
<li class="navButton" id="amps_alarms" data-order="7">
<span class="navButton-color"><p>AMPS Alarms</p></span>
<span class="glare"></span>
</li>
<li class="navButton" id="backBtn" data-order="100">
<span class="navButton-color"><p>BACK</p></span>
<span class="glare"></span>
</li>
<li class="navButton" id="rescan" data-order="101">
<span class="navButton-color"><p>ReScan</p></span>
<span class="glare"></span>
</li>
</ul>
这里我怀疑我的问题是,我$node->parentNode->replaceChild($newNode, $node);
没有ES布埃诺。也许我需要一个不同的方法来排序呢?帮助赞赏!
你觉得呢'replaceChild'呢? – cHao
不知道你是讽刺还是真实。 – JayZiggaZeus
我真实。那么,Socratically真实。 – cHao