我想用phpquery用<span>
替换所有<p>
标记。我的代码怎么了?它找到span
但replaceWith函数没有做任何事情。
$event = phpQuery::newDocumentHTML(file_get_contents('event.html'));
$formatted_event = $event->find('span')->replaceWith('<p>');
本文档表明这是可能的:
http://code.google.com/p/phpquery/wiki/Manipulation#Replacing
http://api.jquery.com/replaceWith/
这是在代码中返回的带有和不带
->replaceWith('<p></p>')
的html:<span class="Subhead1">Event 1<br></span><span class="Subhead2">Event 2<br>
August 12, 2010<br>
2:35pm <br>
Free</span>
最佳答案
如果你不介意一个简单的domdocument解决方案(domdocument是在phpquery的框架下用来解析html片段的),我刚才做了类似的事情。我修改了代码以满足您的需要:
$document = new DOMDocument();
// load html from file
$document->loadHTMLFile('event.html');
// find all span elements in document
$spanElements = $document->getElementsByTagname('span');
$spanElementsToReplace = array();
// use temp array to store span elements
// as you cant iterate a NodeList and replace the nodes
foreach($spanElements as $spanElement) {
$spanElementsToReplace[] = $spanElement;
}
// create a p element, append the children of the span to the p element,
// replace span element with p element
foreach($spanElementsToReplace as $spanElement) {
$p = $document->createElement('p');
foreach($spanElement->childNodes as $child) {
$p->appendChild($child->cloneNode(true));
}
$spanElement->parentNode->replaceChild($p, $spanElement);
}
// print innerHTML of body element
print DOMinnerHTML($document->getElementsByTagName('body')->item(0));
// --------------------------------
// Utility function to get innerHTML of an element
// -> "stolen" from: http://www.php.net/manual/de/book.dom.php#89718
function DOMinnerHTML($element) {
$innerHTML = "";
$children = $element->childNodes;
foreach ($children as $child)
{
$tmp_dom = new DOMDocument();
$tmp_dom->appendChild($tmp_dom->importNode($child, true));
$innerHTML.=trim($tmp_dom->saveHTML());
}
return $innerHTML;
}
也许这可以让你在PHPQuQuy中进行替换的正确方向?
编辑:
我给了replace的jquery文档另一个外观,在我看来,您必须传递整个html片段,您希望它是您新的、被替换的内容。
这段代码对我有效:
$event = phpQuery::newDocumentHTML(...);
// iterate over the spans
foreach($event->find('span') as $span) {
// make $span a phpQuery object, otherwise its just a DOMElement object
$span = pq($span);
// fetch the innerHTMLL of the span, and replace the span with <p>
$span->replaceWith('<p>' . $span->html() . '</p>');
}
print (string) $event;
我找不到在一行中使用链式方法调用的方法。