PHP域XPath问题
我试图用html标记解析文本块，但我遇到了一些问题PHP域XPath问题,php,dom,xpath,Php,Dom,Xpath,我试图用html标记解析文本块，但我遇到了一些问题 <?php libxml_use_internal_errors(true); $html = ' <html> <body> <div> Message <b>bold</b>, <s>strike</s> </div> <div> <span clas
<?php
libxml_use_internal_errors(true);
$html = '
<html>
<body>
<div>
Message <b>bold</b>, <s>strike</s>
</div>
<div>
<span class="how">
<a href="link" title="text">Link</a>, <b> BOLD </b>
</span>
</div>
</body>
</html>
';
$dom = new DOMDocument();
$dom->preserveWhiteSpace = false;
$dom->strictErrorChecking = false;
$dom->recover = true;
$dom->loadHTML($html);
function getMessages($element, $xpath)
{
$messages = array();
$children = $element->childNodes;
foreach ($children as $child)
{
if(strtolower($child->nodeName) == 'div')
{
// my functions
}
else
if ($child->nodeType == XML_TEXT_NODE)
{
$text = trim(DOMinnerHTML($element));
if($text)
{
$messages[] = array('type' => 'text', 'text' => $text);
}
}
}
return $messages;
}
function DOMinnerHTML($element)
{
$innerHTML = null;
$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;
}
$xpath = new DOMXPath($dom);
$messagesXpath = $xpath->query("//div");
$messages = array();
$i = 0;
foreach($messagesXpath as $message)
{
$messages[] = getMessages($message, $xpath);
$i++;
if ($i == 2)
break;
}
var_dump($messages);
我认为您误解了哪些元素是被迭代的，因为您选择了所有
getMessagesgetMessagesXML\u TEXT\u节点<div>
Message <b>bold</b>, <s>strike</s>
</div>
以上所有的代码对于这个问题都是必要的吗？你能把它减少到相关的部分吗？太多了。顺便说一句，你为什么不使用herdoc？@SalmanPK，这对问题有什么关系？
if ($child->nodeType == XML_TEXT_NODE)
{
$text = trim(DOMinnerHTML($element));
if($text)
{
$messages[] = array('type' => 'text', 'text' => $text);
}
}
<div>
Message <b>bold</b>, <s>strike</s>
</div>
<?php
libxml_use_internal_errors(true);
$html = <<<HTML
<html>
<body>
<div>
Message <b>bold</b>, <s>strike</s>
</div>
<div>
<span class="how">
<a href="link" title="text">Link</a>, <b> BOLD </b>
</span>
</div>
</body>
</html>
HTML;
$dom = new DOMDocument();
$dom->preserveWhiteSpace = false;
$dom->strictErrorChecking = false;
$dom->recover = true;
$dom->loadHTML($html);
function getMessages($allDivs) {
$messages = array();
foreach ($allDivs as $div) {
if ($div->nodeType == XML_ELEMENT_NODE) {
$messages[] = trim(DOMinnerHTML($div));
}
}
return $messages;
}
function DOMinnerHTML($element) {
$innerHTML = null;
$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;
}
$xpath = new DOMXPath($dom);
$messagesXpath = $xpath->query("//div");
$messages[] = getMessages($messagesXpath);
print_r($messages);
?>