[英]change nodevalue with all childnodes in domelement
我有 html 代碼是這樣的:
<p><i>i_text</i>,p_text</p>
,p_text ,p_text
我想更改此 domelement 中的所有節點值並保留所有標簽
,p_changed_text ,p_changed_text
我的嘗試)
$html = '<p><i>i_text</i> p_text</p>';
$dom = new DOMDocument();
$dom->loadHTML($html);
$dom->preserveWhiteSpace = false;
$dom->validateOnParse = true;
$elements = $dom->getElementsByTagName('*');
foreach ($elements as $element) {
$element->nodeValue = str_replace('_','_changed_',$element->nodeValue);
}
echo($dom->saveHTML());
output
i_changed_text,p_changed_text
此代碼返回正確的文本但不保存子節點$html = '<p><i>i_text</i>,p_text</p>'; $dom = new DOMDocument(); $dom->loadXML($html); $dom->preserveWhiteSpace = false; $dom->validateOnParse = true; $elements = $dom->getElementsByTagName('*'); $elem = $dom->createElement('dfn', 'tag'); $attr = $dom->createAttribute('text'); $attr->value = 'element'; $elem->appendChild($attr); $elements = $dom->getElementsByTagName('*'); foreach ($elements as $element) { while ($element->hasChildnodes()) { $element = $element->childNodes->item(0); } $changed_value = str_replace('_','_changed_',$element->nodeValue); $element->nodeValue = str_replace("tag", $dom->saveXML($elem), $changed_value); } echo ($dom->saveXML());
output
,p_text ,p_text
此代碼保存並更改子節點中的值,但不更改父節點中的文本我的解決方案)
,p_text ,a_text ,another one_text , p_text ,a_text ,另一個 one_text
$html = '<p><i>i_text</i>,p_text<b>,a_text</b>,another one_text</p>';
$dom = new DOMDocument();
$dom->loadXML($html);
$dom->preserveWhiteSpace = false;
$dom->validateOnParse = true;
$elements = $dom->getElementsByTagName('*');
foreach ($elements as $element) {
if($element->hasChildnodes()==true && $element->parentNode->nodeName == '#document'){
foreach($element->childNodes as $element_child){
$element_child->nodeValue = str_replace('_','_changed_', $element_child->nodeValue);
}
}
}
echo ($dom->saveXML());
output
,p_changed_text ,a_changed_text ,another one_changed_text ,p_changed_text , a_changed_text ,另一個_changed_text
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