DOMNode::isEqualNode(): Not yet implemented - php

Question

I made this function in php to check if a parent XML has already got a xml to insert it or not :
function has_xml_node( \DOMElement $needle, \DOMElement $node ) {
if( $node->hasChildNodes() ){
foreach ( $node->childNodes as $childNode ) {
if( $needle->isEqualNode( $childNode ) ){
return true;
}
}
}
return false;
}
I got this php error :
DOMNode::isEqualNode(): Not yet implemented in ...
How can I fix this ?

Answer 1

I found the solution here.
Use $needle->isSameNode( $childNode );
BUT it seems to check 'baseURI' as well so if you have two same tags but from different xml files, $needle->isSameNode( $childNode ); return false.
I made a function to work around this problem.
function is_same_node( \DOMNode $node_to_compare, \DOMNode $node_refered, $with_attributes = true ) {
if( $node_to_compare->tagName !== $node_refered->tagName )
return false;
if( $node_to_compare->nodeValue !== $node_refered->nodeValue )
return false;
if( $node_to_compare->prefix !== $node_refered->prefix )
return false;
if( $with_attributes ){
if( !$node_to_compare->hasAttributes() && $node_refered->hasAttributes() ){
return false;
}else{
if( !$node_refered->hasAttributes() && $node_to_compare->hasAttributes() ){
return false;
}else{
foreach ( $node_to_compare->attributes as $attribute ){
$find_attribute_with_same_value = false;
foreach ( $node_refered->attributes as $attribute_refered ){
if(
$attribute_refered->name === $attribute->name
&& ( $attribute_refered->value === $attribute->value )
){
$find_attribute_with_same_value = true;
}
}
if( !$find_attribute_with_same_value )
return false;
}
}
}
}
return true;
}