(PHP 8 >= 8.3.0)
DOMElement::toggleAttribute — Toggle attribute
Toggle the attribute.
Example #1 DOMElement::toggleAttribute() example
<?php$dom = new DOMDocument();$dom->loadXML("<?xml version='1.0'?><container selected=\"\"/>");var_dump($dom->documentElement->toggleAttribute('selected'));echo $dom->saveXML() . PHP_EOL;var_dump($dom->documentElement->toggleAttribute('selected'));echo $dom->saveXML();?>
The above example will output:
bool(false) <?xml version="1.0"?> <container/> bool(true) <?xml version="1.0"?> <container selected=""/>