DOMElement
PHP Manual

DOMElement::toggleAttribute

Toggle attribute

Description

public bool DOMElement::toggleAttribute(string $qualifiedName, boolnull $force = null)

Toggle the attribute.

Parameters

qualifiedName

The qualified name of the attribute.

force

  • if null, the function will toggle the attribute.
  • if true, the function adds the attribute.
  • if false, the function removes the attribute.

Return Values

Returns true if the attribute is present after finishing the call, false otherwise.

Examples

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=""/>