DOMElement::toggleAttribute

(PHP 8 >= 8.3.0)

DOMElement::toggleAttribute — Toggle attribute

说明

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

Toggle the attribute.

参数

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.

返回值

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

示例

示例 #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();
?>

以上示例会输出：

bool(false)
<?xml version="1.0"?>
<container/>

bool(true)
<?xml version="1.0"?>
<container selected=""/>

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