/**
* Return element as XML string.
*
* @return string The element as XML string.
* @throws XMLException if the element isn't a child of a DOMDocument.
*/
public function toXML()
{
if ($this->ownerDocument === null) {
throw new XMLException('XMLElement has no owner document');
}
return $this->ownerDocument->saveXML($this);
}
/**
* Test with the `ArrayAccess` interface if an attribute can be unset.
*/
public function testOffsetUnset()
{
$doc = new XMLDocument();
$config = $doc->root('config');
$config['attr'] = true;
unset($config['attr']);
$this->assertFalse(isset($config['attr']));
}
/**
* Test if the `toString` method returns a node value as string.
*/
public function testToStringReturnsStringValue()
{
$doc = new XMLDocument();
$doc->root('config')->attribute('email', '*****@*****.**');
$this->assertSame('*****@*****.**', $doc('#/config/@email')->toString());
}
