Online PHP editor | output for UPrsr

@ 2018-09-14T05:12:04Z

<?php

$html = <<<'HTML'
<article>
	<p rel="#" src="#">aaaaaa</p>
	<p href="#" bla="#" bla2="#">bbbbbb</p>
</article>
HTML;

$dom = new DOMDocument;
@$dom->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$xpath = new DomXPath($dom);
$elements = $xpath->query('//article/*');

$allowedAttributes = ['src', 'href'];
foreach($elements as $element) {
	for( $i = $element->attributes->length; --$i >= 0; ) {
		if( ! in_array( $element->attributes->item($i)->name, $allowedAttributes ) ) {
			$element->removeAttribute($element->attributes->item($i)->name);
		}
	}
}
echo $dom->saveHTML();

Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13: <article> <p src="#">aaaaaa</p> <p href="#">bbbbbb</p> </article>
Output for 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/UPrsr on line 15
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Parse error: syntax error, unexpected T_SL in /in/UPrsr on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected T_SL in /in/UPrsr on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/UPrsr on line 3
Process exited with code 255.

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