3v4l.org

run code in 300+ PHP versions simultaneously
<?php $doc = new DOMDocument; $doc->loadHTML('<html><body id="x"><div id="y"></div></body></html>'); $body = $doc->getElementById('x'); $div = $doc->getElementById('y'); $body->removeChild($div); echo '1: ' . ( $doc->getElementById('y') ? $doc->getElementById('y')->tagName : 'null' ) . PHP_EOL; $div->setIdAttribute( 'id', true ); echo '2: ' . ( $doc->getElementById('y') ? $doc->getElementById('y')->tagName : 'null' ) . PHP_EOL;
based on GXaLf
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.21, 7.4.0 - 7.4.10, 8.0.0alpha1 - beta3
1: div 2: null
Output for 5.0.2 - 5.0.5, 5.1.0 - 5.1.6
1: div Warning: DOMElement::setIdAttribute(): Not yet implemented in /in/UQYTG on line 9 2: div
Output for 5.0.0 - 5.0.1
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/UQYTG on line 8 1: divPHP_EOL Warning: DOMElement::setIdAttribute(): Not yet implemented in /in/UQYTG on line 9 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/UQYTG on line 10 2: divPHP_EOL
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/UQYTG on line 8
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
Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/UQYTG on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/UQYTG on line 8
Process exited with code 255.