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run code in 150+ php & hhvm versions
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<?php $dom = new DOMDocument(); $dom->loadXml('<foo><bar/><bar/></foo>'); var_dump(isset($dom->documentElement->parentNode), get_class($dom->documentElement->parentNode)); var_dump(isset($dom->documentElement->firstChild->parentNode), get_class($dom->documentElement->firstChild->parentNode)); var_dump(isset($dom->documentElement->firstChild->nextSibling), get_class($dom->documentElement->firstChild->nextSibling)); var_dump(isset($dom->documentElement->lastChild->previousSibling), get_class($dom->documentElement->lastChild->previousSibling));
Output for 5.1.0 - 7.1.0
bool(true) string(11) "DOMDocument" bool(true) string(10) "DOMElement" bool(true) string(10) "DOMElement" bool(true) string(10) "DOMElement"
Output for 5.0.0 - 5.0.5
bool(false) string(11) "DOMDocument" bool(false) string(10) "DOMElement" bool(false) string(10) "DOMElement" bool(false) string(10) "DOMElement"
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: domdocument in /in/jQifI on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: domdocument in /in/jQifI on line 3