3v4l.org

run code in 500+ PHP versions simultaneously
<?php echo "PHP " . PHP_VERSION . PHP_EOL; echo "libxml " . LIBXML_DOTTED_VERSION . PHP_EOL . PHP_EOL; $doc = Dom\XMLDocument::createFromString('<root xmlns="urn:a" attr="val"/>'); $doc->documentElement->setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:ns1", "urn:a"); echo "saveXML: " . trim($doc->saveXML()) . PHP_EOL; echo "C14N: " . $doc->C14N() . PHP_EOL;

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.5.70.0090.00817.04
8.5.60.0090.00517.05
8.5.50.0120.00516.85
8.5.30.0220.00817.72
8.4.220.0120.00724.15
8.4.210.0130.00919.81
8.4.90.0050.00418.29
8.3.310.0130.00518.48
8.3.180.0100.00816.65
8.3.50.0060.00216.72
8.2.310.0120.00818.15

preferences:
55.61 ms | 531 KiB | 5 Q