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run code in 300+ PHP versions simultaneously
<?php $xmlDoc = new DOMDocument(); $xmlDoc->loadXML("<question><answer qtype='MCQ'>C</answer><grade>95</grade></question>"); $tag = $xmlDoc.getElementsByTagName('answer'); ?>
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.21, 8.3.0 - 8.3.9
Fatal error: Uncaught Error: Call to undefined function getElementsByTagName() in /in/qn2tb:4 Stack trace: #0 {main} thrown in /in/qn2tb on line 4
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Fatal error: Call to undefined function getElementsByTagName() in /in/qn2tb on line 4
Process exited with code 255.

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