3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $query = new SimpleXMLElement('<query />'); echo json_encode($query);
based on rNNAI
Output for 5.2.0 - 7.2.0
{}
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/mpRLm on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: simplexmlelement in /in/mpRLm on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: simplexmlelement in /in/mpRLm on line 2