3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function foo($a) { $page1 = isset($a['page']) ? $a['page'] : 1; echo 'P: ', $page1, "\n"; $page2 = $a['page'] ?? 1; echo 'P: ', $page2, "\n"; echo $page1 == $page2 ? 't' : 'n'; } $a = array('page' => 3); foo($a); $a = array(); foo($a); $a = array('page' => Null); foo($a); $a = array('page' => 0); foo($a); ?>
based on Akqad
Output for hhvm-3.12.14 - 3.22.0, 7.0.0 - 7.2.12
P: 3 P: 3 tP: 1 P: 1 tP: 1 P: 1 tP: 0 P: 0 t
Output for 5.5.0 - 5.6.38
Parse error: syntax error, unexpected '?' in /in/SpIav on line 8
Process exited with code 255.