3v4l.org

run code in 300+ PHP versions simultaneously
<?php $yes = true; if ($yes) echo 'yes'; if ($no) echo 'no';
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
yes Warning: Undefined variable $no in /in/e3dmp on line 6
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.29 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
yes Notice: Undefined variable: no in /in/e3dmp on line 6
Output for 7.3.32 - 7.3.33, 7.4.26
yes
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
yes Notice: Undefined variable: no in /in/e3dmp on line 6
preferences:
188.61 ms | 402 KiB | 314 Q