3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a= 5; $b=10; $a = $a+$b; echo $b=$a-$b . "\n"; echo $a = $a - $b;
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.3.32 - 7.3.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
5 10
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
5 Notice: A non well formed numeric value encountered in /in/9PjTR on line 7 10
preferences:
265 ms | 402 KiB | 376 Q