3v4l.org

run code in 300+ PHP versions simultaneously
<?php $L = 400; $T = 1.5; $KF = 0.75; $test = ($L + 2 * $KF - ($L/2 + 2*$Т))/2; echo $test;
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $Т in /in/ugdfl on line 7 100.75
preferences:
97.82 ms | 402 KiB | 89 Q