3v4l.org

run code in 500+ PHP versions simultaneously
<?php $a = 5; $b = $a++-++$a; echo $b; // -2 echo $a; // 7 // This, sadly, doesn't compile //$b = $a+++++$a; $a = 5; $b = $a++ + ++$a; // 12 echo $b; // 12 echo $a; // 7
Output for 8.2.31 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
-27127

preferences:
28.08 ms | 1151 KiB | 7 Q