3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 1; $a = $x << 32; echo $a . ' '; echo $x * pow(2, 32);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.24, 8.3.0 - 8.3.12
4294967296 4294967296
preferences:
81.24 ms | 407 KiB | 5 Q