3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "Unsigned and Signed:\n"; $offset = abs(~0xffffffff) + 2 + 4294967295; printf("%u\n",PHP_INT_MAX); printf("%d\n",~$offset);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Unsigned and Signed: 9223372036854775807 -8589934594
preferences:
243.39 ms | 404 KiB | 317 Q