3v4l.org

run code in 500+ PHP versions simultaneously
<?php function foo(int|float $n) { var_dump(abs($n)); } foo(-1); foo(-2.1); foo("-3"); foo("-4.1");
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.8
Parse error: syntax error, unexpected '|', expecting variable (T_VARIABLE) in /in/Dp4VH on line 3
Process exited with code 255.
Output for 8.1.23 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
int(1) float(2.1) int(3) float(4.1)
preferences:
31.61 ms | 1140 KiB | 9 Q