3v4l.org

run code in 300+ PHP versions simultaneously
<?php function fct_add(float $a, float $b): float { return '' . $a + $b; } print fct_add(.1, .2); # float(3)
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
0.3
Output for 7.4.0 - 7.4.33
Deprecated: The behavior of unparenthesized expressions containing both '.' and '+'/'-' will change in PHP 8: '+'/'-' will take a higher precedence in /in/H3Aki on line 3 0.3
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Parse error: syntax error, unexpected ':', expecting '{' in /in/H3Aki on line 2
Process exited with code 255.
preferences:
201.33 ms | 402 KiB | 225 Q