3v4l.org

run code in 300+ PHP versions simultaneously
<?php function add(int $a, int $b): int { return $a + $b; } $c = Closure::fromCallable('add'); $r = new ReflectionFunction($c); echo $r; $c = fn(...$args) => add(...$args); $r = new ReflectionFunction($c); echo $r;
Output for 8.4.1 - 8.4.12
Closure [ <user> function add ] { @@ /in/XBOmJ 3 - 3 - Parameters [2] { Parameter #0 [ <required> int $a ] Parameter #1 [ <required> int $b ] } - Return [ int ] } Closure [ <user> function {closure:/in/XBOmJ:9} ] { @@ /in/XBOmJ 9 - 9 - Parameters [1] { Parameter #0 [ <optional> ...$args ] } }
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25
Closure [ <user> function add ] { @@ /in/XBOmJ 3 - 3 - Parameters [2] { Parameter #0 [ <required> int $a ] Parameter #1 [ <required> int $b ] } - Return [ int ] } Closure [ <user> function {closure} ] { @@ /in/XBOmJ 9 - 9 - Parameters [1] { Parameter #0 [ <optional> ...$args ] } }
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW) in /in/XBOmJ on line 9
Process exited with code 255.
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