3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class A{const A = true;const B = false;}$a = array(true => true,false => false,A::A => A::A,A::B => A::B,);var_dump($a, array_key_exists(true, $a), array_key_exists(A::A, $a));
based on 9YtYq
Output for 5.0.0 - 7.1.0
Warning: array_key_exists(): The first argument should be either a string or an integer in /in/rHCCA on line 2 Warning: array_key_exists(): The first argument should be either a string or an integer in /in/rHCCA on line 2 array(2) { [1]=> bool(true) [0]=> bool(false) } bool(false) bool(false)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/rHCCA on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/rHCCA on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/rHCCA on line 2
Process exited with code 255.