3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Foo { const BAR = [ 3 => 'qux', 4 => 'bang', 7 => 'theta', 9 => 'epsilon' ]; const BAZ = FOO[4]; } var_dump(Foo::BAZ);
Output for 5.6.7 - 7.1.0
Notice: Use of undefined constant FOO - assumed 'FOO' in /in/Q8caF on line 14 Notice: Uninitialized string offset: 4 in /in/Q8caF on line 14 string(0) ""
Output for 5.4.0 - 5.5.35
Fatal error: Arrays are not allowed in class constants in /in/Q8caF on line 9
Process exited with code 255.
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Q8caF on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/Q8caF on line 4
Process exited with code 255.
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/Q8caF on line 4
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/Q8caF on line 4
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/Q8caF on line 4
Process exited with code 255.