3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $num = 1; define("ONE",$num); //error unexpected '$num': const ONEFUN = $num; var_dump(ONE); define("ONEZ",1); const ONEFUNZ = 1; var_dump(ONEZ, ONEFUNZ); define("ARR",[1,2,3]); const BLA = [1,2,3]; var_dump(ARR,BLA);
based on s5jVO
Output for 7.0.0 - 7.1.0
int(1) int(1) int(1) array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) }
Output for hhvm-3.10.0 - 3.12.0
int(1) int(1) int(1) Warning: Constants may only evaluate to scalar values in /in/0oG6c on line 12 Warning: Constants may only evaluate to scalar values in /in/0oG6c on line 13 Notice: Use of undefined constant ARR - assumed 'ARR' in /in/0oG6c on line 14 Notice: Use of undefined constant BLA - assumed 'BLA' in /in/0oG6c on line 14 string(3) "ARR" string(3) "BLA"
Output for 5.6.0 - 5.6.28
int(1) int(1) int(1) Warning: Constants may only evaluate to scalar values in /in/0oG6c on line 12 Notice: Use of undefined constant ARR - assumed 'ARR' in /in/0oG6c on line 14 string(3) "ARR" array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) }
Output for 5.4.0 - 5.5.38
Fatal error: Arrays are not allowed as constants in /in/0oG6c on line 13
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/0oG6c on line 12
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_CONST in /in/0oG6c on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CONST in /in/0oG6c on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/0oG6c on line 9
Process exited with code 255.