Fatal error: Uncaught TypeError: Return value of thing() must be an instance of void, none returned in /in/qCCmA:6
Stack trace:
#0 /in/qCCmA(8): thing()
#1 {main}
thrown in /in/qCCmA on line 6
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Warning: Unsupported declare 'strict_types' in /in/qCCmA on line 1
Parse error: syntax error, unexpected ':', expecting '{' in /in/qCCmA on line 3
Process exited with code 255.