Fatal error: Uncaught ErrorException: Undefined variable: test in /in/Z0bT9:8
Stack trace:
#0 /in/Z0bT9(8): {closure}(8, 'Undefined varia...', '/in/Z0bT9', 8, Array)
#1 /in/Z0bT9(11): test()
#2 {main}
Next TypeError: Return value of test() must be of the type string, null returned in /in/Z0bT9:8
Stack trace:
#0 /in/Z0bT9(11): test()
#1 {main}
thrown in /in/Z0bT9 on line 8
Process exited with code 255.