Fatal error: Uncaught Error: Call to undefined function strtouppper() in /in/LSLYB:4
Stack trace:
#0 [internal function]: {closure}('abc')
#1 /in/LSLYB(4): array_map(Object(Closure), Array)
#2 {main}
thrown in /in/LSLYB on line 4
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Call to undefined function strtouppper() in /in/LSLYB on line 4
Process exited with code 255.