Online PHP editor | output for K7Lg1

Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: 4,560 monkeys on 123 trees make 37.073 monkeys per tree 4.560 Affen auf 123 Bäumen sind 37,073 Affen pro Baum
Output for 8.0.13: Fatal error: Uncaught Error: Class "MessageFormatter" not found in /in/K7Lg1:2 Stack trace: #0 {main} thrown in /in/K7Lg1 on line 2
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 7.4.33: Fatal error: Uncaught Error: Class 'MessageFormatter' not found in /in/K7Lg1:2 Stack trace: #0 {main} thrown in /in/K7Lg1 on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45: Fatal error: Class 'MessageFormatter' not found in /in/K7Lg1 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9: Fatal error: Undefined class name 'messageformatter' in /in/K7Lg1 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Undefined class name 'messageformatter' in /in/K7Lg1 on line 2