3v4l.org

run code in 300+ PHP versions simultaneously
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Output for 8.3.0 - 8.3.18, 8.4.1 - 8.4.4
Fatal error: Uncaught Error: Undefined constant self::UNDEFINED in /in/X8gXu:5 Stack trace: #0 /in/X8gXu(11): [constant expression]() #1 /in/X8gXu(11): ReflectionParameter->getDefaultValue() #2 {main} thrown in /in/X8gXu on line 5
Process exited with code 255.
Output for 8.2.0 - 8.2.27
Fatal error: Uncaught Error: Undefined constant self::UNDEFINED in /in/X8gXu:5 Stack trace: #0 /in/X8gXu(11): ReflectionParameter->getDefaultValue() #1 {main} thrown in /in/X8gXu on line 5
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.31
Fatal error: Uncaught Error: Undefined constant self::UNDEFINED in /in/X8gXu:11 Stack trace: #0 /in/X8gXu(11): ReflectionParameter->getDefaultValue() #1 {main} thrown in /in/X8gXu on line 11
Process exited with code 255.
Output for 7.0.0 - 7.0.25, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Undefined class constant 'self::UNDEFINED' in /in/X8gXu:11 Stack trace: #0 /in/X8gXu(11): ReflectionParameter->getDefaultValue() #1 {main} thrown in /in/X8gXu on line 11
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.30
Fatal error: Undefined class constant 'self::UNDEFINED' in /in/X8gXu on line 11
Process exited with code 255.

preferences:
133.15 ms | 416 KiB | 5 Q