3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.17, 8.4.1 - 8.4.4
string(6) "foobar" Fatal error: Uncaught Error: Undefined constant Foo::BAR in /in/WH5Xl:9 Stack trace: #0 /in/WH5Xl(26): AbstractFoo->__construct() #1 {main} thrown in /in/WH5Xl on line 9
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
string(6) "foobar" Fatal error: Uncaught Error: Undefined class constant 'BAR' in /in/WH5Xl:9 Stack trace: #0 /in/WH5Xl(26): AbstractFoo->__construct() #1 {main} thrown in /in/WH5Xl on line 9
Process exited with code 255.
preferences:
93.86 ms | 412 KiB | 5 Q