3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo() {} function Foo() {}
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.29, 7.1.0 - 7.1.16, 7.2.0 - 7.2.4
Fatal error: Cannot redeclare Foo() (previously declared in /in/bpkds:3) in /in/bpkds on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Fatal error: Cannot redeclare foo() (previously declared in /in/bpkds:3) in /in/bpkds on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot redeclare foo() (previously declared in /in/bpkds:3) in /in/bpkds on line 5

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287.72 ms | 1386 KiB | 255 Q