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run code in 500+ PHP versions simultaneously
<?php class A1 { public function fn() {} } class B1 extends A1 { public function fn($arg) {} // error is not triggered } interface I {} class A2 { public function fn() {} } class B2 extends A2 implements I { public function fn($arg) {} // error is triggered }
Output for 8.5.0 - 8.5.3
Fatal error: Declaration of B1::fn($arg) must be compatible with A1::fn() in /in/Lpalj on line 7 Stack trace: #0 {main}
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18
Fatal error: Declaration of B1::fn($arg) must be compatible with A1::fn() in /in/Lpalj on line 7
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: Declaration of B1::fn($arg) should be compatible with A1::fn() in /in/Lpalj on line 7 Warning: Declaration of B2::fn($arg) should be compatible with A2::fn() in /in/Lpalj on line 15
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Warning: Declaration of B1::fn($arg) should be compatible with A1::fn() in /in/Lpalj on line 8 Warning: Declaration of B2::fn($arg) should be compatible with A2::fn() in /in/Lpalj on line 14
preferences:
118.44 ms | 1497 KiB | 3 Q