3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); class A { public function foo(int $a, float $b) { } } class B extends A { public function foo($a, $b) { } } $b = new B(); $b->foo('1', '2');
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Warning: Declaration of B::foo($a, $b) should be compatible with A::foo(int $a, float $b) in /in/1mYHb on line 9
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Warning: Unsupported declare 'strict_types' in /in/1mYHb on line 2 Strict Standards: Declaration of B::foo() should be compatible with A::foo(int $a, float $b) in /in/1mYHb on line 9
Output for 5.3.0 - 5.3.29
Warning: Unsupported declare 'strict_types' in /in/1mYHb on line 2 Strict Standards: Declaration of B::foo() should be compatible with that of A::foo() in /in/1mYHb on line 9
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Strict Standards: Declaration of B::foo() should be compatible with that of A::foo() in /in/1mYHb on line 9
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/1mYHb on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/1mYHb on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/1mYHb on line 4
Process exited with code 255.
preferences:
251.63 ms | 401 KiB | 461 Q