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run code in 300+ PHP versions simultaneously
<?php class A {} class B extends A {} class C extends B {} interface InterfaceTest { public function foo(B $p); } abstract class AbstractTest { public abstract function foo(B $p); } // class TestAbstractContravariance extends AbstractTest { // public function foo(A $p) {} // } //class TestAbstractCovariance extends AbstractTest { // public function foo(C $p) {} //} class TestInterfaceContravariance implements InterfaceTest { public function foo(A $p) {} } class TestInterfaceCovariance implements InterfaceTest { public function foo(C $p) {} }
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Declaration of TestInterfaceCovariance::foo(C $p) must be compatible with InterfaceTest::foo(B $p) in /in/21fYt on line 23
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Declaration of TestInterfaceCovariance::foo(C $p) must be compatible with InterfaceTest::foo(B $p) in /in/21fYt on line 23
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Fatal error: Declaration of TestInterfaceContravariance::foo(A $p) must be compatible with InterfaceTest::foo(B $p) in /in/21fYt on line 18
Process exited with code 255.
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Fatal error: Declaration of TestInterfaceContravariance::foo() must be compatible with InterfaceTest::foo(B $p) in /in/21fYt on line 19
Process exited with code 255.
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