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run code in 300+ PHP versions simultaneously
<?php abstract class Foo { } class FooExtended extends Foo { } abstract class AbstractTest { abstract function test() : Foo; } class TestImpl extends AbstractTest { function test() : FooExtended { return new FooExtended(); } } $t = new TestImpl();
Output for 7.4.3 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
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
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.6, 7.2.29 - 7.2.33, 7.3.16 - 7.3.33
Fatal error: Declaration of TestImpl::test(): FooExtended must be compatible with AbstractTest::test(): Foo in /in/UsYZS on line 25
Process exited with code 255.
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