3v4l.org

run code in 300+ PHP versions simultaneously
<?php trait T { abstract public function test(int $x); } class C { use T; public function test(string $x) {} }
Output for 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
Fatal error: Declaration of C::test(string $x) must be compatible with T::test(int $x) in /in/SeVK3 on line 10
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 C::test(string $x) must be compatible with T::test(int $x) in /in/SeVK3 on line 10
Process exited with code 255.
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33

preferences:
149.05 ms | 402 KiB | 191 Q