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<?php trait T { abstract static function values(): array; } class A { use T; static function values() { return 'Worked!'; } } echo A::values(); // print: Worked! abstract class B { use T; } class C extends B { static function values() { return 'Don\'t worked'; } } echo C::values();
Output for 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 A::values() must be compatible with T::values(): array in /in/38lmA on line 9
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 A::values() must be compatible with T::values(): array in /in/38lmA on line 9
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Worked! Fatal error: Declaration of C::values() must be compatible with B::values(): array in /in/38lmA on line 21
Process exited with code 255.
Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Worked! Fatal error: Declaration of C::values() must be compatible with B::values(): array in /in/38lmA on line 20
Process exited with code 255.
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