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<?php enum E: string { case A = 'a'; case B = 'b'; case C = 'c'; case D = 'd'; } var_dump(in_array(E::B, E::cases())); var_dump(array_unique(E::cases())); var_dump(array_unique(E::cases(), SORT_REGULAR)); ?>
Output for 8.2.31 - 8.2.32, 8.3.5 - 8.3.33, 8.4.9 - 8.4.24, 8.5.3 - 8.5.9
bool(true) Fatal error: Uncaught Error: Object of class E could not be converted to string in /in/q9iGl:12 Stack trace: #0 /in/q9iGl(12): array_unique(Array) #1 {main} thrown in /in/q9iGl on line 12
Process exited with code 255.
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