Enumeration’s Cases Comparisons¶

By Frederic Bouchery

<?php

enum A: string
{
    case Foo = 'bar';
}

enum B: string
{
    case Foo = 'bar';
}

echo A::Foo === B::Foo ? 'Yes' : 'No';

Enumeration cases are different when the enumeration are different, not when the value of the case is different. It is a difference with using constants for enumerations.

To compare their value, the comparison must be done with the ‘value’ property, not the object.

See Also¶

Backed enumeration (PHP manual)
Enum Case Comparison [Try me]

PHP Features¶

Last updated: 14 July 2026