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Error Identifier: enum.destructor

Every error reported by PHPStan has an error identifier. Here’s a list of all error identifiers. In PHPStan Pro you can see the error identifier next to each error and filter errors by their identifiers.

Code example #

<?php declare(strict_types = 1); // lint >= 8.1

enum Suit
{
	case Hearts;
	case Diamonds;

	public function __destruct()
	{
	}
}

Why is it reported? #

PHP enums cannot have destructors. Enum cases are singleton values managed by the engine and are not subject to normal object lifecycle. Defining __destruct in an enum is a compile-time error in PHP.

How to fix it #

Remove the destructor from the enum:

 enum Suit
 {
 	case Hearts;
 	case Diamonds;
-
-	public function __destruct()
-	{
-	}
 }

If cleanup logic is needed, move it to a separate class that uses the enum rather than defining it on the enum itself.

Non-ignorable error #

This error cannot be ignored using @phpstan-ignore or the ignoreErrors configuration. Non-ignorable errors indicate code that would cause a crash or a fatal error at runtime, or a fundamental problem in the analysed code that must be addressed.

Rules that report this error #

• PHPStan\Rules\Classes\EnumSanityRule [1]

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