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enum_exists

(PHP 8 >= 8.1.0)

enum_exists — Checks if the enum has been defined

Description

This function checks whether or not the given enum has been defined.

Parameters

enum

The enum name. The name is matched in a case-insensitive manner.

autoload

Whether to autoload if not already loaded.

Return Values

Returns [true](reserved.constants.php#constant.true) if enum is a defined enum,[false](reserved.constants.php#constant.false) otherwise.

Examples

Example #1 enum_exists() example

<?php // Check that the enum exists before trying to use it if (enum_exists(Suit::class)) { $myclass = Suit::Hearts; } ?>

See Also

• function_exists() - Return true if the given function has been defined
• class_exists() - Checks if the class has been defined
• interface_exists() - Checks if the interface has been defined
• get_declared_classes() - Returns an array with the name of the defined classes

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