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enum_exists

(PHP 8 >= 8.1.0)

enum_existsChecks if the enum has been defined

Beschreibung

enum_exists(string $enum, bool $autoload = true): bool

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

Parameter-Liste

enum

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

autoload

Whether to call __autoload by default.

Rückgabewerte

Returns true if enum is a defined enum, false otherwise.

Beispiele

Beispiel #1 enum_exists() example

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

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