enum_exists
(PHP 8 >= 8.1.0)
enum_exists — Checks if the enum has been defined
Descrizione
This function checks whether or not the given enum has been defined.
Elenco dei parametri
-
enum -
The enum name. The name is matched in a case-insensitive manner.
-
autoload -
Whether to autoload if not already loaded.
Valori restituiti
Returns true if enum is a defined enum,
false otherwise.
Esempi
Example #1 enum_exists() example
<?php
// Check that the enum exists before trying to use it
if (enum_exists(Suit::class)) {
$myclass = Suit::Hearts;
}
?>Vedere anche:
- function_exists() - Return true if the given function has been defined
- class_exists() - Verifica se la classe è stata definita
- interface_exists() - Checks if the interface has been defined
- get_declared_classes() - Restituisce un array con i nomi delle classi definite
add a note
User Contributed Notes
There are no user contributed notes for this page.
