enum_exists
(PHP 8 >= 8.1.0)
enum_exists — Checks if the enum has been defined
Description
enum_exists(string
$enum, bool $autoload = true): boolThis 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 call __autoload by default.
Return Values
Returns true if enum is a defined enum,
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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