PHP enum_exists() Function

PHP enum_exists() Function

Last Updated : 09 Mar, 2023

The enum_exists() is an inbuilt function in PHP that checks whether the enum is defined or not in the PHP script.

Syntax:

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

Parameters: This function has two parameters.

$enum: The enum name.The name is match in an insensitive manner.
$autoload: This parameter specifies whether to call __autoload by default.

Return Values:

It returns "true" if the enum is defined otherwise it will return "false".

Example 1: This code demonstrates the enum_exists() function.

PHP

<?php
  
enum Season { 
    case Spring; 
    case Winter;
}

if(enum_exists(Season::class)){
    echo "Season enum is defined" ;
} else {
    echo "Season enum is not defined" ;
}

?>

Output:

Season enum is defined

Example 2: This is another example of the enum_exists() function.

PHP

<?php

if(enum_exists(Season::class)){
    echo "Season enum is defined" ;
} else {
    echo "Season enum is not defined" ;
}

?>

Output:

Season enum is not defined

Reference: https://www.php.net/manual/en/function.enum-exists.php

PHP enum_exists() Function

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