Title: AbstractEnum::tryFrom
Published: May 20, 2026

---

# AbstractEnum::tryFrom( string $value ): static|null

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/tryfrom/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/tryfrom/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/tryfrom/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/tryfrom/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/tryfrom/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/tryfrom/?output_format=md#wp--skip-link--target)

Tries to create an enum instance from a value, returns null if invalid.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/tryfrom/?output_format=md#parameters)󠁿

 `$value`stringrequired

The enum value.

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/tryfrom/?output_format=md#return)󠁿

 static|null The enum instance or null.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/tryfrom/?output_format=md#source)󠁿

    ```php
    final public static function tryFrom(string $value): ?self
    {
        $constants = static::getConstants();
        foreach ($constants as $name => $constantValue) {
            if ($constantValue === $value) {
                return self::getInstance($constantValue, $name);
            }
        }
        return null;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/php-ai-client/src/common/abstractenum.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/php-ai-client/src/Common/AbstractEnum.php#L123)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/php-ai-client/src/Common/AbstractEnum.php#L123-L132)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/tryfrom/?output_format=md#related)󠁿

| Uses | Description | 
| [AbstractEnum::getInstance()](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/getinstance/)`wp-includes/php-ai-client/src/Common/AbstractEnum.php` |

Gets or creates a singleton instance for the given value and name.

  |

| Used by | Description | 
| [AbstractEnum::from()](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/from/)`wp-includes/php-ai-client/src/Common/AbstractEnum.php` |

Creates an enum instance from a value, throws exception if invalid.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-common-abstractenum/tryfrom/?output_format=md#changelog)󠁿

| Version | Description | 
| [0.1.0](https://developer.wordpress.org/reference/since/0.1.0/) | Introduced. |

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