Title: MimeType::equals
Published: May 20, 2026

---

# MimeType::equals( self|string $other ): bool

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wordpress-aiclient-files-valueobjects-mimetype/equals/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-files-valueobjects-mimetype/equals/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-files-valueobjects-mimetype/equals/?output_format=md#source)
 * [Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-files-valueobjects-mimetype/equals/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wordpress-aiclient-files-valueobjects-mimetype/equals/?output_format=md#wp--skip-link--target)

Checks if this MIME type equals another.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wordpress-aiclient-files-valueobjects-mimetype/equals/?output_format=md#parameters)󠁿

 `$other`self|stringrequired

The other MIME type to compare.

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-files-valueobjects-mimetype/equals/?output_format=md#return)󠁿

 bool True if equal.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-files-valueobjects-mimetype/equals/?output_format=md#source)󠁿

    ```php
    public function equals($other): bool
    {
        if ($other instanceof self) {
            return $this->value === $other->value;
        }
        if (is_string($other)) {
            return $this->value === strtolower($other);
        }
        throw new InvalidArgumentException(sprintf('Invalid MIME type comparison: %s', gettype($other)));
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/php-ai-client/src/files/valueobjects/mimetype.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/php-ai-client/src/Files/ValueObjects/MimeType.php#L234)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/php-ai-client/src/Files/ValueObjects/MimeType.php#L234-L243)

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-files-valueobjects-mimetype/equals/?output_format=md#changelog)󠁿

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

## User Contributed Notes

You must [log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fdeveloper.wordpress.org%2Freference%2Fclasses%2Fwordpress-aiclient-files-valueobjects-mimetype%2Fequals%2F)
before being able to contribute a note or feedback.