Title: sanitize_mime_type
Published: April 25, 2014
Last modified: May 20, 2026

---

# apply_filters( ‘sanitize_mime_type’, string $sani_mime_type, string $mime_type )

## In this article

 * [Parameters](https://developer.wordpress.org/reference/hooks/sanitize_mime_type/?output_format=md#parameters)
 * [Source](https://developer.wordpress.org/reference/hooks/sanitize_mime_type/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/hooks/sanitize_mime_type/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/hooks/sanitize_mime_type/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/hooks/sanitize_mime_type/?output_format=md#wp--skip-link--target)

Filters a mime type following sanitization.

## 󠀁[Parameters](https://developer.wordpress.org/reference/hooks/sanitize_mime_type/?output_format=md#parameters)󠁿

 `$sani_mime_type`string

The sanitized mime type.

`$mime_type`string

The mime type prior to sanitization.

## 󠀁[Source](https://developer.wordpress.org/reference/hooks/sanitize_mime_type/?output_format=md#source)󠁿

    ```php
    return apply_filters( 'sanitize_mime_type', $sani_mime_type, $mime_type );
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/formatting.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/formatting.php#L5735)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/formatting.php#L5735-L5735)

## 󠀁[Related](https://developer.wordpress.org/reference/hooks/sanitize_mime_type/?output_format=md#related)󠁿

| Used by | Description | 
| [sanitize_mime_type()](https://developer.wordpress.org/reference/functions/sanitize_mime_type/)`wp-includes/formatting.php` |

Sanitizes a mime type

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/hooks/sanitize_mime_type/?output_format=md#changelog)󠁿

| Version | Description | 
| [3.1.3](https://developer.wordpress.org/reference/since/3.1.3/) | Introduced. |

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