check_upload_mimes() – Function | Developer.WordPress.org

Checks an array of MIME types against a list of allowed types.

Description

WordPress ships with a set of allowed upload filetypes, which is defined in wp-includes/functions.php in get_allowed_mime_types() . This function is used to filter that list against the filetypes allowed provided by Multisite Super Admins at wp-admin/network/settings.php.

Parameters

$mimesarrayrequired

Return

array

Source

function check_upload_mimes( $mimes ) {
	$site_exts  = explode( ' ', get_site_option( 'upload_filetypes', 'jpg jpeg png gif' ) );
	$site_mimes = array();
	foreach ( $site_exts as $ext ) {
		foreach ( $mimes as $ext_pattern => $mime ) {
			if ( '' !== $ext && str_contains( $ext_pattern, $ext ) ) {
				$site_mimes[ $ext_pattern ] = $mime;
			}
		}
	}
	return $site_mimes;
}

View all references View on Trac View on GitHub

Uses	Description
get_site_option()`wp-includes/option.php`	Retrieve an option value for the current network based on name of option.

Changelog

Version	Description
MU (3.0.0)	Introduced.

User Contributed Notes

Skip to note 2 content

Codex 9 years ago

You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note
Get allowed MIME types
```
$mimes = array(
    'jpg|jpeg|jpe' => 'image/jpeg',
    'php'          => 'application/x-php', // This isn't on the whitelist!
);
$mimes = check_upload_mimes( $mimes );
print_r( $mimes );
```
Output:
```
Array( 'jpg|jpeg|jpe' => 'image/jpeg' )
```
Log in to add feedback

check_upload_mimes( array $mimes ): array

In this article

Description

Parameters

Return

Source

Changelog

User Contributed Notes

check_upload_mimes( array $mimes ): array

In this article

Description

Parameters

Return

Source

Related

Changelog

User Contributed Notes