WordPress at Your Fingertips
function is not described

check_upload_mimes() WP 3.0.0

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

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.

No Hooks.

Return

Array.

Usage

check_upload_mimes( $mimes );
$mimes(array) (required)
-

Changelog

Since 3.0.0 Introduced.

Code of check_upload_mimes() WP 5.8.2

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 && false !== strpos( $ext_pattern, $ext ) ) {
				$site_mimes[ $ext_pattern ] = $mime;
			}
		}
	}
	return $site_mimes;
}