wp-includes/functions.php:3648Retrieves the list of allowed mime types and file extensions.
$userint|WP_Useroptionalnullstring[]One hook fires while get_allowed_mime_types() runs, in this order:
Filters the list of allowed mime types and file extensions.
function get_allowed_mime_types( $user = null ) { $t = wp_get_mime_types(); unset( $t['swf'], $t['exe'] ); if ( function_exists( 'current_user_can' ) ) { $unfiltered = $user ? user_can( $user, 'unfiltered_html' ) : current_user_can( 'unfiltered_html' ); } if ( empty( $unfiltered ) ) { unset( $t['htm|html'], $t['js'] ); } /** * Filters the list of allowed mime types and file extensions. * * @since 2.0.0 * * @param array $t Mime types keyed by the file extension regex corresponding to those types. * @param int|WP_User|null $user User ID, User object or null if not provided (indicates current user). */ return apply_filters( 'upload_mimes', $t, $user );}Introduced in 2.8.6. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/functions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.