wp_check_filetype()
Function: Retrieves the file type from the file name.
Source: wp-includes/functions.php:3027
wp_check_filetype_and_ext
Filter Hook: Filters the “real” file type of the given file.
Source: wp-includes/functions.php:3258
wp_check_filetype_and_ext()
Function: Attempts to determine the real file type of a file.
Source: wp-includes/functions.php:3071
mime_types
Filter Hook: Filters the list of mime types and file extensions.
Source: wp-includes/functions.php:3372
wp_get_image_mime()
Function: Returns the real mime type of an image file.
Source: wp-includes/functions.php:3273
ext2type
Filter Hook: Filters file type based on the extension name.
Source: wp-includes/functions.php:3501
wp_get_mime_types()
Function: Retrieves the list of mime types and file extensions.
Source: wp-includes/functions.php:3360
upload_mimes
Filter Hook: Filters the list of allowed mime types and file extensions.
Source: wp-includes/functions.php:3584
wp_get_ext_types()
Function: Retrieves the list of common file extensions and their types.
Source: wp-includes/functions.php:3490
wp_die_ajax_handler
Filter Hook: Filters the callback for killing WordPress execution for Ajax requests.
Source: wp-includes/functions.php:3703