getimagesize_mimes_to_exts
Filter Hook: Filters the list mapping image mime types to their respective extensions.
Source: wp-includes/functions.php:3100
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
wp_normalize_path()
Function: Normalizes a filesystem path.
Source: wp-includes/functions.php:2155
get_temp_dir()
Function: Determines a writable directory for temporary files.
Source: wp-includes/functions.php:2192
wp_is_writable()
Function: Determines if a directory is writable.
Source: wp-includes/functions.php:2235
win_is_writable()
Function: Workaround for Windows bug in is_writable() function
Source: wp-includes/functions.php:2259