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
wp_get_upload_dir()
Function: Retrieves uploads directory information.
Source: wp-includes/functions.php:2297
wp_upload_dir()
Function: Returns an array containing the current upload directory’s path and URL.
Source: wp-includes/functions.php:2338
upload_dir
Filter Hook: Filters the uploads directory data.
Source: wp-includes/functions.php:2363
_wp_upload_dir()
Function: A non-filtered, non-cached version of wp_upload_dir() that doesn’t check the path.
Source: wp-includes/functions.php:2401
wp_unique_filename()
Function: Gets a filename that is sanitized and unique for the given directory.
Source: wp-includes/functions.php:2534
wp_unique_filename
Filter Hook: Filters the result when generating a unique file name.
Source: wp-includes/functions.php:2779