mb_parse_str() parses GET/POST/COOKIE data and
sets global variables. Since PHP does not provide raw POST/COOKIE
data, it can only used for GET data for now. It preses URL
encoded data, detects encoding, converts coding to internal
encoding and set values to result array or
global variables.
encoded_string: URL encoded data.
result: Array contains decoded and
character encoding converted values.
Return Value: It returns TRUE for success or FALSE for failure.
See also mb_detect_order(), mb_internal_encoding().