rsegment($n[, $no_result = NULL])

slash_rsegment($n[, $where = 'trailing'])

segment_array()

assoc_to_uri($array)

total_rsegments()

total_segments()

ruri_string()

uri_to_assoc([$n = 3[, $default = array()]])

class CI_URI segment($n[, $no_result = NULL])

rsegment_array()