timespan([$seconds = 1[, $time = ''[, $units = '']]])

By default, URLs in CodeIgniter are designed to be search-engine and human friendly. Rather than using the standard “query string” approach to URLs that is synonymous with

display_errors([$open = ' [, $close = ' ']])

get_cookie($index[, $xss_clean = NULL])

form_radio([$data = ''[, $value = ''[, $checked = FALSE[, $extra = '']]]])

not_group_start()

group_end()

like($field[, $match = ''[, $side = 'both'[, $escape = NULL]]])

where_not_in([$key = NULL[, $values = NULL[, $escape = NULL]]])

escape($str)