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

ul($list[, $attributes = ''])

class CI_Image_lib initialize([$props = array()])

anchor($uri = '', $title = '', $attributes = '')

remove_invisible_characters($str[, $url_encoded = TRUE])

cache_off()

insert([$items = array()])

attachment_cid($filename)

segment_array()

browser()