link_tag([$href = ''[, $rel = 'stylesheet'[, $type = 'text/css'[, $title = ''[, $media = ''[, $index_page = FALSE]]]]]])

call_function($function)

empty_table([$table = ''])

decrypt($data[, $params = NULL])

mobile()

anchor_popup($uri = '', $title = '', $attributes = FALSE)

underscore($str)

get_item($row_id)

insert_string($table, $data)

memory_usage()