(PECL newt >= 0.1)
newt_checkbox_tree_add_item — Adds new item to the checkbox tree
$checkboxtree
   , string $text
   , mixed $data
   , int $flags
   , int $index
   [, int $...
  ] )This function allows to add new item to the checkbox tree.
checkboxtree
text
data
flags
index
No value is returned.