(PHP 5 >= 5.3.0, PHP 7)
Set a part of the prefix
public void RecursiveTreeIterator::setPrefixPart ( int $part, string $value )
Sets a part of the prefix used in the graphic tree.
Parameters:
part
One of the RecursiveTreeIterator::PREFIX_* constants.
value
The value to assign to the part of the prefix specified in part.