# Method Parser.XML.Tree.AbstractSimpleNode()->replace_child()

Method replace_child

  ``AbstractSimpleNode` replace_child(`AbstractSimpleNode` `old`, `AbstractSimpleNode` `new`)`

Description

  Replaces the first occurrence of the old node child with the new node child.

Note

  The return value differs from the one returned by Node()->replace_child().

Returns

  Returns the current node on success, and `0` (zero) if the node `old` wasn't found.