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# DomNode->replace_child

(no version information, might be only in CVS)

DomNode->replace_child -- Replaces a child

## Description

object DomNode->replace_child ( object oldnode, object newnode)

(PHP 4.2) This function replaces the child `oldnode` with the passed new node. If the new node is already a child it will not be added a second time. If the old node cannot be found the function returns false. If the replacement succeds the old node is returned.

(PHP 4.3) This function replaces the child `oldnode` with the passed `newnode`, even if the new node already is a child of the DomNode. If `newnode` was already inserted in the document it is first unlinked from its existing context. If the old node cannot be found the function returns false. If the replacement succeds the old node is returned. (This behaviour is according to the W3C specs).

See also DomNode_append_child()

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