DOMElement cloning and appending: 'Wrong Document Error'

Question

There's something I don't fully understand about node cloning with the PHP's DOM api. Here's a sample file that quickly duplicates the issue I'm coming across. ``` $doc = new DOMDocument( '1.0', 'UTF-8' ); $root = $doc->createElement( 'root' ); // This doesn't work either $root = new DOMElement( 'root' ); $doc->appendChild( $root ); $doc2 = new DOMDocument( '1.0', 'UTF-8' ); $root2 = $doc2->createElement( 'root2' ); $doc2->appendChild( $root2 ); // Here comes the error $root2->appendChild( $root->cloneNode() ); ``` When you run this little snippet an exception is thrown Fatal error: Uncaught exception 'DOMException' with message 'Wrong Document Error' Can I not grab a node from a document, clone it, and then append it to another document?

Accepted Answer

Use `DOMDocument->importNode` to import the node into the other document before adding it to the DOM.

DOMElement cloning and appending: 'Wrong Document Error'

Solution

Problem