PHP / XML - replace chunk of XML in middle of file -


okay, i'm bit stumped. i'm more familiar python when manipulating xml, use php in instance if possible.

is there relatively straightforward way replace chunk of text - children , values given node - in xml file set of elements?

starting this:

<rdf:rdf xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:fedora="info:fedora/fedora-system:def/relations-external#" xmlns:myns="http://www.nsdl.org/ontologies/relationships#">     <rdf:description rdf:about="info:fedora/cfai:eb01a004">         <fedora:ismemberofcollection rdf:resource="info:fedora/cfai:collection"/>     </rdf:description> </rdf:rdf>

and looks this:

<rdf:rdf xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:fedora="info:fedora/fedora-system:def/relations-external#" xmlns:myns="http://www.nsdl.org/ontologies/relationships#">     <rdf:description rdf:about="info:fedora/cfai:eb01a004">         <element>these new elements paste in.</element>         <element>this another, string of elements</element>     </rdf:description> </rdf:rdf>

i've got loaded simple_xml_loadfile, i've got namespaces cooking registerxpathnamespace, i'm having embarassingly hard time figuring out how 1) remove nodes, , 2) insert own chunk of text in place.

any appreciated.

you use unset() remove node:

unset($xml->node);

and add element:

$node = $xml->addchild('node'); $node->addchild('title', 'i'm node'); $node->addchild('title2', 'another node');

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