php dom + in xml delete the particular node

Question

I want to delete particular node in XML based on the id I passed in the xml. The below seems not working please help me.

$id  = $_GET['nodeId'];
$dom = new DOMDocument;
$dom->load('Seat_matrix.xml');
$xpath = new DOMXPath($dom);
$query = sprintf('/location/cubicle[./id = "%d"]', $id);
foreach($xpath->query($query) as $cubicle) {
    $record->parentNode->removeChild($cubicle);
}
$dom->save("Seat_matrix.xml");

XML file

<location>

    <cubicle>
        <id> 6121</id>
        <status>2</status>
        <shift1>  
            <Employee1>Tom</Employee1>
        </shift1>           
        <shift2>  
            <Employee2>arum</Employee2>
        </shift2>
    </cubicle>
</location>

@Gordon, don't post answers as comments. Post that as an answer, because if that provides author with valid answer, author will not be able to accept a comment. — Janis Veinbergs
– Janis Veinbergs, Commented Jul 13, 2011 at 14:39
Hi I am getting Fatal error: Call to a member function removeChild() on a non-object on this line :$record->parentNode->removeChild($cubicle); — Vinod HC
– Vinod HC, Commented Jul 13, 2011 at 14:48

Gordon · Accepted Answer · 2011-07-13 15:17:24Z

1

You are using sprintf with %d but the element node contains " 6121" (mind the space in the beginning).

var_dump(sprintf('%d', ' 6121') === ' 6121'); // FALSE

Use %s instead. Also. there is no $record variable, so you have to change the code to

$cubicle->parentNode->removeChild($cubicle);

edited Jul 13, 2011 at 15:17

answered Jul 13, 2011 at 14:42

Gordon

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