CODEWITHSUNDEEP
php
Andrew
Andrew

Reputation: 2975

php dom with xpath to remove tag

I have a xml which the format is like this:

<root>
    <a>1</a>
    <b>2</b>
    <c></c>
</root>

This is the code I have tried: 

$to = 3;
$dom = new DOMDocument();
$dom->formatOutput = true;
$dom->preserveWhiteSpace = false;
$dom->load("../xxx.xml");
$xpath = new DOMXPath($dom);
$query = "/root/*[position()=$to]";
$nodes = $xpath->query($query);
$node = $nodes[0];
$dom->removeChild($node);
$dom->save("../xxx.xml", LIBXML_NOEMPTYTAG);

How can I delete the tag with name "c" ?

Upvotes: 1

Views: 803

Answers (1)

Andrew
Andrew

Reputation: 2975

Oh lord, the problem was lie under

$dom->removeChild($node);

should be

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

in order to delete a node, you have to get back to the parent node and then it will take the action..I think, this is just my two cents. if someone understand well, feel free to correct me

Upvotes: 1

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