Remove a child with a specific attribute, in SimpleXML for PHP

Question

I have several identical elements with different attributes that I\'m accessing with SimpleXML:

Answer 1

For future reference, deleting nodes with SimpleXML can be a pain sometimes, especially if you don't know the exact structure of the document. That's why I have written SimpleDOM, a class that extends SimpleXMLElement to add a few convenience methods.

For instance, deleteNodes() will delete all nodes matching a XPath expression. And if you want to delete all nodes with the attribute "id" equal to "A5", all you have to do is:

// don't forget to include SimpleDOM.php
include 'SimpleDOM.php';

// use simpledom_load_string() instead of simplexml_load_string()
$data = simpledom_load_string(
    '
        
        
        
        
        
    '
);

// and there the magic happens
$data->deleteNodes('//seg[@id="A5"]');