Write Data to XML File using PHP

DOMDocument class

<?php

$data = [
    ['id' => 1, 'name' => 'John'],
    ['id' => 2, 'name' => 'Mary'],
    ['id' => 3, 'name' => 'Robert'],
];

$doc = new DOMDocument();
$doc->encoding = 'UTF-8';

$persons = $doc->createElement('persons');

foreach ($data as $item) {
    $person = $doc->createElement('person');
    $person->setAttribute('id', $item['id']);

    $name = $doc->createElement('name', $item['name']);
    $person->appendChild($name);

    $persons->appendChild($person);
}

$doc->appendChild($persons);
$doc->save('test.xml');