fix xml

fixXML.php

<?php
$xml = '
<products>
  <product>
    <id>1</id>
  </product>
  <product>
    <id>2</id>
  </product>
  <product>
    <id>3</id>
  </product>
  <product>
    <id>4</id>
  </product>
  <product>
    <id>5</id>
    <a>bozuk<a>
  </product>
</products>
';

echo fixXML($xml, 'product');

function fixXML($xml, $nodeName) {

        $patternTag = sprintf('/<%s[\s>].*?<\/%s>/s', $nodeName, $nodeName);
        preg_match_all($patternTag, $xml, $matches);

        $start = '<?xml version="1.0" encoding="utf-8"?><root>';
        $end = '</root>';
        $list = [];
        $wrongItem = [];
        $doc = new \DOMDocument();
        foreach ($matches[0] as $key => $item) {
            try {
                $tmpXML = $start . $item . $end;
                $status = @$doc->loadXML($tmpXML);
                if ($status == false) {
                	throw new \Exception;
                }
                $list[] = $item;
            } catch (\Exception $e) {
                $wrongItem[] = $item;
            }
        }

        $xml = $start . implode("\n", $list) . $end;

        return $xml;
}