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@ 2013-12-27T06:44:06Z

<?php
$dom=new DOMDocument();
$dom->loadXML(<<<XML
<?xml version="1.0"?>
<alerts>
  <alert>
    <id>3</id>
    <msg_type>1</msg_type>
    <msg>Some Message</msg>
    <url>Some Link</url>
    <status>0</status>
    <create_date>1388049941</create_date>
    <update_date>1388052529</update_date>
  </alert>
  <alert>
    <id>6</id>
    <msg_type>1</msg_type>
    <msg>Some Message</msg>
    <url>Some Link</url>
    <status>0</status>
    <create_date>1388049941</create_date>
    <update_date>1388052529</update_date>
  </alert>
  <alert>
    <id>14</id>
    <msg_type>1</msg_type>
    <msg>Some Message</msg>
   <url>Some Link</url>
    <status>0</status>
    <create_date>1388049941</create_date>
    <update_date>1388052529</update_date>
  </alert>
  <alert>
    <id>24</id>
    <msg_type>1</msg_type>
    <msg>Some Message</msg>
    <url>Some Link</url>
    <status>0</status>
    <create_date>1388049941</create_date>
    <update_date>1388052529</update_date>
  </alert>
</alerts>
XML
);
$xpath=new DOMXPath($dom);
$nodeList=$xpath->query('alert[msg_type=1]');
$myID=14;
foreach($nodeList as $node)
{
	foreach($node->childNodes as $child)
	{
		if($child->nodeName=="id")
		{
			if($child->textContent==$myID)
			{
				$node->parentNode->removeChild($node);
			}
			break;
		}
	}
}
echo $dom->saveXML();

Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.20, 8.3.0 - 8.3.8: <?xml version="1.0"?> <alerts> <alert> <id>3</id> <msg_type>1</msg_type> <msg>Some Message</msg> <url>Some Link</url> <status>0</status> <create_date>1388049941</create_date> <update_date>1388052529</update_date> </alert> <alert> <id>6</id> <msg_type>1</msg_type> <msg>Some Message</msg> <url>Some Link</url> <status>0</status> <create_date>1388049941</create_date> <update_date>1388052529</update_date> </alert> <alert> <id>24</id> <msg_type>1</msg_type> <msg>Some Message</msg> <url>Some Link</url> <status>0</status> <create_date>1388049941</create_date> <update_date>1388052529</update_date> </alert> </alerts>
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9: Fatal error: Cannot instantiate non-existent class: domdocument in /in/bofXs on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Cannot instantiate non-existent class: domdocument in /in/bofXs on line 2

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