PHP DOM remove child - php

Question

I am trying to remove the parent node of <wcccanumber> from my xml, if it's content matches a certain criterion, but it keeps just removing the one node <wcccanumber>. How do I remove the whole parent node?
Heres my code:
$xml = new SimpleXMLElement('<xml/>');
if (file_exists("xml/units/E01.xml")) {
$xml = simplexml_load_file("xml/units/E01.xml");
echo "File exists";
echo "</br>";
$wcccanumber = "121202482";
foreach ($xml->call->wcccanumber as $call) {
if ($call == $wcccanumber) {
$dom = dom_import_simplexml($call);
$dom->parentNode->removeChild($dom);
$fp = fopen("xml/units/E01.xml","wb");
fwrite($fp,$xml->asXML());
fclose($fp);
}
}
}
Here is the xml:
<xml>
<call>
<wcccanumber>121202482</wcccanumber>
<currentcall>FALL</currentcall>
<county>W</county>
<id>82</id>
<location>234 E MAIN ST</location>
<callcreated>12:26:09</callcreated>
<station>HBM</station>
<units>E01</units>
<calltype>M</calltype>
<lat>45.5225067888299</lat>
<lng>-122.987112718574</lng>
<inputtime>12/18/2012 12:27:01 pm</inputtime>
</call>
</xml>

Answer 1

Iterate through call and compare $call->wcccanumber with $wcccanumber. Convert $call to dom and remove it (parentNode->removeChild).
foreach ($xml->call as $call) {
if ($call->wcccanumber == $wcccanumber) {
$dom = dom_import_simplexml($call);
$dom->parentNode->removeChild($dom);
$fp = fopen("xml/units/E01.xml","wb");
fwrite($fp,$xml->asXML());
fclose($fp);
}
}
If there are multiple deletions it makes sense to save only once after all deletions have been done.
$deletionCount = 0;
foreach ($xml->call as $call) {
if ($call->wcccanumber != $wcccanumber) {
continue;
}
$dom = dom_import_simplexml($call);
$dom->parentNode->removeChild($dom);
$deletionCount++;
}
if ($deletionCount) {
file_put_contents("xml/units/E01.xml", $xml->asXML());
}