How to update an xml file on filesystem conditionally - PHP - php

Question

I have the xml file called fonts.xml located on my filesystem.
Goal:
I want to update the attribute <status> where name is "Aclonica" but I don't know how to do it conditionally.
XML:
<fonts>
<font>
<name>Aclonica</name>
<category>Aclonica</category>
<variants>100,bold</variants>
<status>active</status>
</font>
<font>
<name>Azeebe</name>
<category>Sans-serif</category>
<variants>100,bold,italic</variants>
<status>active</status>
</font>
</fonts>

Answer 1

You need to use DOMDocument class. This way you select data using normal if condition:
solution:
$a = $_POST['font']; // here value 'Aclonica' is assigned to $a
$dom = new DOMDocument();
$dom->load('c:/xampp/htdocs/cms/public/fonts/font.xml');
foreach ($dom->documentElement->childNodes as $node) {
// print_r($node); // >> uncomment for debug purposes
if($node->nodeType == 1) {
$name = $node->getElementsByTagName('name')->Item(0);
if($name->nodeValue == $a) { // >> IMPORTANT: here is the condition you need
$OldJobId = $node->getElementsByTagName('status')->Item(0);
if($OldJobId->nodeValue == 'active') {
$newelement = $dom->createElement('status','inactive');
$OldJobId->parentNode->replaceChild($newelement, $OldJobId);
}else{
$newelement = $dom->createElement('status','active');
$OldJobId->parentNode->replaceChild($newelement, $OldJobId);
}
}
}
}
$dom->save("c:/xampp/htdocs/cms/public/fonts/font.xml");