CSV to XML - when the data.csv is outside from the folder the XML-import.xml save file is empty

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PHP

CSV

XML-documentation

When I moved the 'data.csv' to other place location it will not save the 'xml-import.xml' on my computer. The code only works if the CSV file 'data.csv' is in the same folder with convert.php (name of my PHP script) but if you moved the data.csv to different location, the 'xml-import.xml' are not save.

All I need is even if you move the data.csv files from different location the 'xml-import.xml' also save. Is that possible?

What I have tried:

<form action="" method="POST">
<input id="my-file-selector" type="file" name="fname" value="Choose File to Upload">
<input class="btn btn-warning" type="submit" name="submit" value="CONVERT" >
</form>

<?php
error_reporting(0);
if(isset($_POST['fname'])){
$value = $_POST['fname'];
}

//$rows = array_map('str_getcsv', file('./PATH/$value'));
$rows = array_map('str_getcsv', file($value));
$header = array_shift($rows);
$data = array();
foreach ($rows as $row)
{
    $data[] = array_combine($header, $row);
}
foreach($data AS $key => $val)
{
}
$xml = new DomDocument('1.0', 'UTF-8'); 
$root = $xml->createElement('root');
$xml->appendChild($root);
foreach($data AS $key => $val) 
{ 
    $entry = $xml->createElement('entry');
    $root->appendChild($entry);
    foreach($val AS $field_name => $field_value) 
    { 
        $field_name = preg_replace("/[^A-Za-z0-9]/", '', $field_name);
        $name = $entry->appendChild($xml->createElement($field_name)); 
        $name->appendChild($xml->createCDATASection($field_value)); 
    }
}
$xml->formatOutput = true; 
$xml->save('xml-import.xml');
?>