read/write xml file in php, task

Zweites Jahr/aufgaben/csvToXml/convertCSVtoXML.php

@@ -0,0 +1,70 @@
+<h1>CSV -> XML</h1>
+<?php
+
+error_reporting(E_ALL);
+ini_set("display_errors", 1);
+
+// DOM struktur
+/*
+<?xml version="1.0" encoding="utf-8"?>
+<personen>
+    <nr> </nr>
+    <vorname> </vorname>
+    <nachname> </nachname>
+</personen
+*/
+
+// READ CSV FILE
+$fileCSV = "e2fi2.csv";
+if(!file_exists($fileCSV)){
+    die("File $fileCSV doesn't exist or not found!");
+}
+
+$fp = @fopen($fileCSV, 'r');
+if(!$fp){
+    die("Error while opening CSV file!");
+}
+$header_array =fgetcsv($fp, 0, ";");
+
+
+print_r($header_array);
+
+// CREATE XML DOM
+$xmlDoc = new DOMDocument("1.0", "utf-8");
+$xmlDoc->formatOutput=true;
+
+$xmlRoot = $xmlDoc->createElement("data");
+$xmlDoc->appendChild($xmlRoot);
+
+
+// FILL XML FILE WITH CSV DATA
+while(($row_array = fgetcsv($fp, 0, ";")) !== false){
+    // skip emty value
+    if ($row_array === null || $row_array === []) {
+        continue;
+    }
+
+    // create sub elemente
+    $xmlSchueler = $xmlDoc->createElement("schuelerdata");
+    // for the count of elements in a row do this
+    for ($i = 0; $i < count($row_array); $i++){
+        // make sure there is a header to row
+        if (!isset($header_array[$i])){
+            continue;
+        }
+
+        // get current collumn
+        $column = $header_array[$i];
+        echo "$row_array[$i]<br>";
+
+        // create a new element with name of column and row data
+        $xmlSchuelerDaten = $xmlDoc->createElement($column, $row_array[$i]);
+        $xmlSchueler->appendChild($xmlSchuelerDaten);
+    }
+    // save element
+    $xmlRoot-> appendChild($xmlSchueler);
+}
+
+// Save whole XML file 
+$fileXml = "e2fi2.xml";
+$xmlDoc->save(__DIR__ . "/$fileXml");