PHP Create XML CDATA Section which contains the result of a function - php

Question

I would like my CDATA section display the result of a function that generates a text from an sql query.
Create sql query and call function createXMLfile:
$statement = $connection->query("SELECT * FROM events ORDER BY ID DESC LIMIT 1");
$statement->execute();
$eventArray = array();
while($row = $statement->fetch(PDO::FETCH_ASSOC))
{
array_push($eventArray, $row);
}
createXMLfile($eventArray);
Function that generate text from my sql query:
<?php
function write_records($eventArray) {
for($i=0; $i<count($eventArray); $i++){
$name = $eventArray[$i]['event_name'];
$city = $eventArray[$i]['event_city'];
?>A new event <?php echo $eventArray[$i]['event_name'];?> is coming in <?php $eventArray[$i]['event_city'];?>.<?php
}
return $eventArray;
}
?>
Function that create XML file (i use implode for convert array to a string):
function createXMLfile($eventArray){
$filePath = 'event.xml';
$content = implode(' ', write_records($eventArray));
$dom = new DOMDocument('1.0', 'utf-8');
$root = $dom->createElement('INCIDENTS');
for($i=0; $i<count($eventArray); $i++){
$eventName = $eventArray[$i]['event_name'];
$eventCity = $eventArray[$i]['event_city'];
$eventXml = $dom->createElement('INCIDENT');
$name = $dom->createElement('EVENT', $eventName);
$eventXml->appendChild($name);
$city = $dom->createElement('CITY', $eventCity);
$eventXml->appendChild($city);
$eventXml->appendChild(new DOMElement('COMMENTAIRE'))->appendChild(new DOMCdataSection($content));
$root->appendChild($eventXml);
}
$dom->appendChild($root);
$dom->save($filePath);
}
XML file is generated but CDATA section display only this :
<![CDATA[Array]]>
Please can you tell me what's wrong ? Thanks for your help.
EDIT:
function createXMLfile($eventArray){
$filePath = 'event.xml';
$content = implode(' ', write_records($eventArray[0]));
$dom = new DOMDocument('1.0', 'utf-8');
$root = $dom->createElement('INCIDENTS');
for($i=0; $i<count($eventArray); $i++){
$eventName = $eventArray[$i]['event_name'];
$eventCity = $eventArray[$i]['event_city'];
$eventXml = $dom->createElement('INCIDENT');
$name = $dom->createElement('EVENT', $eventName);
$eventXml->appendChild($name);
$city = $dom->createElement('CITY', $eventCity);
$eventXml->appendChild($city);
$eventXml->appendChild(new DOMElement('COMMENTAIRE'))->appendChild(new DOMCdataSection($content));
$root->appendChild($eventXml);
}
$dom->appendChild($root);
$dom->save($filePath);
}
Now sql values are displayed in CDATA section but not the generated text from function write_records($eventArray).
<![CDATA[concert Miami]]>
And i would like :
<![CDATA[A new concert is coming in Miami]]>
print_r($eventArray); give me same result :
$statement = $connection->query("SELECT * FROM events ORDER BY ID DESC LIMIT 1");
$statement->execute();
$eventArray = array();
while($row = $statement->fetch(PDO::FETCH_ASSOC))
{
array_push($eventArray, $row);
}
print_r($eventArray);
createXMLfile($eventArray);
Apache Log say PHP Notice: Undefined offset :0 from variables values in function write_records($eventArray)