I have this problem: I want to generate an xml page from PHP script. The user that want the document can connect to a specific URL with specific parameters. But something not work because I think there are some whitespace chracters between the start of the document and the start of xml declaration:
<?xml version="1.0"?>
I removed in the code all the characters between <?php and header('Content-Type: text/xml; charset=utf-8'); and now look like this:
<?php
header('Content-Type: text/xml; charset=utf-8');
//ini_set('display_errors', 'On');
//error_reporting(E_ALL);
include("some_file.php");
require_once("some_file.php");
// some php code
$xml = new SimpleXMLElement("<response></response>");
// other php code
echo $xml->asXML();
?>
When I run this script, Firefox gives me this message:
XML Parsing Error: XML or text declaration not at start of entity
Line Number 1
Why does I have this error?
