problem with file(), fread(), returns incomlete contents

[sachincrp]

I'm dynamically creating an xml document in my php script with values from a
user form.

$xmlFile = "myxml.xml";

$fileHandle = fopen($xmlFile, 'wb') or die ('Could not open file!');

$xmlData = '<?xml version="1.0" encoding="UTF-8" ?>'."\n";
.
.
.
.
fclose($fileHandle);

all this works..a valid xml document is created just like i want

But my problem is reading it. I want to be able to insert a new element into the xml document

So this is what I do rite now:

readfile($fileName);

when i do this, it does not print the entire contents of the xml file.
It only prints the values of the elements. It skips the actual elemtns.

for example: if part of my xml is something like this

<student>
<name>John</name>
<address>123 street</address>
</student>

my code only prints
John 123 street

it skips the xml tags. I dont understand why. I've tried the other ways to read files too such as
fgets, fread, file() and it does the same. Only values of the elemtns are printed.

Someone please help me with this. Why aren't my xml tags getting printed.

Another thing i also tried was instead of making this an .xml file, i made it a simple .txt
and tried the same thing, but same result.

PLEASE help

[bradgrafelman]

Is it perhaps printing it corrrectly, but your browser is trying to render it as HTML?

If you're viewing it in IE, FF, etc., try viewing the page source of the script.

[samudasu]

Send a header with the correct mime type for xml before calling readfile or whatever function you're using.

header('Content-type: text/xml');
readfile('example.xml');
exit();

[sachincrp]

when i tried header('Content-type: text/xml'); before i printed anything, i got the following warning:

Warning: Cannot modify header information - headers already sent by (output started at /www/cstv/html/admin/videoproject/test.php:10) in /www/cstv/html/admin/videoproject/test.php on line 274

but any how, the xml that i want to see did get printed in the page source. so the file is returning it..

but i want to be able to insert an element to the xml file, and then write it back using fwrite.

So what's the best way to do this?