Blank javascript alert from PHP-generated XML

Scheduler Javascript
#1

I’m trying to load an xml file with scheduler.load(“events.xml”) and it works, but when I output the same file using php like so:
header(‘Content-type: text/xml;’);
“file_read_stuff_here”
echo $file_contents;

DhtmlxScheduler gives me a blank javascript alert and I can’t find a single character that is different in the output, but the header is a bit different, coul’d this be the cause?

And if so, is there a way to fix it?

Thease are the headers according to web-sniffer.net/

XML-file
HTTP Response Header
Name Value Delim
Status: HTTP/1.1 200 OK
Date: Sun, 16 Jan 2011 12:59:14 GMT
Server: Apache/2.0.52 (Red Hat)
Last-Modified: Thu, 13 Jan 2011 01:54:23 GMT
ETag: “5e404d-2af-98c231c0”
Accept-Ranges: bytes
Content-Length: 687
Cache-Control: max-age=172800, proxy-revalidate
Connection: close
Content-Type: text/xml

PHP-generated
Date: Sun, 16 Jan 2011 12:59:17 GMT
Server: Apache/2.0.52 (Red Hat)
X-Powered-By: PHP/4.3.9
Set-Cookie: PHPSESSID=134da6fac56ada4103641e403bc8db4f; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: max-age=60, private, proxy-revalidate
Pragma: no-cache
Content-Length: 687
Connection: close
Content-Type: text/xml;

#2

Only
Content-Type: text/xml;
is important in header, other difference doesn’t matter

Check the data output - if you have any whitespaces before <?xml - it will be enough to break xml parsing ( limitation of ff|webkit xml parsers )

#3

Whitespaces
I moved the code to the first line of the php-code being executed and right after the output i stop php with die();

Result: a blank javascript dialog

xml code
The file events.xml doesn’t include a <?xml -part,
but I tried adding the line echo ‘<?xml version="1.0" encoding="UTF-8"?>’;

Result: a blank javascript dialog

The output xml looks identical between the “physical” and the “php-generated” xml-files and they are exactly the same size.

I really don’t get this, but I hope there is a solution to it, dhtmlx looks like a good match for our software

#4

Btw. do you guys have any example code that creates an xml file that works with the scheduler?

#5

Check the attached one.
As you can see - setting the header is enough
1295271388.zip (49.5 KB)

#6

Thank you Stanislav, you’r example helped me troubleshoot it!

The problem was that the requested URI in PHP wasn’t “event2010.xml”, but rather “event2010.xml?timeshift=-60”.

I didn’t know that, now i just need to strip off the query-string and we’re off =)

Thanks again & have a good day!