[RESOLVED] File sends headers on very first line

ppowell

<?php if (headers_sent()) print_r('headers sent'); 

 // do other stuff
?>

I have a file, "classes.inc.php", a library of PHP version 4+ classes. This library file, the moment it is included, causes headers to be generated into the HTTP headers! I have no explanation as to how it does that, it just does that! I have tried everything I can think of, removing extraneous whitespace, using PICO, deleting and recreating the file in PICO, to no avail. There is no instance of print_r, echo, sprintf, nothing anywhere in any of the classes in the file.

I am out of ideas as to what to do at this point! HELP!

Thanx
Phil

SargeZT

Well, header's would most certainly not be sent out at that time unless an included file was triggering it. Can you post the source code of the class.inc.php's __construct function?

ppowell

SargeZT wrote:
Well, header's would most certainly not be sent out at that time unless an included file was triggering it. Can you post the source code of the class.inc.php's __construct function?

I would, but it would be meaningless. There are about 25 classes in this library all total, none are being instantiated upon include. Besides, I was able to trace "headers sent" on the very first line of the class library classes.inc.php, not within any specific class within classes.inc.php.

I even went so far as to copy and paste the UNIX PHP file "classes.inc.php" from another system to here, to no avail. Very same results: it generates HTTP headers on the very first line (on the remote system it does not do that)

Phil

SargeZT

Well, I assume you're trying to stop it from sending headers, so why not do it this way?

   ob_start();
   include($file);
   ob_end_clean();

Truly, it's a workaround, but I wouldn't bother wasting the mental cycles debugging it if that's the only symptom. Unless, of course, this is a high-volume site and you can't waste the CPU power on an output buffer.

Installer

What's the "auto_prepend_file" setting in php.ini?

Weedpacket

Which line of which file is the one that is causing headers to be sent?

ppowell

Got it!!!

Turns out that one of the PHP scripts was apparently corrupted. I deleted it and copied over an older version of the same script from another server and everything was resolved!

Phil