Re: [phpesp-general] Re: problem: blank page

[James E. F. <jf...@ac...>]

On Wed, 23 Jan 2002, Danie Roux wrote:

> On Wed, Jan 23, 2002 at 09:22:41AM -0500, James E. Flemer wrote:
> >
> > Are you running this on unix (what unix/distro/kernel) or
> > windows (version)? What version of apache, and what version
> > of PHP (from RPM/pkg or from source etc)?
>
> It's Debian unstable. Apache 1.3.22. PHP 4.1.1. Installed from the
> packages.
>
> > PHP is supposed to gracefully handle calling mysql_*()
> > functions when the module is not available... i.e. It
> > should give an error message, it should *not* core dump.
>
> It does not core dump. It does nothing. Viewing the source shows a
> completely empty page. The Apache logs only says
>
> ... "GET /surveys/ HTTP/1.0" 200 0 "-" ...
>
> And that's it. No other indication.
>
> If I put a "echo ("Check");" in phpESP.ini right above
>
> if( !($ESPCONFIG['db_conn'] = @mysql_connect(
>
> It gets echoed. But if I put the echo above "header( 'HTTP/1.0 503 '." or
> at the bottom of the file it doesn't get shown.
>
> I just checked with w3m, a console web browser. It says
>
> "This cookie was rejected to prevent security violation. [RFC 2109 4.3.2
> rule 2.1]". Weird. Also does this after installing php4-mysql. But it
> still works.

Doh! That is it. Thanks for showing me that line. =)
Since there is an "@" in front of the mysql_connect(), all
error messages are suppressed. This is normally ok, becuase
I check the return value. However, when the mysql extension
is not loaded, it does not return -- the error is fatal.

Would it be possible for you to remove the extension and
see if this bit of code catches it (when placed before the
mysql_connect())?

	if(!extension_loaded('mysql')) {
		echo('<b>Mysql extension not loaded. Aborting.</b>');
		exit;
	}

For the rest of you who are having similar problems, please
verify that you have the mysql extension loaded, you can do
this from the phpinfo() page.

-James