PHP and Error Reporting

i'm running php with postgresql. i just finished
polishing off a pretty long query sequence. my page
returns a blank page.

how do i turn on error reporting when running php as a
cgi on my development xp / cygwin box?

i tried including...

ini_set('error_reporting', E_ALL);

and then i tried including...

error_reporting(E_ALL);

no error was reported - just a blank screen.

i'm sure it is a simple oversite, but it is so much
easier when php tell you where it breaks than to have
to find waldo by searching the entire script.

tia...

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