Use of output buffering and a question about fixing a notice.

From: Eamon Reyn (eamonreyn_at_clear.net.nz)
Date: 05/31/04 

Date: 30 May 2004 22:10:03 -0700

Hi People,

I am working on a PHP application that was designed with output
buffering on and am wondering if this was the best approach. The
reason I have started wondering about the wisdom of the decision is
when I moved the application to a machine with a newer version of PHP
on it I started getting bugs that went away when I switched on output
buffering (using output_buffering = 4096).

Any reading suggestions would be appreciated as well as general
opinions.

As well as that I have the following code throwing a notice and am
wondering about the best way to fix it.

I have a form which requires user input, if the input is invalid the
form re-displays with the same data and error messages where
appropriate.

the problem occurs with this code:

<input type="radio" name="optCondition" value="all"
<?php
   if ($optCondition == "all"){
      print "checked";
   }
?>

because $optCondition is not declared the page throws a notice about
it however if I do the following:

<input type="radio" name="optCondition" value="all"
<?php
   $optCondition = "";
   if ($optCondition == "all"){
      print "checked";
   }
?>

the condition is going to get overwritten with an empty string and
spoil my test (I assume). Any Ideas would be appreciated.

I am sorry the first part of this message is a little vague but I hope
someone will pick up what I mean and be able to help.

Thanks,
Eamon.

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