Re: Undefined variables

Darren, Thanks for the tip on direction to head in. Could you provide an example of what you are referring to? "Darren Gamble" <Darren.Gamble@sjrb.ca> wrote in message news:078EC26E265CD411BD9100508BDFFC860ED3E64E@shawmail02... > Good day, > > Just to clarify, Perl will, in fact, complain if you have undefined > variables (or variables that you use once) if you have warnings and/or > strict mode in effect. Using at least one is strongly recommended. > > In PHP, the method you're using for getting form data is deprecated. You > should use $HTTP_POST_VARS or $_POST, depending on your version. Check the > docco for more info on those. > > If you really have to check variables using this method, use isset() to see > if the variables ... have been set. =) > > ============================ > Darren Gamble > Planner, Regional Services > Shaw Cablesystems GP > 630 - 3rd Avenue SW > Calgary, Alberta, Canada > T2P 4L4 > (403) 781-4948 > > > > -----Original Message----- > > From: Crane, Christopher [mailto:CCrane@IKON.com] > > Sent: Thursday, May 30, 2002 3:07 PM > > To: 'php-general@lists.php.net' > > Subject: [PHP] Undefined variables > > > > > > I have an annoying problem, that I know is my own ignorance > > to PHP. I came > > from PERL and this was not a problem there but is with PHP. > > > > Here's the issue. > > I have a number of scripts that use a "index.php?Task='some > > sort of task > > name'", for example, > > http://www.foo.com/index.php?Task=ShowVersion > > <http://www.foo.com/index.php?Task=ShowVersion> . > > Then I use > > an if/else > > statement to tell the script what to do if it sees the > > ShowVersion variable. > > In the ShowVersion example, I would call a function that displays the > > version information I defined in the script. As a back up, I > > always provide > > an else statement to catch variables I have no functions for. > > > > If I have a ShowVersion function, GetData function and a CreateImage > > function and the Task variable is empty or a variable that > > does not exists > > comes in like > > http://www.foo.com/index.php?Task=SomethingDumb > > <http://www.foo.com/index.php?Task=SomethingDumb> > > it would go to the > > default function of something by using the ELSE part of the if/else > > statements. > > > > I hope I am describing this correctly.....now here is the > > problem. If I have > > warnings turned on, or if I have a log written for warnings, > > the log fills > > up if someone goes to http://www.foo.com/index.php > > <http://www.foo.com/index.php> or > > http://www.foo.com > <http://www.foo.com> > will error messages like undefine variable TASK on line 255. I understand > the reason, that PHP was expecting the variable Task when it got to the > if/else statements. So I put in something like if(!($Task)) { function > Something(); } but it still is looking for the variable so it still errors. > > In Perl, it would simply be ignored. What do I do here. > > Here is a simple example of the code. > > if ($Task == "ShowVersion") { function ShowVersion(); } > elseif ($Task == "GetData") { function GetData(); print "$DataOutput"; } > elseif ($Task == "CreateImage") { function CreateImage(); } > else { print "Incorrect Variable or no Variable Supplies<br>"; } > > > > > > Christopher J. Crane > Network Operations Manager > > IKON Office Solutions > 860.659.6464 > >