Need some help with an if statement 2

[reisende]

Hi everybody,

First let me preface this by saying that I'm not very good with PHP so if my issue sounds easy/stupid then please forgive me.

I have something driving me crazy. What I'm trying to do is check whether a variable is populated or not and if so set a boolean to true and vice versa.

if ($username != "") {
  $auth = true;
} else {
  $auth = false;
}

Seems easy enough. I works when I print it to the screen. When I'm logged it $auth returns 1 and 0 when I'm not.

What I don't get is that I'm then trying to use the $auth variable to determine if a link should be printed around a calendar date or not. This is not working and it's driving me nuts.

if ($auth) 
  $str .= "<a href=\"javascript: postMessage($day, $month, $year)\">$day</a>";
else
  $str .= "$day";

Again, seems easy enough, but all I ever get is the blank number ($day) even if the $auth variable is set to true.

I'm hoping this is just a quick syntax or code problem. Any help on this would be greatly appreciated.

Thanks.

 

[lgarner]

I'd suggest some echo statements at various places for debugging, like right before the second code fragment.

I pasted your code into a php file, added constant values for the variables, and it worked just fine.

 

[vacunita]

In addition to lgarner's sugestions, Is this

if ($username != "") {
  $auth = true;
} else {
  $auth = false;
}

on the same page as the the other piece of code.

Another thing is when checking wether a variable is set id use [green]isset[/green]
as in

if([green]isset[/green]($username)){
...

Becasue if you try to check a variable that has not been set you'll get an error.


----------------------------------
Ignorance is not necessarily Bliss, case in point:
Unknown has caused an Unknown Error on Unknown and must be shutdown to prevent damage to Unknown.

 

[reisende]

Maybe that's the problem. The code that sets it to either a link or regular text (the second snippet) is in an include file. I'll try it in the same physical file and see if that helps.

 

[reisende]

OK, that worked. Thank you both. I didn't know they needed to be in the same file. Oh well, learn something new each day.

 

[vacunita]

Glad you sorted it out.

----------------------------------
Ignorance is not necessarily Bliss, case in point:
Unknown has caused an Unknown Error on Unknown and must be shutdown to prevent damage to Unknown.

 

[sleipnir214]

reisende:
What do you mean when you say, "I didn't know they needed to be in the same file."?

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