Small increment logical problem

[Samuz]

Hi guys, i'm trying to increment a variable / session value whenever 'submit' comes in the POST.

 

I can't seem to get around the logic of this.

 

Code looks like this:

 

$var = 0
if($_POST('submit'){
$_SESSION['var2'] = $var++;
}

 

What I want it to do is increment the value of the session index everytime a user clicks 'submit'.

 

But because i've reset $var to 0 everytime, it's always just going to stay at 1.

 

I just can't think of a way to achieve this, does anyone have any clue on how I can?

[WebStyles]

$_SESSION['var2']++;

[Samuz]

$_SESSION['var2']++;

Yeah that's a problem. Because $var is still being reset back to 0 everytime and so will the session variables..

[WebStyles]

why are you using $var ?? you said "What I want it to do is increment the value of the session index everytime a user clicks 'submit'."...

If you're storing this in a SESSION, each user will have his own value... (each user has his own session).

If your goal is to have a global count of how many times the form was submitted, you need to store it somewhere else (database of .txt file or whatever)... it's basically the same as a page counter, but only activated on form submission...

[Samuz]

why are you using $var ?? you said "What I want it to do is increment the value of the session index everytime a user clicks 'submit'."...

If you're storing this in a SESSION, each user will have his own value... (each user has his own session).

If your goal is to have a global count of how many times the form was submitted, you need to store it somewhere else (database of .txt file or whatever)... it's basically the same as a page counter, but only activated on form submission...

Because the counter has to start from somewhere (0 in this example).

 

I was thinking about just going ahead and incrementing it with it without defining the starting point, but i'm not sure that will work because i'm sure PHP will return an undefined variable error. right?

[WebStyles]

in that case just check if it exists first:

if(!isset($_SESSION['var2'])){
$_SESSION['var2'] = 1;
}else{
$_SESSION['var2']++;
}

[Samuz]

in that case just check if it exists first:

if(!isset($_SESSION['var2'])){
$_SESSION['var2'] = 1;
}else{
$_SESSION['var2']++;
}

Thanks, makes perfect sense.