Help with a loop/var problem please

[Anon]

Hi guys,
I have a section of code that unset()'s a bunch of vars (about 8 of them) like this:

unset($temp_one);
unset($temp_two);
unset($temp_three);

What I'd like to do is loop through each var that's named $temp_something.
I think variable variables may be the way forward but would like some opinions on this and a pointer in the right direction.

Many thanks

Nick Wilson

[[deleted]]

What's the reason for unsetting the variables?

A loop is possible ofcourse, provided you first check if each of the vars was set in the first place.

[Anon]

Hi Vincent.
Reason is that the vars are used to print values in forms when the user input is incorrect and a few other similar things. Somtimes though I just want a blank form.
It works fine now but I want the code to be easier to re-use.

( I think I might recode using an array to hold these values)

Nick

[[deleted]]

But don't you only set the vars once an error happens?
like:
check the form data
some field is wrong, set a var to 'error in this field'
re-print the form and 'error in this field' shows up.

so you'd start with empty vars for the error messages, and once the form is printed the vars die with the script.

[Anon]

Well, i's one big script and the same form is printed to handle a few different things. Teh form fields always has a value of $temp_xxx and sometime I need to make sure the form is blank and sometimes not.
The scropt handles DB admin for content and I'd like to use it for other DG's so looping as mentioned in the first post would allow me to just change the form to suit the content rather than sifting through the whole script changing and adding $temp_xxx's.
If yu don't get what I'm talking about don't worry, your helps always appreciated but I think I may have to just battle this one out on my own as it's hard to explain 🙂

Much thanks

Nick

[[deleted]]

Ah, now I see why you want to empty the vars.
Are you sure you want ti unset them and not just empty them?

Anyway, here's a simple routine that should do the job:

$aVars = 'this|that|foo|bar';
$aArray = explode('|', $aVars);
for ($t=0;$t<count($aArray);$t++)
{
unset(${'temp_'.$aArray[$t]});
};