variable variables?

[justravis]

i am dynamically creating a list of checkboxes for each job title in a db.

 

the checkbox array names are something like 'job2quest[]' & the 'job5quest[]'...

 

since i dont necessarily kno which jobs will appear, i dont want to hardcode the variables when the form is submitted.

 

is there a way to pick apart post variable names, so the script can find the checkbox arrays?

 

And/or is there a way to loop thru them?  (like if they could be named job[]quest[])

 

thank you!!!

[dbo]

Maybe not the best solution but one way I've done it in the past is use a syntax like row_<integer here> and then you loop through all the rows.

 

ie.

 

$row = "row_$i";

$test = $_POST[$row];

[tibberous]

Are the all going to start with 'job'? Why use substr on the key on _GET or _POST?

 

Something like...

 

foreach($_POST as $key => $postvar){

if(!strcasecmp(substr($key, 0, 3), "job")){

  list($firstpart) = explode('quest', $key);

  $firstpart .= "quest";

  $$firstpart = $postvar;

}

}

[dbo]

Oooooh oooh interesting approach, I like it. Nice tibberous!

[tibberous]

Thanks

 

 

[justravis]

yes, i believe that is the approach i was looking for...i will try it tomorrow..thx

[justravis]

OK...i altered your suggestion a bit, but I wanted to ask if there were advantages to using strcasecmp() (or any other differences in yr code) that i'm not aware of?

 

foreach($_POST as $key => $postvar)
{
     #Var name start with 'job'?
     if(substr($key,0,2)=='job')
     {
           #Var name end with 'quest'?
           if(substr($key,-5)=='quest)
           {
                #Cycle thru checkbox array.
                foreach($postvar as $quest)
                {
                      echo "$quest<br />";
                 }
            }
     }
}

 

THANKS AGAIN!  You really got my mind going!  I WAS STUCK!!!

[tibberous]

Strcasecmp is just case insensitive. Pretty sure substr($key,0,2) only returns a string with a length of 2, ie ('jo'). Neat that you use substr with a negative start, I never think of that but I'd bet I use explode more than I have to if I remembered it did that.