Getting vars from in a loop

[JakesSA]

Hi all.

Question is. When you loop any data type, Is the a way of instead of printing them out with in that loop, to rather just store them there and then getting access to them later in the script.

Let me rather show you a working example:

//-----------this works fine -----prints -----1 2 3 4 5 6 7

 $arr = array(1,2,3,4,5,6,7);
 $x = count($arr);
  for($i=0;$i<$x;$i++)
     {
     echo $arr[$i] . " ";
   }

//----------this is what I want to do----------------------

 $arr = array(1,2,3,4,5,6,7);
 $x = count($arr);
  for($i=0;$i<$x;$i++)
     {
     $arr[$i] . " ";
   }

 //------latter in the script

if(isset($arr[$i]) && ($arr[$i] == 5))
     echo "Its in the loop";
        else echo "nothing";

May be is something small that Im over looking.
Any ideas?

[rohithmr]

well, if u dunt want to modify the data inside the variable (array in ur example), u dun need a loop, like:

$arr = array(1,2,3,4,5,6,7);

//and u can do this without using any loop
if(isset($arr[$i]) && ($arr[$i] == 5))
     echo "Its in the loop";
        else echo "nothing";

but u probably knew that already.In case u want to modify the data then u can do this:

$arr = array(1,2,3,4,5,6,7);

 $x = count($arr);
  for($i=0;$i<$x;$i++)
     {
     $arr[$i] .=  " "; // same as writing $arr[$i] = $arr[$i] . " "
   }

//latter in script
if(isset($arr[$i]) && ($arr[$i] == 5))
     echo "Its in the loop";
        else echo "nothing";

I dunt kno if this is waht u wanted, if not, can u make ur question a bit more clearer?

[mkarabulut]

I think you can solve your problem by using variable variables
Check out the code

$arr = array(1,2,3,4,5,6,7);
 $x = count($arr);
  for($i=0;$i<$x;$i++)
     {
     echo $arr[$i] . " ";

 //pay attention here
 $$arr[$i]=true;
   }

After below this code,you can check the existence of the variable with isset or empty..

[JakesSA]

To rohithmr :

I need to fetch the values from a db using a while loop, I then use a for loop (note: for and not foreach) to fetch each individual value.

I want to store these values in the loop temporarily, so that I can access them latter on in my script, as need be. Have you tried what you posted, because it doesnt work.... 🙁

To mkarabulut :

I also thought about using a variable variable, but it to doesnt seem to work aswell.

It seems like you almost need to set it to global as you would in a function, so that you can access it outside the loop.

Any other ideas?

😕

Thanks guys!

[mkarabulut]

@: I didn't get what is wrong with the variable variables ? Setting a variable as global is that simple thing if it is the problem.

function Afunction() {
 $arr = array(1,2,3,4,5,6,7);
 $x = count($arr);
  for($i=0;$i<$x;$i++)
     {
     echo $arr[$i] . " ";

 //pay attention here
 $GLOBALS[$$arr[$i]]=true;
   }

}