vb.org Archive - array gone wrong.

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Red Blaze

03-27-2006 06:03 PM

array gone wrong.

This is the little piece of code I'm trying to get working.

PHP Code:


		
			
<?php

$priceids = $row_call_albums['priceids'];

$arr = array($priceids);

foreach ($arr as $value) {

   $value = $value * 2;

   echo $value;

}

?>

In this case, $priceids calls 1, 2, 3.

Now, it does call it, but it doesn't loop. It does 1x2, and stops there. But if I replace "$priceids" with "1, 2, 3", it works just fine. It multiplies 1x2, then 2x2, then 3x2.

The results with $priceids in the array is just "2". But the results for "1, 2, 3" in the array is "246".

Is there a way around this issue? Thanks in advance.

sabret00the

03-27-2006 06:06 PM

try

PHP Code:


		
			
<?php
$priceids = $row_call_albums['priceids'];
$arr = array($priceids);
print_r($arr);
/*foreach ($arr as $value) {
   $value = $value * 2;
   echo $value;
}*/
?>

if it gives you an array then?

PHP Code:


		
			
<?php
$priceids = $row_call_albums['priceids'];
$arr = array($priceids);
foreach ($arr as $key => $value)
{
   $key = $value * 2;
   echo $key;
}
?>

Red Blaze

03-27-2006 06:12 PM

This is my result when I put
print_r($arr);

Array ( [0] => 1, 2, 3 )

And when I tried $arr as $key => $value, gave me the same result as before. Just plain 2.

sabret00the

03-27-2006 10:46 PM

the fix is

PHP Code:


		
			
<?php
$priceids = $row_call_albums['priceids'];
$arr = explode(" ", $priceids);
foreach ($arr as $key => $value)
{
   $key = $value * 2;
   echo $key;
}
?>

Code Monkey

03-28-2006 01:03 AM

Quote:

Originally Posted by sabret00the

the fix is

PHP Code:


		
			
<?php
$priceids = $row_call_albums['priceids'];
$arr = explode(" ", $priceids);
foreach ($arr as $key => $value)
{
   $key = $value * 2;
   echo $key;
}
?>

You can cut out a line of code by just using this.

PHP Code:


		
			
$arr = explode(' ', $row_call_albums['priceids']);

No sense adding another variable to memory when it's not needed.

Actually, if the rusults of $row_call_albums['priceids'] has the format of 1, 2, 3 then you should explode it into array with ',' not ' '.

Paul M

03-28-2006 01:24 AM

Since they are comma seperated the explode should be using a comma, not a space ;

Quote:

$arr = explode(",", $priceids);

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