Re: Assign values in foreach-loop

Jordan Miller wrote:

Hello, You simply need the $key variable, then you can set a new value for $arr[$key] for each array element: <?php $arr = array(1, 2, 3, 4); foreach ($arr as $key => $value) { $arr[$key] = $value * 2; } // $arr is now array(2, 4, 6, 8) ?> http://www.php.net/foreach If you have PHP 5, you can perhaps more efficiently do this:

As of PHP 5, you can easily modify array's elements by preceding $value with &. This will assign reference instead of copying the value. <?php $arr = array(1, 2, 3, 4); foreach ($arr as &$value) { $value = $value * 2; } // $arr is now array(2, 4, 6, 8) ?>

Jordan

Or you can do it like that... Totally brain-faded on the $key bit. I've been bitten by this so many times that it's just in my head that you can't permanently modify the array. Cool stuff on the v5 referencing, I guess I'm gonna have to go back through the manual on everything and not just the new stuff. Thanks!