In article <[EMAIL PROTECTED]>, 
[EMAIL PROTECTED] says...
> A friend of mine showed me this code recently.
> 
> function firstLogin_string() {
>       mt_srand(make_seed());
>       $pool = "AaBbCcDdEeFfGgHhIiJjKkLlM";
>       $length = 26;
>       for($i=0; $i < $length; $i++) {
>               $key .= $pool[mt_rand(0,strlen($pool)-1)];
>       }
>       return $key;
> }
> 
> look at the for loop. $pool is not an array but is being treated as such and
> the key happens to be the position in $pool and it'll take that letter and
> save it to $key. I've never seen this done before. What is this method
> called and what other neat tricks can you do in respect to this?
> 

This is documented behaviour - from the manual:

String access by character

Characters within strings may be accessed by specifying the zero-based 
offset of the desired character after the string in curly braces.
Note: For backwards compatibility, you can still use the array-braces. 
However, this syntax is deprecated as of PHP 4.

Use limitd only by your imagination :-)

-- 
David Robley
Temporary Kiwi!

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