Alphanumeric Output into MySQL Database

Hello.
I have the script below that creates a list of random alphanumeric combinations.

include('db_connect.inc.php');
function md5this($length,$limit){
	while ($length<$limit){
		set_time_limit(0);
		$charset = "abcdefghijklmnopqrstuvwxyz0123456789";
		// Do not edit beyond this point!

		for($i=0;$i<strlen($charset);$i++)
			$x[]=$charset[$i];
			for($i=0,$z="",$e="echo ";$i<$length;$i++){
	 		   	$z.="foreach(\$x as \$y[$i])"; 
				$e.="\$y[$i].";
				
			}
			$evalinsert = eval($z.$e."\"<br />\";");


		$length++;
	}
}

mysql_query("INSERT INTO `md5Sums` (
			`id` ,
			`anValue`,
			`md5Sum`
			)
			VALUES (
			NULL , '$evalinsert', '".md5($evalinsert)."'
			);") or die(mysql_error());

Code (markup):

I know that it is connecting to the database and inserting data, but not the data that it is producing in my browser. It inserts a blank for anValue and a random hash for the md5Sum.
Is there any one that knows what I should do, or how to rewrite the script to allow it as an array.

Script output is http://tylerperroux.com/md5.php

Any help is much appreciated.
Thank you an advance.

 

Now the scope for $evalinsert is only inside the function "md5this" .So use $evalinsert as global and try .

 

Where are you call the function md5this?
Why it not returning any value?

 

Thanks for the fast response. Never got anything from PHPFreaks. Thank you
Sorry for that.
It is called by md5this(1,3)

And just to be sure is this how you set a global variable.
$GLOBALS['$evalinsert'];

Just not sure. I have never had to set any globals.
Thanks you

 

Im still getting just one entry per script run, but the script is outputing more than just that.