Dogecoin faucet

<b>DOGE in faucet:
<?php
//Script made by Smiba from doges.org - http://bartstuff.eu/doge/
//DO NOT REMOVE MADE BY! I'm trying to help here, so just leaving 1 line would be the minimum you could do for me
 require_once 'jsonRPCClient.php';
 $doge = new jsonRPCClient('http://dogecoinrpc:PASSWORD@127.0.0.1:22555/');
 print_r($doge->getbalance());
echo "</b> - Please donate: DCp9uf6AaZTf4SSTmKmAhJPv5QnoEZh6S5<br />";

$username = $_POST['address'];
$ip = $_SERVER['REMOTE_ADDR'];
if(!empty($_POST['address'])) {
        if($doge->getbalance() < 20){
                echo "Dry faucet, please donate";
        }else{
                $check = $doge->validateaddress($username);
                if($check["isvalid"] == 1){
                        mysql_connect("127.0.0.1", "SQLUSER", "SQLPW")or die("cannot connect to server - Sorry");
                        mysql_select_db("SQLDB")or die("cannot select DB");
                        $time=time();
                        $time_check=$time-14400; //SET TIME 4 HOUR
                        $sql4="DELETE FROM users WHERE time<$time_check";
                        $result4=mysql_query($sql4);
                        $sql=sprintf("SELECT * FROM users WHERE address='%s' OR ip='$ip'",
                        mysql_real_escape_string($username));
                        $result=mysql_query($sql);
                        $count=mysql_num_rows($result);
                        if($count=="0"){
                                $sql1=sprintf("INSERT INTO users(address, time, ip)VALUES('%s', '$time', '$ip')",
                                mysql_real_escape_string($username));
                                $result1=mysql_query($sql1);
                                $amount = rand(2,20);
                                $doge->sendtoaddress($username, $amount);
                                echo "You've got ";
                                echo $amount;
                                echo " DOGE!";

                        }else{
                                echo "Much request, plz wait. You can get new DOGE every 4 hours!";
                        }
                }
        }
}
?>
<br />
<Form Name ="form1" Method ="POST" ACTION = "doge2.php">
<INPUT TYPE = "Text" VALUE ="" NAME = "address">
<INPUT TYPE = "Submit" Name = "Submit" VALUE = "Send">
</FORM>
<br/><br/>Script made by Smiba from doges.org