การอัพเดตข้อมูล รบกวนเเอดมินหรือท่านใดพอจะมีเเนวทางบอกด้วยนะครับขอบคุณครับ

<?php
$objConnect = mysql_connect("localhost","root","0000");
$objDB = mysql_select_db("data");

$strid = $_POST["id"];
$cardid = $_POST["cardid"];
$name = $_POST["name"];
$home = $_POST["home"];
$meter_old = $_POST["meter_old"];
$meter_present = $_POST["meter_present"];
$month = $_POST["month"];
$amount =


/*** Check name ***/
$strSQL = "SELECT * FROM data WHERE name = '".$name."' AND id != '".$strid."' ";
$objQuery = mysql_query($strSQL);
$objResult = mysql_fetch_array($objQuery);
if($objResult)
{
$arr['StatusID'] = "0"; 
$arr['Error'] = "name";	
echo json_encode($arr);
exit();
}

/*** Update ***/

$strSQL = " UPDATE data SET 

meter_old = '".$meter_old."'
,meter_present = '".$meter_present."'
,month = '".$month."'
,deadline = '".$deadline."'
,amount = '".$amount."'
,datetime = '".$NOW."'

WHERE id = '".$strid."'
";

$objQuery = mysql_query($strSQL);
if(!$objQuery)
{
$arr['StatusID'] = "0"; 
$arr['Error'] = "Cannot save data!";	
}
else
{
$arr['StatusID'] = "1"; 
$arr['Error'] = "";	
}

/**
$arr['StatusID'] // (0=Failed , 1=Complete)
$arr['Error'] // Error Message
*/

mysql_close($objConnect);

echo json_encode($arr);
?>