$servername = "localhost";
$username = "root";
$password = "";
$dbname = "maindata";
// Create connection
$conn = mysqli_connect($servername, $username, $password, $dbname);
// Check connection
if (!$conn) {
 die("<center>Connection failed: " . mysqli_connect_error() . "</center");
}

$id = $_POST['id'];
$aname = $_POST['aname'];
$xsummary = $_POST['xsummary'];

$sql=mysql_query("SELECT * FROM info WHERE ID = $id");

if (mysql_num_rows($sql) == $id)
{
 $sql="update info set AccountName= '$aname', ExecutiveSummary='$xsummary'";
}
else {
 $sql="insert into AccountName= '$aname', ExecutiveSummary= '$xsummary'";
}