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<html>
<head>
<script>
function showUser(str) {
    if (str == "") {
        document.getElementById("txtHint").innerHTML = "";
        return;
    } else {
        if (window.XMLHttpRequest) {
            // code for IE7+, Firefox, Chrome, Opera, Safari
            xmlhttp = new XMLHttpRequest();
        } else {
            // code for IE6, IE5
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
        }
        xmlhttp.onreadystatechange = function() {
            if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
                document.getElementById("txtHint").innerHTML = xmlhttp.responseText;
            }
        };
        xmlhttp.open("GET","testmysql.php?q="+str,true);
        xmlhttp.send();
    }
}
</script>
</head>
</html>

<html>
<head>
<script type="text/javascript" src="show.js"></script>
<style>
table {
    width: 100%;
    border-collapse: collapse;
}

table, td, th {
    border: 1px solid black;
    padding: 5px;
}

th {text-align: left;}
</style>
</head>
<body>


<?php

//Sample Database Connection Script

//Setup connection variables, such as database username
//and password
$hostname="localhost";
$username="root";
$password="";
$dbname="grocery";
$usertable="grocery";
$yourfield = "NAME";
$q = intval($_GET['q']);
//Connect to the database
$connection = mysqli_connect($hostname, $username, $password);
mysqli_select_db($connection, $dbname);
$query="SELECT * FROM user WHERE id = '".$q."'";
$result = mysqli_query($connection,$query);

echo "<table>
<tr>
<th>Name</th>
<th>Price</th>
<th>Amount</th>
</tr>";
if($result){
while($row = mysqli_fetch_array($result)) {
    echo "<tr>";
    echo "<td>" . $row['NAME'] . "</td>";
    echo "<td>" . $row['PRICE'] . "</td>";
    echo "<td>" . $row['AMOUNT'] . "</td>";
    echo "</tr>";
    }
}
echo "</table>";
mysqli_close($connection);
/*
//Setup our query
//$query = "SELECT * FROM $usertable";

Run the Query
$result = mysqli_query($connection,$query);

//If the query returned results, loop through
// each result
if($result)
{
  while($row = mysqli_fetch_array($result))
  {
    $name = $row["$yourfield"];
    echo "Name: " . $name;

  }
}
*/
?>
</body>
</html>