Using Jquery Ajax to retrieve data from Mysql

Question

list.php: A simple ajax code that I want to display only records of the Mysql table:

<html>

<head>
    <script src="jquery-1.9.1.min.js">
    </script>
    <script>
    (document).ready(function() {
        var response = '';
        .ajax({
            type: "GET",
            url: "Records.php",
            async: false,
            success: function(text) {
                response = text;
            }
        });

        alert(response);
    });
    </script>
</head>

<body>
    <div id="div1">
        <h2>Let jQuery AJAX Change This Text</h2>
    </div>
    <button>Get Records</button>
</body>

</html>

Records.php is the file to fetch records from Mysql.
In the Database are only two fields: 'Name', 'Address'.

<?php
    //database name = "simple_ajax"
    //table name = "users"
    con = mysql_connect("localhost","root","");
    dbs = mysql_select_db("simple_ajax",con);
    result= mysql_query("select * from users");
    array = mysql_fetch_row(result);
?>
<tr>
    <td>Name: </td>
    <td>Address: </td>
</tr>
<?php
    while (row = mysql_fetch_array(result))
    {
        echo "<tr>";
        echo "<td>row[1]</td>";
        echo "<td>row[2]</td>";
        echo "</tr>";
    }   
?>

This code is not working. Can someone please help me fix this?

narikkadan · Answer 1 · Jun 21, 2022

For retrieving data using Ajax + jQuery, you should write the following code:

 <html>
 <script type="text/javascript" src="jquery-1.3.2.js"> </script>

 <script type="text/javascript">

 $(document).ready(function() {

    $("#display").click(function() {                

      $.ajax({    //create an ajax request to display.php
        type: "GET",
        url: "display.php",             
        dataType: "html",   //expect html to be returned                
        success: function(response){                    
            $("#responsecontainer").html(response); 
            //alert(response);
        }

    });
});
});

</script>

<body>
<h3 align="center">Manage Student Details</h3>
<table border="1" align="center">
   <tr>
       <td> <input type="button" id="display" value="Display All Data" /> </td>
   </tr>
</table>
<div id="responsecontainer" align="center">

</div>
</body>
</html>

For mysqli connection, write this:

<?php 
$con=mysqli_connect("localhost","root","");

For displaying the data from database, you should write this :

<?php
include("connection.php");
mysqli_select_db("samples",$con);
$result=mysqli_query("select * from student",$con);

echo "<table border='1' >
<tr>
<td align=center> <b>Roll No</b></td>
<td align=center><b>Name</b></td>
<td align=center><b>Address</b></td>
<td align=center><b>Stream</b></td></td>
<td align=center><b>Status</b></td>";

while($data = mysqli_fetch_row($result))
{   
    echo "<tr>";
    echo "<td align=center>$data[0]</td>";
    echo "<td align=center>$data[1]</td>";
    echo "<td align=center>$data[2]</td>";
    echo "<td align=center>$data[3]</td>";
    echo "<td align=center>$data[4]</td>";
    echo "</tr>";
}
echo "</table>";
?>

I hope this helps.