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<?php$connect = mysqli_connect("localhost", "root", "", "testing");
 $sql = "SELECT * FROM tbl_customer";
 $result = mysqli_query($connect, $sql);
 ?>
 <html>
 <head>
 <title>Export MySQL data to Excel in PHP</title>
 <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
 <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
 </head>
 <body>
 <div class="container">
 <br />
 <br />
 <br />
 <div class="table-responsive">
 <h2 align="center">Export MySQL data to Excel in PHP</h2><br />
 <table class="table table-bordered">
 <tr>
 <th>Name</th>
 <th>Address</th>
 <th>City</th>
 <th>Postal Code</th>
 <th>Country</th>
 </tr>
 <?php
 while($row = mysqli_fetch_array($result))
 {
 echo '
 <tr>
 <td>'.$row["CustomerName"].'</td>
 <td>'.$row["Address"].'</td>
 <td>'.$row["City"].'</td>
 <td>'.$row["PostalCode"].'</td>
 <td>'.$row["Country"].'</td>
 </tr>
 ';
 }
 ?>
 </table>
 <br />
 <form method="post" action="export.php">
 <input type="submit" name="export" class="btn btn-success" value="Export" />
 </form>
 </div>
 </div>
 </body>
 </html>
 
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