How To Generate Excel File In PHP


These are the following File structures for this tutorial: config.php (database connection file), index.php (For fetching data), generate-excel.php (For generating excel file), all in PHP functions.

Create a SQL table tblemployee.

CREATE TABLE `tblemploye` (
  `id` int(11) NOT NULL,
  `fullName` varchar(120) NOT NULL,
  `emailId` varchar(150) NOT NULL,
  `phoneNumber` int(11) NOT NULL,
  `department` varchar(100) NOT NULL,
  `joiningDate` varchar(100) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
ALTER TABLE `tblemploye`
  ADD PRIMARY KEY (`id`);
ALTER TABLE `tblemploye`
  MODIFY `id` int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=5;
COMMIT;

Now insert some data into this table.

INSERT INTO `tblemploye` (`id`, `fullName`, `emailId`, `phoneNumber`, `department`, `joiningDate`) VALUES
(1, 'Anuj kumar', '[email protected]', 1234567890, 'IT', '2018-05-01'),
(2, 'John', '[email protected]', 45455454, 'HR', '2017-08-12'),
(3, 'Demo', '[email protected]', 23423423, 'Account', '2016-10-01'),
(4, 'Test', '[email protected]', 834856384, 'IT', '2017-12-01');

Index.php in this file we will read the data from database.

?php
$query=mysqli_query($con,"select * from tblemploye");
$cnt=1;
while ($row=mysqli_fetch_array($query)) {
?>
  <tr>
                <td><?php echo $cnt;  ?></td>
                <td><?php echo $row['fullName']?></td>
                <td><?php echo $row['emailId']?></td>
                <td><?php echo $row['phoneNumber']?></td>
                <td><?php echo $row['department']?></td>
                <td><?php echo $row['joiningDate']?></td>
            </tr>
<?php
$cnt++;
} ?>
</table>

generate-excel.php in this file we will fetch the data from database and generate excel file for the same data.

<?php
// Database Connection file
include('config.php');
?>
<table border="1">
<thead>
<tr>
<th>Sr.</th>
<th>Name</th>
<th>Email id</th>
<th>Phone Number</th>
<th>Department</th>
<th>Joining Date</th>
</tr>
</thead>
<?php
// File name
$filename="EmpData";
// Fetching data from data base
$query=mysqli_query($con,"select * from tblemploye");
$cnt=1;
while ($row=mysqli_fetch_array($query)) {
?>
            <tr>
                <td><?php echo $cnt;  ?></td>
                <td><?php echo $row['fullName'];?></td>
                <td><?php echo $row['emailId'];?></td>
                <td><?php echo $row['phoneNumber'];?></td>
                <td><?php echo $row['department'];?></td>
                <td><?php echo $row['joiningDate'];?></td>
            </tr>
<?php
$cnt++;
// Genrating Execel  filess
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=".$filename."-Report.xls");
header("Pragma: no-cache");
header("Expires: 0");
} ?>
</table>

header(“Content-type: application/octet-stream”);
header(“Content-Disposition: attachment; filename=”.$filename.”-Report.xls”);
The content-type should be whatever it is known to be, if you know it. application/octet-stream is defined as “arbitrary binary data” in RFC 2046″.
Means “I don’t know what the hell this is. Please save it as a file, preferably named $filename.”-Report.xls”.
header(“Pragma: no-cache”);
cache-control is the HTTP/1.1 implementation . cache-control  used to prevent the client from caching the response.
header(“Expires: 0”);
The Expires header specifies when content will expire, or how long content is “fresh.” After this time, the portal server will always check back with the remote server to see if the content has changed.
Expires: 0
The value 0 indicates that the content expires immediately and would have to be re-requested before being displayed again.

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