php export database to csv code example

Example 1: download csv php mysql

CREATE TABLE `users` (
  `id` int(11) NOT NULL PRIMARY KEY AUTO_INCREMENT,
  `username` varchar(80) NOT NULL,
  `name` varchar(50) NOT NULL,
  `gender` varchar(10) NOT NULL,
  `email` varchar(70) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

=========================================================
// this config.php
<?php
$host = "localhost"; /* Host name */
$user = "root"; /* User */
$password = ""; /* Password */
$dbname = "tutorial"; /* Database name */

$con = mysqli_connect($host, $user, $password,$dbname);
// Check connection
if (!$con) {
 die("Connection failed: " . mysqli_connect_error());
}


=================================================================
// prints contents of db to a table with an export button
<?php 
include "config.php"; // Database connection file
?>

<div class="container">
 
 <form method='post' action='download.php'>
  <input type='submit' value='Export' name='Export'>
 
  <table border='1' style='border-collapse:collapse;'>
    <tr>
     <th>ID</th>
     <th>Username</th>
     <th>Name</th>
     <th>Gender</th>
     <th>Email</th>
    </tr>
    <?php 
     $query = "SELECT * FROM users ORDER BY id asc";
     $result = mysqli_query($con,$query);
     $user_arr = array();
     while($row = mysqli_fetch_array($result)){
      $id = $row['id'];
      $uname = $row['username'];
      $name = $row['name'];
      $gender = $row['gender'];
      $email = $row['email'];
      $user_arr[] = array($id,$uname,$name,$gender,$email);
   ?>
      <tr>
       <td><?php echo $id; ?></td>
       <td><?php echo $uname; ?></td>
       <td><?php echo $name; ?></td>
       <td><?php echo $gender; ?></td>
       <td><?php echo $email; ?></td>
      </tr>
   <?php
    }
   ?>
   </table>
   <?php 
    $serialize_user_arr = serialize($user_arr);
   ?>
  <textarea name='export_data' style='display: none;'><?php echo $serialize_user_arr; ?></textarea>
 </form>
</div>
    
    
    
    =============================================================
  //Create a new download.php file -- code below//  
    
    <?php
$filename = 'users.csv';
$export_data = unserialize($_POST['export_data']);

// file creation
$file = fopen($filename,"w");

foreach ($export_data as $line){
 fputcsv($file,$line);
}

fclose($file);

// download
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=".$filename);
header("Content-Type: application/csv; "); 

readfile($filename);

// deleting file
unlink($filename);
exit();

Example 2: how to export php mysql data to csv through php

<?php
/*
* iTech Empires:  Export Data from MySQL to CSV Script
* Version: 1.0.0
* Page: DB Connection
*/
 
// Connection variables
$host = "localhost"; // MySQL host name eg. localhost
$user = "root"; // MySQL user. eg. root ( if your on localserver)
$password = ""; // MySQL user password  (if password is not set for your root user then keep it empty )
$database = "test"; // MySQL Database name
 
// Connect to MySQL Database
$con = new mysqli($host, $user, $password, $database);
 
// Check connection
if ($con->connect_error) {
    die("Connection failed: " . $con->connect_error);
}
?>

Example 3: how to export php mysql data to csv through php

<?php
/*
* iTech Empires:  Export Data from MySQL to CSV Script
* Version: 1.0.0
* Page: Index
*/
 
// Database Connection
require("db_connection.php");
 
// List Users
$query = "SELECT * FROM users";
if (!$result = mysqli_query($con, $query)) {
    exit(mysqli_error($con));
}
 
if (mysqli_num_rows($result) > 0) {
    $number = 1;
    $users = '<table class="table table-bordered">
        <tr>
            <th>No.</th>
            <th>First Name</th>
            <th>Last Name</th>
            <th>Email</th>
        </tr>
    ';
    while ($row = mysqli_fetch_assoc($result)) {
        $users .= '<tr>
            <td>'.$number.'</td>
            <td>'.$row['first_name'].'</td>
            <td>'.$row['last_name'].'</td>
            <td>'.$row['email'].'</td>
        </tr>';
        $number++;
    }
    $users .= '</table>';
}
 
?>
<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Export Data from MySQL to CSV Tutorial | iTech Empires</title>
    <!-- Bootstrap CSS File  -->
    <link rel="stylesheet" type="text/css" href="bootstrap/css/bootstrap.min.css"/>
</head>
<body>
<div class="container">
    <!--  Header  -->
    <div class="row">
        <div class="col-md-12">
            <h2>Export Data from MySQL to CSV</h2>
        </div>
    </div>
    <!--  /Header  -->
 
    <!--  Content   -->
    <div class="form-group">
        <?php echo $users ?>
    </div>
    <div class="form-group">
        <button onclick="Export()" class="btn btn-primary">Export to CSV File</button>
    </div>
    <!--  /Content   -->
 
    <script>
        function Export()
        {
            var conf = confirm("Export users to CSV?");
            if(conf == true)
            {
                window.open("export.php", '_blank');
            }
        }
    </script>
</div>
</body>
</html>