PHP - Create JSON File From MySQLi

Submitted by razormist on Sunday, January 26, 2020 - 18:57.

In this tutorial we will create a Create JSON File From MySQLi using PHP. This code can create a JSON file from MySQLi database when user click the button. The code itself use PHP POST method to call specific function that will extract the MySQLi table into JSON file. This is a user-friendly kind of program feel free to modify it. We will be using JSON as a data management to store user data, and it will act as a database storage. It is an open-standard file format that uses human-readable text to transmit data objects into the local server.

Getting Started:

First you have to download & install XAMPP or any local server that run PHP scripts. Here's the link for XAMPP server https://www.apachefriends.org/index.html. And, this is the link for the bootstrap that i used for the layout design https://getbootstrap.com/.

Creating Database

Open your database web server then create a database name in it db_mysqli_json, after that click Import then locate the database file inside the folder of the application then click ok. tut1

Creating the database connection

Open your any kind of text editor(notepad++, etc..). Then just copy/paste the code below then name it conn.php.

<?php
        
        $conn = mysqli_connect('localhost', 'root', '', 'db_mysqli_json');
        
        if(!$conn){
                die("Error: Failed to connect to database!");
        }
?>

Creating The Interface

This is where we will create a simple form for our application. To create the forms simply copy and write it into your text editor, then save it as index.php.

<!DOCTYPE html>
<html lang="en">
        <head>
                <meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1"/>
                <link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
        </head>
<body>
        <nav class="navbar navbar-default">
                <div class="container-fluid">
                        <a class="navbar-brand" href="https://sourcecodester.com">Sourcecodester</a>
                </div>
        </nav>
        <div class="col-md-3"></div>
        <div class="col-md-6 well">
                <h3 class="text-primary">PHP - Create JSON File From MySQLi</h3>
                <hr style="border-top:1px dotted #ccc;"/>
                <div class="col-md-4">
                        <form action="save.php" method="POST">
                                <div class="form-group">
                                        <label>Firstname</label>
                                        <input class="form-control" type="text" name="firstname">
                                </div>
                                <div class="form-group">
                                        <label>Lastname</label>
                                        <input class="form-control" type="text" name="lastname" />
                                </div>
                                <div class="form-group">
                                        <label>Address</label>
                                        <input class="form-control" type="text" name="address" />
                                </div>
                                <button name="save" class="btn btn-primary"><span class="glyphicon glyphicon-save"></span> Save</button>
                        </form>
                </div>
                <div class="col-md-8">
                        <form method="POST" action="create.php">
                                <button class="btn btn-success pull-right"><span class="glyphicon glyphicon-export"></span> Create JSON File</button>
                        </form>
                        <br /><br />
                        <table class="table table-bordered">
                                <thead class="alert-info">
                                        <tr>
                                                <td>Firstname</td>
                                                <td>Lastname</td>
                                                <td>Address</td>
                                        </tr>
                                </thead>
                                <tbody>
                                        <?php
                                                require 'conn.php';
                                                $query = mysqli_query($conn, "SELECT * FROM `member`");
                                                while($fetch = mysqli_fetch_array($query)){
                                        ?>
                                        <tr>
                                                <td><?php echo $fetch['firstname']?></td>
                                                <td><?php echo $fetch['lastname']?></td>
                                                <td><?php echo $fetch['address']?></td>
                                        </tr>
                                        <?php
                                                }
                                        ?>
                                </tbody>
                        </table>
                </div>
        </div>
</body>
</html>

Creating the PHP Query

This code contains the php query of the application. This code will store the data input to MySQLi database server. To make this just copy and write these block of codes below inside the text editor, then save it as save.php.

<?php
        require_once 'conn.php';
 
        if(ISSET($_POST['save'])){
                $firstname=$_POST['firstname'];
                $lastname=$_POST['lastname'];
                $address=$_POST['address'];
                        
                mysqli_query($conn, "INSERT INTO `member` VALUES('', '$firstname', '$lastname', '$address')") or die(mysqli_error());
                
                header('location: index.php');
        }
?>

Creating the Main Function

This code contains the main function of the application. This code will extract the MySQLi data into JSON file. To make this just copy and write these block of codes below inside the text editor, then save it as create.php

<?php
        require 'conn.php';
        
        $output = "";
        
        header("Content-Type: application/json  ");    
        header("Content-Disposition: attachment; filename=data.json");  
        header("Pragma: no-cache"); 
        header("Expires: 0");
 
        $query = mysqli_query($conn, "SELECT * FROM `member`");
        
        $array = array();
        
        while($fetch = mysqli_fetch_assoc($query)){
                $array[] = $fetch;
        }
 
        $output .= 
        "<pre>".print_r($array).'</pre>';
        
?>

There you have it we successfully created Create JSON File From MySQLi using PHP. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!

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