Tutorial: Create JSON File From MySQLi in PHP
In this tutorial, we will create a Create JSON File From MySQLi using PHP. This code can generate a JSON file from the MySQLi database when the user clicks the button. The system itself uses the PHP POST method to call a specific function that will extract the MySQLi table into a JSON file. This is a user-friendly kind of program feel free to modify it.
We will be using JSON as data management to store user data, and it will act as 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 runs PHP scripts. Here’s the link for the 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.
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!
