In this tutorial we will create a
Delete JSON File Data using PHP. This code can delete a data from a JSON file with when user click delete button. The code use PHP
POST method to call a function that instantly delete a data from JSON object using
unset() with an argument of json data and the index position that will be deleted. 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 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 - Delete JSON File Data</h3>
<hr style="border-top:1px dotted #ccc;"/>
<div class="col-md-4">
<form method="POST" action="insert.php">
<div class="form-group">
<label>Firstname</label>
<input type="text" class="form-control" name="firstname" required="required"/>
</div>
<div class="form-group">
<label>Lastname</label>
<input type="text" class="form-control" name="lastname" required="required"/>
</div>
<div class="form-group">
<label>Address</label>
<input type="text" class="form-control" name="address" required="required"/>
</div>
<center><button class="btn btn-primary" name="insert">Insert</button></center>
</form>
</div>
<div class="col-md-8">
<table class="table table-bordered table-striped">
<thead class="alert-info">
<th>Firstname</th>
<th>Lastname</th>
<th>Address</th>
<th>Action</th>
</thead>
<tbody>
<?php
$index=0;
foreach($data as $fetch){
?>
<tr>
<td><?php echo $fetch->firstname?></td>
<td><?php echo $fetch->lastname?></td>
<td><?php echo $fetch->address?></td>
<td><a class="btn btn-danger" href="delete.php?id=<?php echo $index?>">Delete</a></td>
</tr>
<?php
$index++;
}
?>
</tbody>
</table>
</div>
</div>
</body>
</html>
Creating the Insert Function
This code contains the insert function of the application. This code will store the inputted forms as a JSON object and save it in the JSON file. To make this just copy and write these block of codes below inside the text editor, then save it as
insert.php.
<?php
if(isset($_POST['insert'])){
'firstname' => $_POST['firstname'],
'lastname' => $_POST['lastname'],
'address' => $_POST['address']
);
$json[] = $array;
}
?>
Creating the Main Function
This code contains the main function of the application. This code will delete the JSON object from a JSON file when the button is clicked. To make this just copy and write these block of codes below inside the text editor, then save it as shown below.
members.json
[
{
"firstname": "John",
"lastname": "Smith",
"address": "New York"
},
{
"firstname": "Claire",
"lastname": "Temple",
"address": "Racoon City"
},
{
"firstname": "Michael",
"lastname": "Leonard",
"address": "Japan"
}
]
delete.php
<?php
$id = $_GET['id'];
header('location: index.php'); ?>
There you have it we successfully created
Delete JSON File Data 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!