Calculating Remaining Days In A Month in PHP

June 30, 2020
PHP
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Calculating Remaining Days

In this tutorial, we will create a Calculating Remaining Days In A Month using PHP. This code can automatically calculate the remaining days when the user submitted a date. The system itself uses time () PHP built-in function that gets the actual date base on the machine set date by subtracting the total days in a month, and the given date will display the entire remaining day within the duration. This is a user-friendly kind of program feel free to modify it.

We will be using PHP as a scripting language and interpreter, which is mainly used on any web server, including camp, wamp, etc. It is being used to any popular websites, and it has a modern technology that can be easily used by the next generation.

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 The Interface

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

<!DOCTYPR 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 - Calculating Remaining Days In A Month</h3>
        <hr style="border-top:1px dotted #ccc;"/>
 
        <div class="col-md-3"></div>
        <div class="col-md-6">
            <form method="POST" action="">
                <div class="form-group">
                    <label>Please enter a date</label>
                    <input type="date" name="date" class="form-control"/>
                </div>
                <center><button class="btn btn-primary" name="calculate">Calculate</button></center>
            </form>
            <?php include 'calculate.php'?>
        </div>
    </div>
</body>	
</html>

Creating the Main Function

This code contains the main function of the application. This code will get the remaining days 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 calculate.php

<?php
    date_default_timezone_set("Etc/GMT-8");
    if(ISSET($_POST['calculate'])){
        $month=date("m", strtotime($_POST['date']));
        $day=date("d", strtotime($_POST['date']));
        $year=date("Y", strtotime($_POST['date']));
 
        $date=$year."-".$month."-".$day;
 
        $timestamp = strtotime($date);
 
        $remainingDays = (int)date('t', $timestamp) - (int)date('j', $timestamp);
 
        echo "<center><h3>There are <span class='text-primary'>".$remainingDays."</span> days remaining</h3></center>";
 
    }
 
?>

There you have it we successfully created Calculating Remaining Days In A Month 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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