PHP - Get Total Days In A Month

Submitted by razormist on Saturday, November 9, 2019 - 17:35.

In this tutorial we will create a Get Total Days In A Month using PHP. This code will get the total days in a month when user submit the required information. The code itself use a PHP POST method to initiate a function that get the total days in a month using cal_days_in_month() by setting the required parameter in order to display the result. This is a user-friendly kind of program, feel free to use it and modify it as your own. We will be using PHP as a scripting language and interpreter that is used primarily on any webserver including xamp, wamp, etc. It is being use to any famous websites and it has a modern technology that can easily be use by the next generation.

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="withd=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 - Get Total Days In A Month</h3>
                <hr style="border-top:1px dotted;"/>
                <div class="col-md-4">
                        <form method="POST" action="">  
                                <div class="form-group">
                                        <label>Month</label>
                                        <select class="form-control" name="month" required="required">
                                                <option value="">Select month</option>
                                                <?php
                                                        $months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
                                                        for($i = 1; $i<=12; $i++){
                                                                echo "<option value='".$i."'>".$months[$i - 1]."</option>";
                                                        }
                                                ?>
                                        </select>
                                </div>
                                <div class="form-group">
                                        <label>Year</label>
                                        <select class="form-control" name="year" required="required">
                                                <option value="">Select year</option>
                                                <?php
                                                        $year = date("Y", strtotime("+8 HOURS"));
                                                        for($y = $year; $y>=1965; $y--){
                                                                echo "<option value='".$y."'>".$y."</option>";
                                                        }
                                                ?>
                                        </select>
                                </div>
                                <center><button name="get" class="btn btn-primary">Total Days</button></center>
                        </form>
                </div>
                <div class="col-md-8">
                        <?php include 'get_total_days.php'?>
                </div>
        </div>
</body>
</html>

Creating the Main Function

This code contains the main function of the application. This code will get the total days in a month 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 get_total_days.php

<?php
        if(ISSET($_POST['get'])){
                $month = $_POST['month'];
                $year = $_POST['year'];
                $months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
                $calculate = cal_days_in_month(CAL_GREGORIAN,$month,$year);
                echo "<center><h2>Total of <span class='text-danger'>".$calculate."</span> days in <span class='text-success'>".$months[$month - 1]." ".$year."</span><h2></center>";
        }
?>

There you have it we successfully created a Get Total 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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