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. 
  1. <!DOCTYPE html>
  2. <html lang="en">
  3. 	<head>
  4. 		<meta charset="UTF-8" name="viewport" content="withd=device-width, initial-scale=1"/>
  5. 		<link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
  6. 	</head>
  7. <body>
  8. 	<nav class="navbar navbar-default">
  9. 		<div class="container-fluid">
  10. 			<a class="navbar-brand" href="https://sourcecodester.com">Sourcecodester</a>
  11. 		</div>
  12. 	</nav>
  13. 	<div class="col-md-3"></div>
  14. 	<div class="col-md-6 well">
  15. 		<h3 class="text-primary">PHP - Get Total Days In A Month</h3>
  16. 		<hr style="border-top:1px dotted;"/>
  17. 		<div class="col-md-4">
  18. 			<form method="POST" action="">	
  19. 				<div class="form-group">
  20. 					<label>Month</label>
  21. 					<select class="form-control" name="month" required="required">
  22. 						<option value="">Select month</option>
  23. 						<?php
  24. 							$months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
  25. 							for($i = 1; $i<=12; $i++){
  26. 								echo "<option value='".$i."'>".$months[$i - 1]."</option>";
  27. 							}
  28. 						?>
  29. 					</select>
  30. 				</div>
  31. 				<div class="form-group">
  32. 					<label>Year</label>
  33. 					<select class="form-control" name="year" required="required">
  34. 						<option value="">Select year</option>
  35. 						<?php
  36. 							$year = date("Y", strtotime("+8 HOURS"));
  37. 							for($y = $year; $y>=1965; $y--){
  38. 								echo "<option value='".$y."'>".$y."</option>";
  39. 							}
  40. 						?>
  41. 					</select>
  42. 				</div>
  43. 				<center><button name="get" class="btn btn-primary">Total Days</button></center>
  44. 			</form>
  45. 		</div>
  46. 		<div class="col-md-8">
  47. 			<?php include 'get_total_days.php'?>
  48. 		</div>
  49. 	</div>
  50. </body>
  51. </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 
  1. <?php
  2. 	if(ISSET($_POST['get'])){
  3. 		$month = $_POST['month'];
  4. 		$year = $_POST['year'];
  5. 		$months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
  6. 		$calculate = cal_days_in_month(CAL_GREGORIAN,$month,$year);
  7. 		echo "<center><h2>Total of <span class='text-danger'>".$calculate."</span> days in <span class='text-success'>".$months[$month - 1]." ".$year."</span><h2></center>";
  8. 	}
  9. ?>
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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