# PHP - Auto Convert Decimal To Octal Number System

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In this tutorial we will create a Auto Convert Decimal To Octal Number System using PHP. This code will automatically convert the given decimal numbert into octal number. The code use PHP POST method to initiate a method that forcefully convert the decimal number into an octal by passing the int argument in the PHP built-in function decoct. This is a user-friendly kind of program feel free to modify it.

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="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 - Auto Convert Decimal To Octal Number System</h3>		<hr style="border-top:1px dotted #ccc;"/>			<div class="col-md-3">				<form action="" method="POST">					<div class="form-group">						<label>Enter number</label>						<input type="number" name="decimal" class="form-control" required="required"/>					</div>					<center><button class="btn btn-primary" name="convert">Convert</button></center>				</form>			</div>			<div class="col-md-8">				<?php include'convert.php'?>			</div>	</div></body></html>`

## Creating the Main Function

This code contains the main function of the application. This code will convert the decimal number 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 convert.php

`<?php	if(ISSET(\$_POST['convert'])){		\$decimal = \$_POST['decimal']; 		\$octal = decoct(\$decimal); 		echo "<center><h3>The number <span class='text-primary'>".\$decimal."</span> in decimal is equal to <span class='text-primary'>".\$octal."</span> in Octal</h3></center>";	}?>`

There you have it we successfully created Auto Convert Decimal To Octal Number System 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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