PHP - Create Random Characters

Submitted by razormist on Sunday, June 16, 2019 - 13:39.
In this tutorial we will create a Create Random Characters using PHP. This code will generate a random characters when the user click the update button. The code use PHP POST method to initiate a method that generate a random char by passing the input text value in the GenerateChar(). 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. 
  1. <!DOCTYPE html>
  2. <html lang="en">
  3. 	<head>
  4. 		<meta charset="UTF-8" name="viewport" content="width=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 - Create Random Characters</h3>
  16. 		<hr style="border-top:1px dotted #ccc;"/>
  17. 		<div class="col-md-3">
  18. 			<form method = "POST">
  19. 				<div class="form-group">
  20. 					<label>Enter some length</label>
  21. 					<input type="number" min="1" max="20" name="length" class="form-control" require="required"/>
  22. 				</div>
  23.  
  24. 				<center><button class="btn btn-info" name="create"><span class="glyphicon glyphicon-random"></span> Create Char</button></center>
  25. 			</form>
  26. 		</div>
  27. 		<div class="col-md-6">
  28. 				<?php include 'character.php'?>
  29. 		</div>
  30.  
  31. 	</div>
  32. </body>
  33. </html>

Creating the Main Function

This code contains the main function of the application. This code will create a random characters 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 character.php 
  1. <?php
  2. 	if(ISSET($_POST['create'])){
  3. 		$length = $_POST['length'];
  4. 		echo '<center><h3 class="text-primary">'.GenerateChar($length).'</h3></center>';
  5. 	}
  6.  
  7. 	function GenerateChar($length) {
  8. 		$strings = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%^&*()_+';
  9. 		$stringLength = strlen($strings);
  10. 		$newStrings = '';
  11. 		for ($i = 0; $i < $length; $i++) {
  12. 			$newStrings .= $strings[rand(0, $stringLength - 1)];
  13. 		}
  14. 		return $newStrings;
  15. 	}
  16.  
  17. ?>
There you have it we successfully created Create Random Characters 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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