Created
September 18, 2015 15:18
-
-
Save jkuip/43bb6716e0e907f74b49 to your computer and use it in GitHub Desktop.
Simple PHP calculator
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Calculator</title> | |
| <meta charset="utf-8"> | |
| <meta http-equiv="X-UA-Compatible" content="IE=edge"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet"> | |
| </head> | |
| <body> | |
| <div class="container" style="margin-top: 50px"> | |
| <?php | |
| // If the submit button has been pressed | |
| if(isset($_POST['submit'])) | |
| { | |
| // Check number values | |
| if(is_numeric($_POST['number1']) && is_numeric($_POST['number2'])) | |
| { | |
| // Calculate total | |
| if($_POST['operation'] == 'plus') | |
| { | |
| $total = $_POST['number1'] + $_POST['number2']; | |
| } | |
| if($_POST['operation'] == 'minus') | |
| { | |
| $total = $_POST['number1'] - $_POST['number2']; | |
| } | |
| if($_POST['operation'] == 'times') | |
| { | |
| $total = $_POST['number1'] * $_POST['number2']; | |
| } | |
| if($_POST['operation'] == 'divided by') | |
| { | |
| $total = $_POST['number1'] / $_POST['number2']; | |
| } | |
| // Print total to the browser | |
| echo "<h1>{$_POST['number1']} {$_POST['operation']} {$_POST['number2']} equals {$total}</h1>"; | |
| } else { | |
| // Print error message to the browser | |
| echo 'Numeric values are required'; | |
| } | |
| } | |
| ?> | |
| <!-- Calculator form --> | |
| <form method="post" action="calculator.php"> | |
| <input name="number1" type="text" class="form-control" style="width: 150px; display: inline" /> | |
| <select name="operation"> | |
| <option value="plus">Plus</option> | |
| <option value="minus">Minus</option> | |
| <option value="times">Times</option> | |
| <option value="divided by">Divided By</option> | |
| </select> | |
| <input name="number2" type="text" class="form-control" style="width: 150px; display: inline" /> | |
| <input name="submit" type="submit" value="Calculate" class="btn btn-primary" /> | |
| </form> | |
| </div> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Are you a student, beginner developer, or someone working on an academic PHP project? We’ve compiled a powerful collection of free PHP calculators online – complete with source code. These ready-made tools are perfect for learning PHP, customizing for your own needs, or using directly in websites and applications. Here’s a curated list of our free PHP calculator projects, all available for instant download:
https://www.coderobotics.com/product/simple-loan-calculator
https://www.coderobotics.com/product/salary-paycheck-calculator
https://www.coderobotics.com/product/property-loan-calculator
https://www.coderobotics.com/product/interest-loan-calculator
https://www.coderobotics.com/product/auto-loan-calculator
https://www.coderobotics.com/product/401k-savings-calculator
https://www.coderobotics.com/product/simple-bmi-calculator
More details and download link - https://www.coderobotics.com/product-category/calculators