• From: Massachusetts, USA
  • Registered: October 4, 2009
  • Posts: 23

Topic: [TUTORIAL] How to make a simple calculator

Hello,

In this tutorial you will learn how to make a simple PHP calculator

<?php

if($submit)
{
   if($operator == '*')
   {
       echo $numa * $numb;
   } elseif($operator == '/')
   {
       echo $numa / $numb;
   } elseif($operator == '+')
   {
       echo $numa + $numb;
   } elseif($operator == '-')
   {
       echo $numa - $numb;
   }
} else { ?>
<form method="POST" action="<?php $_SERVER['PHP_SELF']; ?>">
 <input type="text" name="numa" size="10">
 <select name="operator">
 <option value="+">Add</option>
 <option value="-">Subtract</option>
 <option value="*">Multiply</option>
 <option value="/">Divide</option>
 </select>
 <input type="text" name="numb" size="10">
 <input type="submit" value="Calculate" name="submit">
</form>
<?php } ?>

Read more: http://www.webdesign.org/web/web-programming/php/php-calculator.10025.html#ixzz0TUVwwSds

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  • Registered: November 17, 2009
  • Posts: 10

Re: [TUTORIAL] How to make a simple calculator

That's simple enough and quick and easy, which is how I prefer it.  Thanks so much for taking the time to share it.  I needed a calculator code.

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