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Simple calculate script

/ Published in: PHP
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Simple as pie and chips...

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  1. <?php
  2.  
  3. if(isset($_POST['sum1']) && isset($_POST['sum2']) && isset($_POST['calculate']))
  4. {
  5. 	$sum1 = strip_tags($_POST['sum1']);
  6. 	$sum2 = strip_tags($_POST['sum2']);
  7. 	$task = $_POST['calculate'];
  8.  
  9. 	if(!is_numeric($sum1) || !is_numeric($sum2))
  10. 	{
  11. 		echo 'Fuck you, you dirty little cunt!';
  12. 	}
  13. 	else
  14. 	{
  15. 		switch($task)
  16. 		{
  17. 			case 'add':
  18. 				echo $sum1 . ' + ' . $sum2 . ' = ' . $sum1 + $sum2;
  19. 				break;
  20. 			case 'multiply':
  21. 				echo $sum1 . ' x ' . $sum2 . ' = ' . $sum1 * $sum2;
  22. 				break;
  23. 			case 'subtract':
  24. 				echo $sum1 . ' - ' . $sum2 . ' = ' . $sum1 - $sum2;
  25. 				break;
  26. 			default:
  27. 				echo 'Get fucked!';
  28. 				break;
  29. 		}
  30. 	}
  31. }
  32.  
  33. ?>
  34.  
  35. <form method="post" action="#">
  36.  
  37. 	<p>
  38. 		<label>First Number: </label>
  39. 		<input type="text" name="sum1" value="" />
  40. 	</p>
  41.  
  42. 	<p>
  43. 		<select name='calculate'>
  44. 			<option value='null'>Choose...</option>
  45. 			<option value='add'>+</option>
  46. 			<option value='multiply'>x</option>
  47. 			<option value='subtract'>-</option>
  48. 		</select>
  49. 	</p>
  50.  
  51. 	<p>
  52. 		<label>Second Number: </label>
  53. 		<input type="text" name="sum2" value="" />
  54. 	</p>
  55.  
  56. 	<p>
  57. 		<input type="submit" name="submit" value="Calculate" />
  58. 	</p>
  59. </form>

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