Fill out power.php bellow:

  1. <!DOCTYPE {3:SAC:=}3{html:SAC:=}>
  2. <html>
  3. <head>
  4. <meta charset="utf-8" />
  5. <title>Power</title>
  6. </head>
  7. <body>
  8. <h1>Power</h1>
  9. <?php
  11. {5:SAC:=}5{function:SAC:=} show($text, $val, $unit) {
  12. echo '<p>'.$text.' = '.$val.' '.$unit.'</p>' ;
  13. }
  15. $factor = ($_POST['unit'] == 'mA') ? .001 : 1 ;
  17. $V = $_POST['voltage'] ;
  18. $I = $_POST['current'] * $factor ;
  19. $P = $V * $I ;
  21. show('Voltage', $V, 'V') ;
  22. show('Current', $I, 'A') ;
  23. show('Power', $P, 'W') ;
  25. ?>
  26. <p><a href="power.html">Do it again</a></p>
  27. </body>
  28. </html>