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Golden mean calculator for a given length of time

/ Published in: PHP
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This little bit of code is a calculator of the "golden mean" of a given length of time. For example: given a length of 1 minute and 0 seconds, the answer given will be 0:00:37. See U2's "With or Without You", the Greek Parthenon, the human body, etc.
Substitute your own preferred method of input filtering.
I am just a PHP amateur so don't hate on my code!

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  1. <?php
  2. require_once("class.inputfilter_clean.php");
  3. function sec2hms ( $sec, $padHours = false ) 
  4.   {
  5.     $hms = "";
  6.     $hours = intval( intval( $sec ) / 3600 ); 
  7.     $hms .= ( $padHours ) 
  8.           ? str_pad( $hours, 2, "0", STR_PAD_LEFT ). ':'
  9.           : $hours. ':';
  10.     $minutes = intval( ( $sec / 60 ) % 60 ); 
  11.     $hms .= str_pad( $minutes, 2, "0", STR_PAD_LEFT ). ':';
  12.     $seconds = intval( $sec % 60 ); 
  13.     $hms .= str_pad( $seconds, 2, "0", STR_PAD_LEFT );
  14.     return $hms;
  15.   }
  16. if ( $_POST["minutes"] or $_POST["seconds"] )
  17.   {
  18.     $myFilter = new InputFilter( $tags, $attr, $tag_method, $attr_method, $xss_auto );
  19.     $minutes = $myFilter->process( $_POST["minutes"] );
  20.     $seconds = $myFilter->process( $_POST["seconds"] );
  21.     $goodpoint = 0.6180339887 * ( $seconds + ( $minutes * 60 ) );
  22.     $answer = sec2hms( $goodpoint );
  23.   }
  24. ?>
  25. <html>
  26.  <head>
  27.   <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  28.   <title>
  29.    Golden Calculator
  30.   </title>
  31.  </head>
  32.  <body>
  33.   <form action="golden.php" method="post">
  34.    <p>
  35.     Min: <input type="text" name="minutes" />
  36.     Sec: <input type="text" name="seconds" />
  37.     <input type="submit" />
  38.    </p>
  39.   </form>
  40.   <p>
  41.    Answer: <strong><?php echo $answer; ?></strong>
  42.   </p>
  43.  </body>
  44. </html>

URL: http://ross.uber.name/golden.php

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