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An Adventure in arbitrary PHP in WordPress.

posted August 6th, 2009 to Code, Server Side

One of the finishing touches I wanted to add to this blog theme was a copyright
statement in roman numerals. Inserting arbitrary PHP into WordPress isn’t as straightforward as it should be, so I’ve outlined instructions below:

1. Edit the functions.php file of your theme to add the following code (courtesy Pradeep S).

// A function to return the Roman Numeral, given an integer
  function numberToRoman($num){
    // use int value
    $n = intval($num);
    $result = '';
    $lookup = array(
      'M' => 1000, 
      'CM' => 900, 
      'D' => 500, 
      'CD' => 400,
      'C' => 100, 
      'XC' => 90, 
      'L' => 50, 
      'XL' => 40,
      'X' => 10, 
      'IX' => 9, 
      'V' => 5, 
      'IV' => 4, 
      'I' => 1
     );
 
    foreach ($lookup as $roman => $value){
      $matches = intval($n / $value);
      $result .= str_repeat($roman, $matches);
      $n = $n % $value;
  }
  return $result;
}

2. Edit the footer.php file in the theme to add a reference to the new function in the copyright block.

    <div id="footer" class="grid_12">
      <p>&copy; <?php echo numberToRoman(date("Y")); ?></p>
    </div>
  <?php wp_footer(); ?>
</body>

3. You’re done!

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One Response to “An Adventure in arbitrary PHP in WordPress.”

  1. Diudiordine says:
    December 11, 2009 at 3:51 pm

    Fantastic post, I did not thought it would be so great when I saw your url!

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