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Put classes around your body

/ Published in: PHP
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Put classes around your bodyy, to allow different colors for seperate pages and areas on your site.
IT will simply add a css-safe version of the first argument in an url. Say the url is /about_us/our_company the class will be
body.about-us
Requires phptemplate

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Copy this code and paste it in your HTML 
  1. /**
  2.  * Make additional variables available and override some core variables
  3.  */
  4. function _phptemplate_variables($hook, $vars) {
  5.   switch ($hook) {
  6.     case 'page': 
  7.       $vars['page_class'] = (($vars['is_front']) ? 'front' : _MyTheme_css_safe(arg(0)) );
  8.  
  9.       if (in_array($vars['page_class'], _MyTheme_list_top_level_classes())) {
  10.         $vars['has_menu_image'] = TRUE;
  11.       }
  12.     break;
  13.    }
  14.  
  15.   return $vars;
  16. }
  17.  
  18. /**
  19.  * Prepare the specified string for use as a CSS identifier.
  20.  */
  21. function _MyTheme_css_safe($string, $length = 36) {
  22.   // Replace or drop apostrophes based on user settings
  23.   $separator = '-';
  24.  
  25.   // Preserve alphanumerics, everything else becomes a separator
  26.   $pattern = '/[^a-zA-Z0-9]+/ ';
  27.   $output = preg_replace($pattern, $separator, $string);
  28.  
  29.   // Trim any leading or trailing separators (note the need to
  30.   // escape the separator if and only if it is not alphanumeric)
  31.   if ($separator) {
  32.     if (ctype_alnum($separator)) {
  33.       $seppattern = $separator;
  34.     }
  35.     else {
  36.       $seppattern = '\\'. $separator;
  37.     }
  38.     $output = preg_replace("/^$seppattern+|$seppattern+$/", "", $output);
  39.   }
  40.  
  41.   // Enforce the maximum component length
  42.   $output = drupal_substr($output, 0, $length);
  43.  
  44.   return $output;
  45. }
  46.  
  47. /**
  48.  * List with toplevel classes
  49.  * @TODO: you probably want to make this configurable somewhere;
  50.  **/
  51. function _MyTheme_list_top_level_classes() {
  52.   $list = array(
  53.     'node',
  54.     'taxonomy',
  55.     'user',
  56.     'profile',
  57.   );
  58.   return $list;
  59. }
  60.  
  61. /**
  62.  * The following takes place in page.tpl.php between 11PM and 12PM;
  63.  **/
  64. <?php
  65. //....
  66. <body class="<?php print $page_class ?>">
  67. //....
  68.     <?php if (!$is_front && $has_menu_image): ?>
  69.        <h2 class="content title" id="content-title-image"><?php print $title ?></h2>
  70.     <?php endif; ?>

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