drupal 7 - what is the use of classes_array in drupal7 template.php -
in template.php many times used classes_array..am not getting meaning , why using,..what purpose of classes_array , when have use in drupal7 .tpl.php
example code: if(in_array('administrator',array_values($variables['user']->roles))) { $variables['classes_array'][]="debug"; }
$variables['classes_array'] used in preprocess functions. adds classes used in rendering element processed. in example, class named "debug" added html container of rendered element: if actual code
function <your theme>_preprocess_html(&$variables) { if (in_array('administrator',array_values($variables['user']->roles))) { $variables['classes_array'][]="debug"; } } your theme output body tag like
<body class='debug [...other classes...]'> for users administrator role.
you can add classes nodes, or other kind of elements preprocess hook available. e.g. write node preprocess function:
function <your theme>_preprocess_node($variables) { $classes_array[] = 'my-class'; } if wanted add 'my-class' every node of site.
in general, not find $classes_array among defined variables in tpl.php files. theme will, of times, implode them in $classes variable. must noted, however, kind of confusion arised on time, different themes may use $classes_array, $attribute_array, $classes, $attributes['class'] , on same purpose, should check theme's documentation find out suits case.
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