How to Change the Default List of Allowed Html Tags in Wordpress?

smallwei 7:00 pm on October 25, 2009 | Answers: 1    
Tags: core (6), default (16), html (10), html tags (3), list (6), php (41), wordpress (15), wp (2)

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• smallwei 7:05 pm on October 25, 2009
  

  This is tested working in WP2.8
  Note: Custom tags will only affect users. Admin can still use all the tags.

  You can create a plugin and add the following function and action hook into the plugin file. You can update the list to fit your need:

  add_action('init', 'edittag', 10);
  
  function edittag() {
    define('CUSTOM_TAGS', true);
    global $allowedposttags, $allowedtags;
    $allowedposttags = array(
        'strong' => array(),
        'em' => array(),
        'ol' => array(),
        'li' => array(),
        'u' => array(),
        'ul' => array(),
        'blockquote' => array(),
        'code' => array(),
        'pre' => array(),
        'a' => array(
          'href' => array (),
          'title' => array ()),
        'img' => array(
          'src' => array ()),
    );
  
    $allowedtags = array(
        'strong' => array(),
        'em' => array(),
        'ol' => array(),
        'li' => array(),
        'u' => array(),
        'ul' => array(),
        'blockquote' => array(),
        'code' => array(),
        'pre' => array(),
        'a' => array(
          'href' => array (),
          'title' => array ()),
        'img' => array(
          'src' => array ()),
    );
  }

  Notes: Wordpress is using “kses – PHP HTML/XHTML filter” open source project to provide html tag filtering.