'no foo', 'baz' => 'default baz', ), $atts)); return "foo = {$foo}"; } add_shortcode('bartag', 'bartag_func'); Example with enclosed content: // [baztag]content[/baztag] function baztag_func($atts, $content='') { return "content = $content"; } add_shortcode('baztag', 'baztag_func'); */ $shortcode_tags = array(); function add_shortcode($tag, $func) { global $shortcode_tags; if ( is_callable($func) ) $shortcode_tags[$tag] = $func; } function remove_shortcode($tag) { global $shortcode_tags; unset($shortcode_tags[$tag]); } function remove_all_shortcodes() { global $shortcode_tags; $shortcode_tags = array(); } function do_shortcode($content) { global $shortcode_tags; if (empty($shortcode_tags) || !is_array($shortcode_tags)) return $content; $tagnames = array_keys($shortcode_tags); $tagregexp = join( '|', array_map('preg_quote', $tagnames) ); $pattern = '/\[('.$tagregexp.')\b(.*?)(?:(\/))?\](?:(.+?)\[\/\1\])?/s'; return preg_replace_callback($pattern, 'do_shortcode_tag', $content); } function do_shortcode_tag($m) { global $shortcode_tags; $tag = $m[1]; $attr = shortcode_parse_atts($m[2]); if ( isset($m[4]) ) { // enclosing tag - extra parameter return call_user_func($shortcode_tags[$tag], $attr, $m[4]); } else { // self-closing tag return call_user_func($shortcode_tags[$tag], $attr); } } function shortcode_parse_atts($text) { $atts = array(); $pattern = '/(\w+)\s*=\s*"([^"]*)"(?:\s|$)|(\w+)\s*=\s*\'([^\']*)\'(?:\s|$)|(\w+)\s*=\s*([^\s\'"]+)(?:\s|$)|"([^"]*)"(?:\s|$)|(\S+)(?:\s|$)/'; if ( preg_match_all($pattern, $text, $match, PREG_SET_ORDER) ) { foreach ($match as $m) { if (!empty($m[1])) $atts[strtolower($m[1])] = stripcslashes($m[2]); elseif (!empty($m[3])) $atts[strtolower($m[3])] = stripcslashes($m[4]); elseif (!empty($m[5])) $atts[strtolower($m[5])] = stripcslashes($m[6]); elseif (isset($m[7]) and strlen($m[7])) $atts[] = stripcslashes($m[7]); elseif (isset($m[8])) $atts[] = stripcslashes($m[8]); } } return $atts; } function shortcode_atts($pairs, $atts) { $out = array(); foreach($pairs as $name => $default) { if ( array_key_exists($name, $atts) ) $out[$name] = $atts[$name]; else $out[$name] = $default; } return $out; } add_shortcode('gallery', 'gallery_shortcode'); function gallery_shortcode($attr) { global $post; // Allow plugins/themes to override the default gallery template. $output = apply_filters('post_gallery', '', $attr); if ( $output != '' ) return $output; $attachments = get_children("post_parent=$post->ID&post_type=attachment&orderby=\"menu_order ASC, ID ASC\""); /* foreach ( $attachments as $id => $attachment ) { $meta = get_post_custom($id); if ( $meta ) foreach ( $meta as $k => $v ) $attachments[$id]->$k = $v; if ( isset($attachments[$id]->_wp_attachment_metadata[0]) ) $attachments[$id]->meta = unserialize($attachments[$id]->_wp_attachment_metadata[0]); } */ $output = "

"; if ( !empty($attachments) ) foreach ( $attachments as $id => $attachment ) { $src = wp_get_attachment_thumb_url($id); $href = get_attachment_link($id); $output .= "

"; if ( ++$i % 3 == 0 ) $output .= '
'; } $output .= "

"; return $output; } add_filter('the_content', 'do_shortcode'); ?>