Shortcodes are the codes inserted in post or page content which will be replaced with other content on post or page view. Do not use hyphens (-) in shortcode names, use an underscore (_) instead of it. Bad: [short-code]; good: [short_code].
Example:
[pagelist]
Example with parameters:
[pagelist depth="3" child_of="4"]
Example with content:
[header]title[/header]
PHP code for "[pagelist]" shortcode:
<?php function pagelist_shortcode( $atts ) { extract( shortcode_atts( array( 'depth' => '0', 'child_of' => '0' ), $atts ) ); $page_list_args = array( 'depth' => $depth, 'child_of' => $child_of ); $wp_list_pages = wp_list_pages( $page_list_args ); if ($wp_list_pages) { return '<ul>'.$wp_list_pages.'</ul>'; }else{ return ''; } } add_shortcode( 'pagelist', 'pagelist_shortcode' ); ?>
PHP code for "[header]" shortcode:
<?php function header_shortcode( $atts, $content = null ) { return '<h2>'.$content.'</h2>'; } add_shortcode( 'header', 'header_shortcode' ); ?>