if none * * [display-get-param name="paramname" default="Paramname was blank"] * - shows the value of GET named paramname, or "Paramname was blank" if none */ public static function display_get_param($atts) { if (!isset($atts['name'])) { return 'display-get-param requires a name attribute'; } $name = $atts['name']; $default = isset($atts['default']) ? $atts['default'] : ''; return htmlentities(isset($_GET[$name]) ? $_GET[$name] : $default); } /* [display-if-get name="myparam"] * This only shows if myparam is passed as a GET param * [/display-if-get] * * [display-if-get name="myparam" value="true"] * This only shows if myparam is passed as a GET param and equals "true" * [/display-if-get] */ public static function display_if_get($atts, $content=null) { if (!isset($atts['name'])) { return 'display-if-get requires a name attribute'; } if (is_null($content)) { return 'display-if-get must have opening and closing tags'; } $name = $atts['name']; if (isset($_GET[$name])) { if (!isset($atts['value']) || $atts['value'] == $_GET[$name]) { return do_shortcode($content); } } return ''; } /* * [display-if-not-get name="myparam"] * This content shows in all cases where the equivalent display-if-get shortcode content would NOT show. * [/display-if-not-get] */ public static function display_if_not_get($atts, $content=null) { if (!isset($atts['name'])) { return 'display-if-not-get requires a name attribute'; } if (is_null($content)) { return 'display-if-not-get must have opening and closing tags'; } $name = $atts['name']; if (isset($_GET[$name])) { if (!isset($atts['value']) || $atts['value'] == $_GET[$name]) { return ''; } } return do_shortcode($content); } } add_shortcode( 'display-get-param', Array('wp_get_params', 'display_get_param') ); add_shortcode( 'display-if-get', Array('wp_get_params', 'display_if_get') ); add_shortcode( 'display-if-not-get', Array('wp_get_params', 'display_if_not_get') );