créer un placeholder

//créer un placeholder'

//add_filter('em_event_output_placeholder','my_em_styles_placeholders',1,3);
add_filter('em_event_output_placeholder','cat_placeholders',1,3);

//function my_em_styles_placeholders($replace, $EM_Event, $result){
function cat_placeholders($replace, $EM_Event, $result){

    //if( $result == '#_STYLES' ){
    if( $result == '#_CAT' ){

        $replace = 'none';
        //if( count($EM_Event->styles) > 0 ){
        if( count($EM_Event->name) > 0 ){


            //$my_em_styles = (is_array(get_option('my_em_styles'))) ? get_option('my_em_styles'):array();
 	    $cat_sup = (is_array(get_option('cat_sup'))) ? get_option('cat_sup'):array();

            //$styles = array();
	    $cats = array();

            //foreach( $EM_Event->styles as $id ){
	    foreach( $EM_Event->name as $id ){

                //if( !empty($my_em_styles[$id]) ){
                if( !empty($cat_sup[$id]) ){

                    //$styles[] = $my_em_styles[$id];
                    $cats[] = $cat_sup[$id];
                }
            }
            //$replace = implode(', ', $styles);
            $replace = implode(', ', $cats);
        }
    }
    return $replace;
}

//ref: https://wp-events-plugin.com/documentation/