Shortcode wordpress permettant d'afficher du contenu en fonction de la date du jour Ex : [evollia_visible start_date="2014-01-01" end_date="2014-01-31"] contenu [/evollia_visible]

functions.php

function evollia_visible_shortcode( $atts, $content = null ) {
	extract( shortcode_atts( array(
		'start_date' => '',
		'end_date' => '',
	), $atts ) );

	
	$today = new DateTime( date('Y-m-d') );
	$display = true;
	
	if ($start_date){
		$start_date = new DateTime($start_date);
		if ( $today < $start_date ) $display = false;
	}
			
	if ($end_date){
		$end_date = new DateTime($end_date);
		if ( $today > $end_date ) $display = false;
	}

	if ( !$display) $content = '';
		
	return do_shortcode($content);
}
add_shortcode( 'evollia_visible', 'evollia_visible_shortcode' );