shortcode To Show Or Hide Content

custom-functions.php

// Show or hide content based on whether user is logged in or not
// shortcode for logged in users is [loggedin]content[/loggedin]
// shortcode for logged out users us [loggedout]content[/loggedout]
function loggedincheck( $atts, $content = null ) {
    $user = wp_get_current_user();
    $allowed_roles = array('administrator', 'editor', 'author');

    if ( is_user_logged_in() && !is_null( $content ) && !is_feed() && array_intersect($allowed_roles, $user->roles ) ) {
          return $content;
          return '';
     }
}
add_shortcode( 'loggedin', 'loggedincheck' );

function loggedoutcheck( $atts, $content = null ) {
    if ( !is_user_logged_in() && !is_null( $content ) && !is_feed() ) {
          return $content;
    return '';
    }
}
add_shortcode( 'loggedout', 'loggedoutcheck' );

/*new version*/
function conditional_tags_shortcode( $atts, $content ) {

	foreach ( $atts as $key => $value ) {
		/* normalize empty attributes */
		if ( is_int( $key ) ) {
			$key = $value;
			$value = true;
		}

		$reverse_logic = false;
		if ( substr( $key, 0, 4 ) == 'not_' ) {
			$reverse_logic = true;
			$key = substr( $key, 4 );
		}

		// the conditional tag parameters
		$values = ( true === $value ) ? null : array_filter( explode( ',', $value ) );

		// check the condition
		if ( preg_match( '/has_term_(.*)/', $key, $matches ) ) {
			$result = has_term( $values, $matches[1] );
		} elseif ( function_exists( $key ) ) {
			$result = call_user_func( $key, $values );
		}

		if ( ! isset( $result ) )
			return '';
		if ( $result !== $reverse_logic ) {
			return do_shortcode( $content );
		}
	}

	return '';
}
add_shortcode( 'if', 'conditional_tags_shortcode' );