'; print_r( $var ); echo ''; } /** * Var_dump and die. * * @param mixed $var */ public static function dd( $var = null ) { self::print_r( $var ); die(); } /** * Check if server is running Nginx. * * @return bool */ public static function is_nginx() { return isset( $_SERVER['SERVER_SOFTWARE'] ) && false !== strpos( wp_unslash( $_SERVER['SERVER_SOFTWARE'] ), 'nginx' ); } /** * Check if server is running LiteSpeed. * * @return bool */ public static function is_litespeed() { return isset( $_SERVER['SERVER_SOFTWARE'] ) && false !== strpos( wp_unslash( $_SERVER['SERVER_SOFTWARE'] ), 'LiteSpeed' ); } }