is_buffer Finds whether a variable is a native unicode or binary string &reftitle.description; boolis_buffer mixedvar Finds whether the given variable is a native unicode or binary string. &reftitle.parameters; var The variable being evaluated. &reftitle.returnvalues; Returns &true; if var is a native unicode or binary string, &false; otherwise. &reftitle.seealso; is_binary is_string is_unicode