Añade un atributo value a los tres checkbox. A los atributos value dales el mismo valor del atributo id de cada checkbox. <input id="loving" type="checkbox" name="personality"> <label for="loving">Loving</label> <input id="lazy" type="checkbox" name="personality" value="lazy"> <label for="lazy">Lazy</label> <input id="energetic" type="checkbox" name="personality" value="energetic"> <label for="energetic"> Energetic</label>

<input id="loving" type="checkbox" name="personality" value="loving"> <label for="loving">Loving</label>

           <input id="lazy" type="checkbox" name="personality" value="lazy"> <label for="lazy">Lazy</label>

            <input id="energetic" type="checkbox" name="personality" value="energetic"> <label for="energetic"> Energetic</label>