I'm really not sure were to start with this, I have opening times and closing times and optional days of the week. what should I be reading to approach inserting into a database?
<tbody class="mobile-table">
<tr class="mobile-design">
<td class="weekdays">
<label><input type=checkbox checked name=Sun><b></b></label>
<label><input type=checkbox checked name=Mon><b></b></label>
<label><input type=checkbox checked name=Tue><b></b></label>
<label><input type=checkbox checked name=Wed><b></b></label>
<label><input type=checkbox checked name=Thu><b></b></label>
<label><input type=checkbox checked name=Fri><b></b></label>
<label><input type=checkbox checked name=Sat><b></b></label>
<td class="start-mobile">
<label>
<input class="start time" name="start" min="00:00" max="24:00" required pattern="[0-9]{2}:[0-9]{2}" title="Please enter opening time">
</label>
</td>
<td class="end-mobile">
<label>
<input class="end time" name="end" min="00:00" max="24:00" required pattern="[0-9]{2}:[0-9]{2}" title="Please enter closing time">
</label>
</td>
<td class=mr>
<button type="button" name="More">Add times</button>
<button type="button" name="Remove">Remove times</button>
</td>
</tr>
</tbody>