select all checkbox

Question

<table class="table" border="1">
<thead>
<tr>
<th>select all
<div class="checkbox">
<input type="checkbox" id="selectAll">
<label for="selectAll"></label>
</div>
</th>
<th>Email</th>
<th>Join date <i class="arrow bottom"></i></th>
</tr>
</thead>
<tbody>
<tr class="active">
<td>
<div class="checkbox">
<input type="checkbox" id="tr-checkbox1">
<label for="tr-checkbox1"></label>
</div>
</td>
<td>[email protected]</td>
<td>21 Oct, 2016 at 11:29 pm</td>
</tr>
<tr>
<td>
<div class="checkbox">
<input type="checkbox" id="tr-checkbox2">
<label for="tr-checkbox2"></label>
</div>
</td>
<td>[email protected]</td>
<td>21 Oct, 2016 at 11:29 pm</td>
</tr>
</tbody>
</table>
demo of  table is above in our table select all below all textbox are selected in table in php