php后台如何获取html下拉菜单的值,请大侠们帮忙
<div id="create" style="display:block;">
<form method="POST" action="__APP__/Index/add">
<div class="modal-body" >
请选择: <select id="selectRole1" >
<option value="0">请选择</option>
{foreach $pe.roles as $value}
<option value="{$value.id}">{$value.role_name}</option>
{/foreach}
</select>
</div>
<div >
<input type="submit" value="提交"/>
</div>
</from>
</div>