Php 选择用户以前在Laravel 4环境中选择的下拉元素

我正在寻找一种方法来选择一个下拉元素，该元素以前是由用户在Laravel 4环境中选择的，每一行上都没有if语句

刀片模板中的下拉式HTML示例：

<select id="frequency" name="schedule_data_dropdown">
    <option value="">Choose from dropdown
    <option value="custom">Custom
    <optgroup label="Frequency less then an hour">
    <option value="Every min">Every min
    <option value="Every 5 min">Every 5 min
    <option value="Every 15 min">Every 15 min
    <option value="Every 30 min">Every 30 min
    <option value="Every 45 min">Every 45 min
    <optgroup label="Frequency less then a dag">
    <option value="Every hour">Every hour
    <option value="Every 2 hour">Every 2 hour
    <option value="Every 6 hour">Every 6 hour
    <option value="Every 12 hour">Every 12 hour
    <optgroup label="Frequency less then a week">
    <option value="Every day">Every day
    <option value="Every weekday">Every weekday
</select>

从下拉列表中选择
习俗
每分钟
每5分钟
每15分钟
每30分钟
每45分钟
每小时
每2小时
每6小时
每12小时
每一天
工作日

如果这在刀片模板中，则使用Laravel的表单类。首先设置一个数组以保存选项：

$options = array(
    'Choose from dropdown',
    'custom' => 'Custom',
    'Frequency less than an hour' => array(
        'Every min' => 'Every min',
        'Every 5 min' => 'Every 5 min'
        ...
    ),
    'Frequency less than a day' => array(
        'Every hour' => 'Every hour',
        'Every 2 hour' => 'Every 2 hour',
        ...
    ),
    'Frequency less than a week' => array(
        'Every day' => 'Every day',
        'Every weekday' => 'Every weekday'
    )
);

现在创建表单元素：

{{ Form::select('schedule_data_dropdown', $options, $user_pre_selected, array('id' => 'frequency')) }}