这里我列出了所有汽车。客户想要比较汽车,所以他们会从这个下拉菜单中选择。一个人可以选择多辆车。他第一次选择'奥迪'和萨博'如果他来的话,我会将它存储到数据库中我需要填写萨博和奥迪,我可以选择如何使用php进行此操作
<select name="cars" multiple>
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="opel">Opel</option>
<option value="audi">Audi</option>
</select>
这是我的代码
<select id="cars" class="multiselect" multiple="multiple" name="cars[]">
<?PHP
if($carslist->num_rows() >0)
{
foreach($carslist->result_array() as $entry):
?> <option value="<?php echo($entry['ID']); ?>" ><?php echo($entry['car_name']); ?></option>
<?php
endforeach;
}
?>
</select>
以下代码我尝试了$资源包含精选汽车
<select id="cars" class="multiselect" multiple="multiple" name="cars[]">
<?PHP
if($carslist->num_rows() >0)
{
foreach($carslist->result_array() as $entry):
if($resources->num_rows() >0)
{
foreach($resources->result_array() as $car):
if($entry['ID'] == $employee['car_id'])
{
$select = 'selected="selected"';
}
else
{
$select = '';
}
endforeach;
}
?> <option value="<?php echo($entry['ID']); ?>" <?php echo $select;?> ><?php echo($entry['car_name']); ?></option>
<?php
endforeach;
}
?>
</select>
但显示错误
答案 0 :(得分:1)
在这里,尝试这样的事情,看看它是否有效:
这是控制器:
<?php
function something(){
$data = array();
$data['cars'] = $this->some_model->some_function_to_return_cars_array();
$data['selected'] = $some_array_of_selected_cars();
$this->load->view('some_view', $data);
}
?>
这是视图:
<select id="cars" class="multiselect" multiple="multiple" name="cars[]">
<option value="">Select:</option>
<?php
foreach( $cars as $key => $val ){
?>
<option value="<?php echo $val['some_id'] ?>"
<?php
if( in_array( $val['some_id'], $selected ) ) echo ' selected';
?>
><?php echo $val['some_name'] ?></option>
<?php
}
?>
</select>