<div class="form-group">
<label><?=lang('Students')?></label><br>
<select name="students[]" id="students" class="form-control input-large select2" multiple>
<?foreach($students as $student):?>
<option value="<?=$student->student_id?>"><?=$student->student_surname.' '.$student->student_name.' '.$student->student_middlename?></option>
<?endforeach?>
</select>
</div>
问题是在多个选择输入中查看所有数据，以便用户可以编辑。现在多重选择是空的，用户应该再次选择
这就是您所要求的-在编辑时显示多个选中的项目?
视图——
<div class="form-group public-cus-form-field-wrap">
<label for="treatment" class="col-sm-2 control-label">Treatment</label>
<div class="col-sm-9">
<select name="treatment[]" id="treatment" class="col-sm-12 country" style="height: 40px;" multiple="multiple">
<option value="">--Select--</option>
<?php
if ($record->service_treatment)
{
$treat = explode(',',$record->service_treatment);
//$record->service_treatment holds my selected values saved in db
foreach($treatment as $treatments) // $treatment array holds the values to be displayed in select box
{ ?>
<option value="<?php echo $treatments->treatment_name ?>" <?php if(in_array($treatments->treatment_name, $treat)){echo 'selected="selected"';}?>
><?php echo $treatments->treatment_name; ?></option>
<?php } }
else { foreach($treatment as $treatments) { ?>
<option value="<?php echo $treatments->treatment_name ?>"><?php echo $treatments->treatment_name; ?></option>
<?php } } ?>
</select>
</div>
</div>
模型——
public function name()
{
if (is_array($this->input->post('treatment')))
{
$treatment = implode(",", $this->input->post('treatment'));
}
elseif($this->input->post('treatment')){
$treatment = $this->input->post('treatment');
}
// $treatment holds the multiple selected values
}