Question

我正在开发codeigniter的考勤系统。有一个复选框列表。我成功地将已检查的数据插入到数据库中，但我想知道如何将未经检查的数据插入数据库，以及如何检测是否检查了盒子是否与java一样。

这是我的观点

<table align="center">
<tr>
    <th><input type="checkbox" title="Select all" onclick="changeAll(this.checked);"/></th>
    <th>student id</th>
    <th>student name</th>
    <th>class</th>
    <th>section</th>
</tr>
<form action="<?php echo base_url();?>index.php/student/attendance/submit" onsubmit="return checkForm();" method="post">
<?php foreach($result as $r):?>
<tr>
    <td><input type="checkbox" name="id[]" id="id[]" value="<?php echo $r->sid ?>"/></td>
    <td><?php echo $id=$r->sid ?></td>
    <td>
        <?php 
            $this->db->where('id',$id);
            $query=$this->db->get('student_basic_info');
            foreach($query->result() as $re){
                echo $re->f_name." ".$re->l_name;
            }
        ?>
    </td>
    <td><?php echo $r->class_name?></td>
    <td><?php echo $r->section?></td>
</tr>
<?php endforeach;?>
<tr class="no">
    <td class="no"><input type="submit" value="Submit" name="action"></td>
</tr>
    </form>

Answer 1

你可以做的是添加两个复选框作为存在和不存在然后循环遍历每个数据并插入数据

另外如果你想要单一的复选框您可以将id_（数字）作为复选框名称，并以相同的方式发送用户ID的隐藏值。最后将用户的总数发送为隐藏的太多。

<?php 
$i = 1;
foreach($result as $r):?>
<tr>
    <td><input type="checkbox" name="id_$i" id="id_$i" value="<?php echo $r->sid ?>"/></td>
    <td><?php echo $id=$r->sid ?></td>
    <td>
        <?php 
            $this->db->where('id',$id);
            $query=$this->db->get('student_basic_info');
            foreach($query->result() as $re){
                echo $re->f_name." ".$re->l_name;
            }
        ?>
    </td>
    <td><?php echo $r->class_name?></td>
    <td><?php echo $r->section?></td>
</tr>
//Here is the user id 
<input type="hidden" name="user_$i" value="your user id">
<?php

$i++;
endforeach;?>

//now send the total users again in hidden field
<input type="hidden" name="totalusers" value="<?php echo $i; ?>">


//NOw in our php script

for($i=1;$i<=$_POST['totalusers'];$i++){
     if(isset($_POST["id_$i"]))
          //this means the user is present add it to database as your requirement
     else{
         //this means the checkbox was not checked so 
         //for this we get the unchecked users id from $_POST["user_$i"]
         //now add to the database for this user as absent
         }
}

如何获取codeigniter中复选框的未选中值

1 个答案: