Question

我遇到这样的情况，我想更新一些输入为复选框的数据，我在下面尝试了此代码。数据已经保存在数据库中，但是数据保存在另一行中，

例如：我为BirdA检查了红色，黄色和灰色，同时为BirdD检查了黑暗和蓝色。在数据库中，BirdA的颜色正确保存，但第二只鸟的深蓝色保存在BirdB中（应保存在BirdD ）

我想解决上面的问题，因此数据应保存在数据库的正确位置。请在下面检查我的代码：

我的Db表：

=============================================
| birds | red | blue | grey | yellow | dark | 
=============================================
| BirdA |  0  |   0  |   0  |   0    |   0  |
| BirdB |  0  |   0  |   0  |   0    |   0  |
| BirdC |  0  |   0  |   0  |   0    |   0  |
| BirdD |  0  |   0  |   0  |   0    |   0  |
=============================================

查看：

  <tr>
    <td><input type="hidden" name="birds[]" value='<?php echo $dp['birds']; ?>' /><?php echo $dp['birds']; ?></td>
    <td><p align='center'><input type="text" name="qtt[]" value='<?php echo $dp['qtt']; ?>' tabindex="2" style="width:30px;" /></td>
    <td><p align='center'><input type="checkbox" name="red[]" value='1' <?php if($dp['red']==1) { echo " checked=\"checked\""; } ?> /></td>
    <td><p align='center'><input type="checkbox" name="blue[]" value='1' <?php if($dp['blue']==1) { echo " checked=\"checked\""; } ?> /></td>
    <td><p align='center'><input type="checkbox" name="grey[]" value='1' <?php if($dp['grey']==1) { echo " checked=\"checked\""; } ?> /></td>
    <td><p align='center'><input type="checkbox" name="yellow[]" value='1' <?php if($dp['yellow']==1) { echo " checked=\"checked\""; } ?> /></td>
    <td><p align='center'><input type="checkbox" name="dark[]" value='1' <?php if($dp['dark']==1) { echo " checked=\"checked\""; } ?> /></td>
  </tr>

和控制器：

    $birds= $this->input->post("birds");
        if (empty($this->input->post("birds"))){
            $birds= 0;
        }
    $qtt= $this->input->post("qtt");
        if (empty($this->input->post("qtt"))){
            $qtt= 0;
        }
    $red= $this->input->post("red");
        if (empty($this->input->post("red"))){
            $red= 0;
        }
    $blue= $this->input->post("blue");
        if (empty($this->input->post("blue"))){
            $blue= 0;
        }
    $grey= $this->input->post("grey");
        if (empty($this->input->post("grey"))){
            $grey= 0;
        }
    $yellow= $this->input->post("yellow");
        if (empty($this->input->post("yellow"))){
            $yellow= 0;
        }
    $dark= $this->input->post("dark");
        if (empty($this->input->post("dark"))){
            $dark= 0;
        }

    for($x = 0; $x < sizeof($birds); $x++){
        $reslt[$x] = array(
            "birds"    => $birds[$x],
            "qtt"  => $qtt[$x],
            "red"  => $red[$x],
            "blue"  => $blue[$x],
            "grey"  => $grey[$x],
            "yellow"  => $yellow[$x],
            "dark"  => $dark[$x]
            );
        }
        $this->db->update_batch('db_birds', $reslt, 'birds');

执行该代码后，php出现如下错误：

A PHP Error was encountered
Severity: Notice

Message: Undefined variable: x

Filename: controllers/....

Line Number: 613

Backtrace:

File: /home/.....
Line: 613
Function: _error_handler

File: /home/..../index.php
Line: 315
Function: require_once

A PHP Error was encountered
Severity: Notice

Message: Undefined offset: 3

Filename: controllers/....

Line Number: 621

Backtrace:

File: /home/....
Line: 621
Function: _error_handler

File: /home/..../index.php
Line: 315
Function: require_once

A PHP Error was encountered
Severity: Notice

Message: Undefined offset: 3

Filename: controllers/...

Line Number: 622

Backtrace:

File: /home/...
Line: 622
Function: _error_handler

File: /home/.../index.php
Line: 315
Function: require_once

A PHP Error was encountered
Severity: Notice

Message: Undefined offset: 4

Filename: controllers/...

Line Number: 620

Backtrace:

File: /home/...
Line: 620
Function: _error_handler

File: /home/.../index.php
Line: 315
Function: require_once

A PHP Error was encountered
Severity: Notice

Message: Undefined offset: 4

Filename: controllers/...

Line Number: 621

Backtrace:

File: /home/...
Line: 621
Function: _error_handler

File: /home/.../index.php
Line: 315
Function: require_once

A PHP Error was encountered
Severity: Notice

Message: Undefined offset: 4

Filename: controllers/...

Line Number: 622

Backtrace:

File: /home/...
Line: 622
Function: _error_handler

File: /home/.../index.php
Line: 315
Function: require_once

A PHP Error was encountered
Severity: Notice

Message: Undefined offset: 5

Filename: controllers/...

Line Number: 618

Backtrace:

File: /home/...
Line: 618
Function: _error_handler

File: /home/.../index.php
Line: 315
Function: require_once

......

谢谢你，问候

Answer 1

控制器代码：-

for($x = 0; $x < sizeof($birds); $x++){
        $reslt[$x] = array(
            "birds"    => $birds[$x],
            "qtt"  => $qtt[$x],
            "red"  => $red[$x],
            "blue"  => $blue[$x],
            "grey"  => $grey[$x],
            "yellow"  => $yellow[$x],
            "dark"  => $dark[$x]
            );
        }
$this->db->update_batch('db_birds', $reslt, 'birds');

更改已在您的视图代码中：-

 <?php


//sql Query.
//execute Query.


$ii=0;
foreach($dps as $dp){
      $iii = $ii++; 
 <tr>
    <td><input type="hidden" name="birds[<?php echo $iii;?>]" value='<?php echo $dp['birds']; ?>' /><?php echo $dp['birds']; ?></td>
    <td><p align='center'><input type="text" name="qtt[]" value='<?php echo $dp['qtt']; ?>' tabindex="2" style="width:30px;" /></td>
    <td><p align='center'><input type="checkbox" name="red[<?php echo $iii;?>]" value='1' <?php if($dp['red']==1) { echo " checked=\"checked\""; } ?> /></td>
    <td><p align='center'><input type="checkbox" name="blue[<?php echo $iii;?>]" value='1' <?php if($dp['blue']==1) { echo " checked=\"checked\""; } ?> /></td>
    <td><p align='center'><input type="checkbox" name="grey[<?php echo $iii;?>]" value='1' <?php if($dp['grey']==1) { echo " checked=\"checked\""; } ?> /></td>
    <td><p align='center'><input type="checkbox" name="yellow[<?php echo $iii;?>]" value='1' <?php if($dp['yellow']==1) { echo " checked=\"checked\""; } ?> /></td>
    <td><p align='center'><input type="checkbox" name="dark[<?php echo $iii;?>]" value='1' <?php if($dp['dark']==1) { echo " checked=\"checked\""; } ?> /></td>
  </tr>
  }
  
  
?>

Codeigniter批处理复选框的更新

1 个答案: