PHP Get Checkbox Value Content Example_PHP Tutorial

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Release: 2016-07-13 10:44:09
Original
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Checkbox is stored in the form of an array in HTML. If we want to get the checkbox value selected by the user, we can use traversal or directly convert the array into characters using implode to store it.

PHP requires form elements with the same name to be named in array form and assigned value. Otherwise he cannot decompose.

Example 1: Using foreach to traverse checkbox

 代码如下 复制代码



After submission, use $_POST['chk'] to access. The elements in the array are the values ​​of the selected check boxes

PHP code:

The code is as follows Copy code
 代码如下 复制代码

  foreach( $_POST["chk"] as $i=>$a )
  { echo $i."==>".$a."
"; }
//或者使用$_POST["chk"][0]单独使用
?>

foreach( $_POST["chk"] as $i=>$a )
{ echo $i."==>".$a."
"; }
//Or use $_POST["chk"][0] alone
?>

结果:

0=>1
1=>2
2=>3

例2利用explode

 代码如下 复制代码
 代码如下 复制代码


  1. 中文普通话
  2. 日语
  3. 朝鲜语
  4. 西班牙语
  5. 俄语
  6. 德语
  7. 法语
  8. 英语
  9. 少数民族语言
  10. 中文闽南语
  11. 中文粤语
  12. 其它国家语言
'中文普通话', '11'=>'日语', '10'=>'朝鲜语', '9'=>'西班牙语', '8'=>'俄语', '7'=>'德语', '6'=>'法语', '5'=>'英语', '4'=>'少数民族语言', '3'=>'中文闽南语', '2'=>'中文粤语', '12'=>'其它国家语言', ); $lang = $_POST['lang']; if (is_array($lang)){ $cbsports = '
    '; foreach ($CACHE['lang'] as $key => $val) { $cbsports .= '
  1. '.$val.'
  2. '; } $cbsports .= '
'; echo $cbsports; } else { echo '请勾选后提交'; } ?>

  1. 中文普通话
  2. 日语
  3. 朝鲜语
  4. 西班牙语
  5. 俄语
  6. 德语
  7. 法语
  8. 英语
  9. 少数民族语言
  10. 中文闽南语
  11. 中文粤语
  12. 其它国家语言
'中文普通话', '11'=>'日语', '10'=>'朝鲜语', '9'=>'西班牙语', '8'=>'俄语', '7'=>'德语', '6'=>'法语', '5'=>'英语', '4'=>'少数民族语言', '3'=>'中文闽南语', '2'=>'中文粤语', '12'=>'其它国家语言', ); $lang = $_POST['lang']; if (is_array($lang)){ $cbsports = '
    '; foreach ($CACHE['lang'] as $key => $val) { $cbsports .= '
  1. '.$val.'
  2. '; } $cbsports .= '
'; echo $cbsports; } else { echo '请勾选后提交'; } ?>

 代码如下 复制代码

if(!emptyempty($lang)) { $expr = join(",", $lang); }

如果需要保存到数据库,按照下面的方式处理后,把$expr的值存储即可。
 代码如下 复制代码
if(!emptyempty($lang)) { $expr = join(",", $lang); }

The original array can be regenerated after processing like this when displaying.

The code is as follows Copy code
 代码如下 复制代码

$lang = explode(',',$row(lang));

$lang = explode(',',$row(lang));

Note: Arrays can be stored directly using serialize() and unserialize(), but the fields must be of text type, which is not ideal.

Example 3: You need to delete multiple records at the same time, or modify multiple records at the same time

Key Points:

1. Add [] to the name in the front-end form, such as:
2. The backend accepts: $id = $_POST [id] [$i]; $i is the loop variable in for. When $i is the same, $_POST [id] [$i] and $_POST [name ] [$i] is a one-to-one correspondence;

1. Front-end form:

The code is as follows Copy code


For the selected operation:

             
                                                                                                                                                                                                                                                                                                                                               
& Lt; th scope = "color" & gt; theme & lt;/th & gt;


                                                                                                                                                                                                        



                                                                                                                                                                                                                                                                                                                                                                        
                                                                                           

                                                                                                                                                                                                                                                     
                                                                                                                                                                                                                               
                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                                                         
                                                                                                                                                                                                                                                 
                                                                                                                                                                                                                                          
& Lt; td & gt; & lt; select name = "Check []" & gt; & lt; switch name = "vo.check" & gt;
                                                                                                                                                                                                                               
                           
                           
                           
                           
                           
                   

               
               
           
onclick="checkAll()" /> Select all Campus RoomContact number Repair time Review Repair status{$vo.id}{$vo.topic}{$vo.xiaoqu}{$vo.room}{$vo.pname}{$vo.phone}{$vo.create_time|date='Y-m-d H:i:s',###}

       


二,服务端处理代码
 

 代码如下
 代码如下 复制代码

 

/**
* 批量修改状态
*/
public function updateList() {
$result = false;
for($i = 0; $i < count ( $_POST [id] ); $i ++) {

$id = $_POST [id] [$i];
$check = $_POST [check] [$i];
$status = $_POST [status] [$i];

// 保存登录信息
$Repair = M ( 'Repair' );
$data ['id'] = $id;
$data ['check'] = $check;
$data ['status'] = $status;
$result = $Repair->save ( $data );
        }
       
        if (false !== $result) {
            $this->success ( '修改成功!' );
        } else {
            $this->error ( '修改失败!' );
        }
    }

复制代码
 

/** ​​*/     public function updateList() {         $result = false;         for($i = 0; $i < count ( $_POST [id] ); $i ++) {                         $id = $_POST [id] [$i];             $check = $_POST [check] [$i];             $status = $_POST [status] [$i];                         // 保存登录信息             $Repair = M ( 'Repair' );

            $data ['id'] = $id;

            $data ['check'] = $check;
            $data ['status'] = $status;
            $result = $Repair->save ( $data );         }                 if (false !== $result) {             $this->success ( '修改成功!' );         } else {             $this->error ( '修改失败!' );         }     } http://www.bkjia.com/PHPjc/633133.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/633133.htmlTechArticlecheckbox在html中是以数组形式存储的,如果我们要获取用户选择了我个checkbox值我们可以利用遍历或直接把数组利用implode转换在字符进行存储...

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