UPDATE從數組值查詢

Question

我希望更新數據庫表中的值由codeigniter上的數組數據，但我有輸出錯誤。如何解決它？

PHP：

$mainpage = $this - > input - > post('mainpage'); 
$data2 = array(); 
foreach($mainpage as $idx = > $name) { 
    $data2[] = array(
     'mainpage' = > $name[0], 
     'subpage' = > json_encode($this - > input - > post('subpage')[$idx]), 
     'service' = > json_encode($this - > input - > post('tdadeps')[$idx]), 
     'id_relation' = > $id_relation,); 
    $this - > db - > where('id_relation', $id_relation); 
    $data22 = $this - > db - > update('access_level', $data2); 
} 

ERROR輸出：

A PHP Error was encountered 
Severity: Notice 
Message: Array to string conversion 
Filename: mysql/mysql_driver.php 
Line Number: 612 

A Database Error Occurred 
Error Number: 1054 
Unknown column '0' in 'field list' 
UPDATE `access_level` SET `0` = Array WHERE `id_relation` = '2' 
Filename: W:\system\database\DB_driver.php 
Line Number: 330 

Answer 1

我希望看到更多的代碼，但試試這個代碼：

$mainpage = $this - > input - > post('mainpage'); 
$data2 = array(); 
foreach($mainpage as $idx = > $name) { 
    $data2 = array(
     'mainpage' = > $name[0], 
     'subpage' = > json_encode($this - > input - > post('subpage')[$idx]), 
     'service' = > json_encode($this - > input - > post('tdadeps')[$idx]), 
     'id_relation' = > $id_relation); 
    $this - > db - > where('id_relation', $id_relation); 
    $data22 = $this - > db - > update('access_level', $data2); 
} 

讓我知道如果工作