如何获得sqlite 3中给定表的所有列名的列表？ （表可能是空的）

Question

现在我使用：

PRAGMA table_info(table_name) 

结构，但它不允许我以缩小搜索结果的列名，因为它原来很多不需要的数据。这是数组的数组

Array 
(
    [0] => Array 
     (
      [cid] => 0 
      [name] => id 
      [type] => INTEGER 
      [notnull] => 0 
      [dflt_value] => 
      [pk] => 1 
     ) 

    [1] => Array 
     (
      [cid] => 1 
      [name] => name 
      [type] => TEXT 
      [notnull] => 0 
      [dflt_value] => 
      [pk] => 0 
     ) 

    [2] => Array 
     (
      [cid] => 2 
      [name] => timestamp 
      [type] => INTEGER 
      [notnull] => 0 
      [dflt_value] => 
      [pk] => 0 
     ) 

    [3] => Array 
     (
      [cid] => 3 
      [name] => note 
      [type] => TEXT 
      [notnull] => 0 
      [dflt_value] => 
      [pk] => 0 
     ) 

) 

这将是结果不如做个

Array 
(
    [0] => id 
    [1] => title 
    [2] => timestamp 
    [3] => note 
) 

但选择PRAGMA table_info name（表名）不工作

Answer 1

你不能改变table_info的输出，但是重复循环结果对象并构建所需的列名称数组很简单。