php - 如何使用 YEAR 函数从数据库读取数组

Question

这是选择:

select distinct YEAR(ovl_dat) from db;

我得到的数组看起来像这样:

Array ( 
[0] => stdClass Object ( [YEAR(ovl_dat)] => 1995 ) 
[1] => stdClass Object ( [YEAR(ovl_dat)] => 1957 ) 
[2] => stdClass Object ( [YEAR(ovl_dat)] => 1994 ) 
[3] => stdClass Object ( [YEAR(ovl_dat)] => 1982 ) 
[4] => stdClass Object ( [YEAR(ovl_dat)] => 1997 ) ) 

这是将数组读入选项(joomla)的代码

foreach($jaren as $enkeljaar) {
   $i++;
   $options[$i] = JHTML::_('select.option',$i ,$enkeljaar->YEAR(ovl_dat));
}

我在读取 $enkeljaar->YEAR(ovl_dat) 时遇到问题。有人可以告诉我该怎么做吗？

问候一月

Answer 1

您应该为列名称使用别名，

select distinct YEAR(ovl_dat) as my_year from db;

引用别名来获取值，例如假设您的结果在 $row 中返回

$row['my_year'];