Codeigniter:从单个列获取所有值作为数组 [英] Codeigniter: get all values from single column as array
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问题描述
这是我的查询,用于从t中获取单列
Here is my query to get a single column from t
$sql = "SELECT `id` FROM `loc8_groups`";
$query = $this->db->query($sql);
print_r($query>result());
它以这种方式产生数组结果.
Its produce array result like this way.
Array
(
[0] => stdClass Object
(
[id] => 1
)
[1] => stdClass Object
(
[id] => 2
)
[2] => stdClass Object
(
[id] => 3
)
)
但是我想要结果作为包含所有ids
的单个关联数组.
But i want result as single associative array that contains all the ids
.
推荐答案
尝试以下代码:
$sql = "SELECT `id` FROM `loc8_groups`";
$query = $this->db->query($sql);
$array1=$query>result_array();
$arr = array_map (function($value){
return $value['id'];
} , $array1);
print_r($arr);
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