问题描述
我有一个关联数组:
Array (
[0] => Array ( [term_title] => black )
[1] => Array ( [color_quantity] => 2 )
[2] => Array ( [color_price] => 22 )
[3] => Array ( [term_title] => blue )
[4] => Array ( [color_quantity] => 3 )
[5] => Array ( [color_price] => 33 ))
如何将其更改为:
Array (
[0] => Array ( [term_title] => black, [color_quantity] => 2, [color_price] => 22 )
[1] => Array ( [term_title] => blue, [color_quantity] => 3, [color_price] => 33 ) )
我尝试以下代码:
$post = array();
for($i = 0; $i < 2; $i++){
foreach($feild_data as $data){
$post[$i][$data['name']] = $data['value'];
}
}
,但是它将最后一个索引重复两次.即
but it repeat the last index two times. i.e.
Array (
[0] => Array ( [term_title] => blue, [color_quantity] => 3, [color_price] => 33 )
[1] => Array ( [term_title] => blue, [color_quantity] => 3, [color_price] => 33 ) )
推荐答案
如果您喜欢语言构造和基本算术,则可以简单地遍历数组,除以3,然后将该浮点值用作第一级键-php会自动 floor()
该值形成一个整数
If you like language constructs and basic arithmetic, then you can simply loop through the array, divide by 3 and use that float value as the first level key -- php will automatically floor()
that value to form an integer
代码:(演示)
foreach ($array as $index => $subarray) {
$key = key($subarray);
$result[$index / 3][$key] = $subarray[$key];
}
var_export($result);
或者,如果您更喜欢函数语法(并且我经常这样做),则可以形成子数组组,然后合并/展平这些组.以下技术不需要声明 $ result
变量,并且可以单行编写.
Alternatively, if you prefer functional syntax (and I often do), you can form groups of subarrays, then merge/flatten the groups. The technique below does not require the declaration of a $result
variable and could be written as a one-liner.
代码:(演示)
var_export(
array_map(
function($v) {
return array_merge(...$v);
},
array_chunk($array, 3)
)
);
两种技术都提供以下输出:
Both techniques provide the following output:
array (
0 =>
array (
'term_title' => 'black',
'color_quantity' => 2,
'color_price' => 22,
),
1 =>
array (
'term_title' => 'blue',
'color_quantity' => 3,
'color_price' => 33,
),
)
这篇关于如何将单元素关联数组的数组重组为分组的子数组?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!