我有一个这样的数组：D
Array
(
[0] => Array
(
[type] => AAA
[label_id] => A1,35
)
[1] => Array
(
[type] => AAA
[label_id] => A2,34
)
[2] => Array
(
[type] => BBB
[label_id] => B1,29
)
[3] => Array
(
[type] => CCC
[label_id] => C1,20
)
[4] => Array
(
[type] => CCC
[label_id] => C2,19
)
[5] => Array
(
[type] => CCC
[label_id] => C3,18
)
)
现在我想用同样的关键和价值使它成为一个这样的组合.
Array
(
[0] => Array
(
[type] => AAA
[label_id] => Array
(
[0] => A1,35
[1] => A2,34
)
)
[1] => Array
(
[type] => BBB
[label_id] => Array
(
[0] => B1,29
)
)
[2] => Array
(
[type] => CCC
[label_id] => Array
(
[0] => C1,20
[1] => C2,19
[2] => C3,18
)
)
)
有谁知道该怎么做？
这应该是诀窍
原文链接：https://www.f2er.com/php/131995.html$args = array
(
array( 'type' => 'AAA','label_id' => 'A1,35' ),array( 'type' => 'AAA','label_id' => 'A2,34' ),array( 'type' => 'BBB','label_id' => 'B1,29' ),array( 'type' => 'CCC','label_id' => 'C1,20' ),'label_id' => 'C2,19' ),'label_id' => 'C3,18' )
);
$tmp = array();
foreach($args as $arg)
{
$tmp[$arg['type']][] = $arg['label_id'];
}
$output = array();
foreach($tmp as $type => $labels)
{
$output[] = array(
'type' => $type,'label_id' => $labels
);
}
var_dump($output);
输出为：
array
0 =>
array
'type' => string 'AAA' (length=3)
'label_id' =>
array
0 => string 'A1,35' (length=5)
1 => string 'A2,34' (length=5)
1 =>
array
'type' => string 'BBB' (length=3)
'label_id' =>
array
0 => string 'B1,29' (length=5)
2 =>
array
'type' => string 'CCC' (length=3)
'label_id' =>
array
0 => string 'C1,20' (length=5)
1 => string 'C2,19' (length=5)
2 => string 'C3,18' (length=5)
