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php二维数组相同键名相加

Array

(

[uid] => 19

[pid] => Array

(

[0] => 91

[1] => 81

)

[price] => Array

(

[0] => 6

[1] => 14

)

[pnum] => Array

(

[0] => 1

[1] => 1

)

)

求相同键名的值相加如(price 的相加结果) 数组条数不确定

------解决方案--------------------

$ar = Array(

'uid' => 19,

'pid' => Array (

0 => 91,

1 => 81,

),

'price' => Array (

0 => 6,

1 => 14,

),

'pnum' => Array (

0 => 1,

1 => 1,

),

);

$r = array_map(function($t) {

return is_array($t) ? array_sum($t) : $t;

}, $ar);

print_r($r);

Array

(

[uid] => 19

[pid] => 172

[price] => 20

[pnum] => 2

)

------解决方案--------------------

直接用foreach也可以。

$ar = Array(

'uid' => 19,

'pid' => Array (

0 => 91,

1 => 81,

),

'price' => Array (

0 => 6,

1 => 14,

),

'pnum' => Array (

0 => 1,

1 => 1,

),

);

foreach($ar as $k=>$v){

$arr[$k] = is_array($v) ? array_sum($v) : $v;

}

print_r($arr);

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