Addition of two-dimensional arrays with identical key names in php_PHP tutorial

Addition of php two-dimensional arrays with the same key names

Array

　(

　[uid] => 19

　[pid] => Array

　(

　[0] => 91

　[1] => 81

　)

　[price] => Array

　(

　[0] => 6

　[1] => 14

　)

　[pnum] => Array

　(

　[0] => 1

　[1] => 1

　)

　)

Find the addition of values ​​with the same key name, such as (the addition result of price). The number of array items is uncertain

　------Solution--------------------

　$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

　)

　------Solution--------------------

You can also use foreach directly.

　$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);

http://www.bkjia.com/PHPjc/820418.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/820418.htmlTechArticlephp two-dimensional array with the same key name addition Array ( [uid] = 19 [pid] = Array ( [0 ] = 91 [1] = 81 ) [price] = Array ( [0] = 6 [1] = 14 ) [pnum] = Array ( [0] = 1 [1] = 1 ) ) Find values ​​with the same key name ...