数组计算差值及项的小计

$s = array ( 0 => array ( 0 => array ( 0 => '2014-04-11', 'time' => '2014-04-11', 1 => 'BEA01-120N', 'type' => 'BEA01-120N', 2 => 176, 'count' => 176, ), 1 => array ( 0 => '2014-04-11', 'time' => '2014-04-11', 1 => 'BEA21-110N', 'type' => 'BEA21-110N', 2 => 1056, 'count' => 1056, ), ), 1 => array ( 0 => array ( 0 => '2014-04-11', 'time' => '2014-04-11', 1 => 'BEA01-120N', 'type' => 'BEA01-120N', 2 => 192, 'count' => 192, ), 1 => array ( 0 => '2014-04-11', 'time' => '2014-04-11', 1 => 'BEA21-110N', 'type' => 'BEA21-110N', 2 => 960, 'count' => 960, ), ), )

求其type对应的差值和$s[0]及$s[1]的type项的小计。（小计部分已实现，用了unset）


理想得到的结果：

小计的结果： BEA01-120N 176 BEA01-120N 192 差值：176-192 = -16
BEA21-110N 1056 BEA21-110N 960 1056-960 = 96
小计：176+1056=1232 192+960 = 1152

回复讨论(解决方案)

$s = array (  0 => array (    0 => array (      0 => '2014-04-11', 'time' => '2014-04-11',      1 => 'BEA01-120N', 'type' => 'BEA01-120N',      2 => 176, 'count' => 176,    ),    1 => array (      0 => '2014-04-11', 'time' => '2014-04-11',      1 => 'BEA21-110N', 'type' => 'BEA21-110N',      2 => 1056, 'count' => 1056,    ),  ),  1 => array (    0 => array (      0 => '2014-04-11', 'time' => '2014-04-11',      1 => 'BEA01-120N', 'type' => 'BEA01-120N',      2 => 192, 'count' => 192,    ),    1 => array (      0 => '2014-04-11', 'time' => '2014-04-11',      1 => 'BEA21-110N', 'type' => 'BEA21-110N',      2 => 960, 'count' => 960,    ),  ),);function foo($a, $b) {  for($i=0; $i
Array(    [0] => Array        (            [0] => BEA01-120N            [1] => -16        )    [1] => Array        (            [0] => BEA21-110N            [1] => 96        ))
小计你已经做了，我就偷懒了  
  $s = array (  
   0 => array (  
     0 => array (  
       0 => '2014-04-11', 'time' => '2014-04-11',  
       1 => 'BEA01-120N', 'type' => 'BEA01-120N',  
       2 => 176, 'count' => 176,  
     ),  
     1 => array (  
       0 => '2014-04-11', 'time' => '2014-04-11',  
       1 => 'BEA21-110N', 'type' => 'BEA21-110N',  
       2 => 1056, 'count' => 1056,  
     ),  
   ),  
   1 => array (  
     0 => array (  
       0 => '2014-04-11', 'time' => '2014-04-11',  
       1 => 'BEA01-120N', 'type' => 'BEA01-120N',  
       2 => 192, 'count' => 192,  
     ),  
     1 => array (  
       0 => '2014-04-11', 'time' => '2014-04-11',  
       1 => 'BEA21-110N', 'type' => 'BEA21-110N',  
       2 => 960, 'count' => 960,  
     ),  
   ),  
 );  
 function my($a,$b){  
     foreach($a as $k=>$v){  
         echo $a[$k]['count']-$b[$k]['count']."
";  
     }  
 }  
 call_user_func_array('my',$s);