数组计算差值及项的小计-PHP Tutorial-php.cn

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数组计算差值及项的小计

Jun 23, 2016 pm 01:59 PM

$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; $i<count($a); $i++) {    $res[] = array($a[$i]['type'], $a[$i]['count'] - $b[$i]['count']);  }  return $res;}$t = call_user_func_array('foo', $s);print_r($t);

Copy after login

Array(    [0] => Array        (            [0] => BEA01-120N            [1] => -16        )    [1] => Array        (            [0] => BEA21-110N            [1] => 96        ))

Copy after login

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);

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