将已知数组按条件分为若个新数组

[littlebirds]

已知数组：

array (
  0 => 
  array (
    'po_num' => 'DYNP-770266110-00',
    'plant' => 'DYNP',
    'get_date' => '2013-09-09',
    'cust_no' => '12654172',
    'total' => '615',
    'snp' => '15',
    'mount' => '41',
    'lp_no' => 'P000000D',
  ),
  1 => 
  array (
    'po_num' => 'DYNP-770266110-00',
    'plant' => 'DYNP',
    'get_date' => '2013-09-09',
    'cust_no' => '12647212',
    'total' => '60',
    'snp' => '15',
    'mount' => '4',
    'lp_no' => 'P000000D',
  ),
)

能否按字段total为100为单位把数组再分为若干个新的数组？并加上序号字段在其中，比如：

  array (
    'po_num' => '1/7',//新增字段信息
    'po_num' => 'DYNP-770266110-00',
    'plant' => 'DYNP',
    'get_date' => '2013-09-09',
    'cust_no' => '12654172',
    'total' => '615',
    'snp' => '15',
    'mount' => '41',
    'lp_no' => 'P000000D',
  ),
...
）

[丢雷老谋]

需求不明确~~

[xuzuning]

又来了？

$ar = array (
  0 => 
  array (
    'po_num' => 'DYNP-770266110-00',
    'plant' => 'DYNP',
    'get_date' => '2013-09-09',
    'cust_no' => '12654172',
    'total' => '615',
    'snp' => '15',
    'mount' => '41',
    'lp_no' => 'P000000D',
  ),
  1 => 
  array (
    'po_num' => 'DYNP-770266110-00',
    'plant' => 'DYNP',
    'get_date' => '2013-09-09',
    'cust_no' => '12647212',
    'total' => '60',
    'snp' => '15',
    'mount' => '4',
    'lp_no' => 'P000000D',
  ),
);
$split_num = 100;
foreach($ar as $item) {
  if($item['total'] <= $split_num) {
    $res[] = $item;
    continue;
  }
  $total = $item['total'];
  $n = ceil($total/$split_num);
  for($i=1; $i<$n; $i++) {
    $res[] = array_merge(array('po_nume' => "$i/$n"), $item, array('total' => $split_num));
  }
  $res[] = array_merge(array('po_nume' => "$i/$n"), $item, array('total' => $total%$split_num));
}
print_r($res);

Array
(
    [0] => Array
        (
            [po_nume] => 1/7
            [po_num] => DYNP-770266110-00
            [plant] => DYNP
            [get_date] => 2013-09-09
            [cust_no] => 12654172
            [total] => 100
            [snp] => 15
            [mount] => 41
            [lp_no] => P000000D
        )

    [1] => Array
        (
            [po_nume] => 2/7
            [po_num] => DYNP-770266110-00
            [plant] => DYNP
            [get_date] => 2013-09-09
            [cust_no] => 12654172
            [total] => 100
            [snp] => 15
            [mount] => 41
            [lp_no] => P000000D
        )

    [2] => Array
        (
            [po_nume] => 3/7
            [po_num] => DYNP-770266110-00
            [plant] => DYNP
            [get_date] => 2013-09-09
            [cust_no] => 12654172
            [total] => 100
            [snp] => 15
            [mount] => 41
            [lp_no] => P000000D
        )

    [3] => Array
        (
            [po_nume] => 4/7
            [po_num] => DYNP-770266110-00
            [plant] => DYNP
            [get_date] => 2013-09-09
            [cust_no] => 12654172
            [total] => 100
            [snp] => 15
            [mount] => 41
            [lp_no] => P000000D
        )

    [4] => Array
        (
            [po_nume] => 5/7
            [po_num] => DYNP-770266110-00
            [plant] => DYNP
            [get_date] => 2013-09-09
            [cust_no] => 12654172
            [total] => 100
            [snp] => 15
            [mount] => 41
            [lp_no] => P000000D
        )

    [5] => Array
        (
            [po_nume] => 6/7
            [po_num] => DYNP-770266110-00
            [plant] => DYNP
            [get_date] => 2013-09-09
            [cust_no] => 12654172
            [total] => 100
            [snp] => 15
            [mount] => 41
            [lp_no] => P000000D
        )

    [6] => Array
        (
            [po_nume] => 7/7
            [po_num] => DYNP-770266110-00
            [plant] => DYNP
            [get_date] => 2013-09-09
            [cust_no] => 12654172
            [total] => 15
            [snp] => 15
            [mount] => 41
            [lp_no] => P000000D
        )

    [7] => Array
        (
            [po_num] => DYNP-770266110-00
            [plant] => DYNP
            [get_date] => 2013-09-09
            [cust_no] => 12647212
            [total] => 60
            [snp] => 15
            [mount] => 4
            [lp_no] => P000000D
        )

)

[littlebirds]

引用 2 楼 xuzuning 的回复:

...

是啊。又是这种问题。 [6] => Array ( [po_no] => 7/7 [po_num] => DYNP-770266110-00 [plant] => DYNP [get_date] => 2013-09-09 [cust_no] => 12654172 [total] => 15 ) [7] => Array ( [po_num] => DYNP-770266110-00 [plant] => DYNP [get_date] => 2013-09-09 [cust_no] => 12647212 [total] => 60 ) 这个能不能作为一项来处理？将原来的数组并到前一个数组中，而不是重新计算$i/$n的序列号。变成这样的形式： [6] => Array ( [po_no] => 7/7 [po_num] => DYNP-770266110-00 [plant] => DYNP [get_date] => 2013-09-09 [cust_no] => 12654172 [total] => 15 ) [7] => Array ( [po_no] => 7/7 [po_num] => DYNP-770266110-00 [plant] => DYNP [get_date] => 2013-09-09 [cust_no] => 12647212 [total] => 60 //15+60=75 < 100 )

[littlebirds]

引用 2 楼 xuzuning 的回复:

又来了？

不好意思，发现问过这个问题了，抱歉！