数组拆分有关问题

数组拆分问题
假设数组a：

array (

  0 => 

  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',

  ),

  1 => 

  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',

  ),

)

当满足整个total为一定条件时，将数组拆分开来。例中total为675，假设拆分条件为total满足225，也就是拆分为3个数组，如何能将数组拆分成这样？

//b

array (

  0 => 

  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',

  ),

  1 => 

  array (

    'po_num' => 'DYNP-770266110-00',

    'plant' => 'DYNP',

    'get_date' => '2013-09-09',

    'cust_no' => '12654172',

    'total' => '165',

    'snp' => '15',

    'mount' => '11',

    'lp_no' => 'P000000D',

  ),

)

//c

array (

  0 => 

  array (

    'po_num' => 'DYNP-770266110-00',

    'plant' => 'DYNP',

    'get_date' => '2013-09-09',

    'cust_no' => '12647212',

    'total' => '225',

    'snp' => '15',

    'mount' => '15',

    'lp_no' => 'P000000D',

  ),

）

//d

array (

  0 => 

  array (

    'po_num' => 'DYNP-770266110-00',

    'plant' => 'DYNP',

    'get_date' => '2013-09-09',

    'cust_no' => '12647212',

    'total' => '225',

    'snp' => '15',

    'mount' => '15',

    'lp_no' => 'P000000D',

  ),

）

分享到：

------解决方案--------------------

$a = array (

  0 => 

  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',

  ),

  1 => 

  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',

  ),

);

$t = 225;

foreach($a as $v) {

  $t1 = $v['total'];

  $v['total'] = $t1 % $t;

  $res[] = $v;

  $t1 -= $v['total'];

  while($t1 >= $t) {