展示不相鄰的資料

顯示不相鄰的資料
本帖最後由 lazygc520 於 2014-08-05 14:02:30 編輯

已知$arrs,

array (
  0 => 
  array (
    'pono' => 'a',
    'no' => '4711',
  ),
  1 => 
  array (
    'pono' => 'a',
    'no' => '4714',
  ),
  2 => 
  array (
    'pono' => 'b',
    'no' => '4714',
  ),
  3 => 
  array (
    'pono' => 'b',
    'no' => '4715',
  ),
  4 => 
  array (
    'pono' => 'c',
    'no' => '4715',
  ),
  5 => 
  array (
    'pono' => 'c',
    'no' => '4716',
  ),
)

現將同pono的資料合併，得：

$tmp=array();
$data=array();
$i=0;
foreach($arrs as $key=>$arr){
if(!empty($tmp) && array_key_exists($arr['pono'],$tmp)){
        $key=$tmp[$arr['pono']];
        $arr_no=explode(',',$data[$key]['no']);
        if(!in_array($arr['no'],$arr_no)) $data[$key]['no'].=','.$arr['no'];
    }else{
        $tmp[$arr['pono']]=$i;
        $data[$i++]=$arr;
    }
}
print_r($data);

//得到結果：
Array
(
    [0] => Array
        (
            [pono] => a
            [no] => 4711,4714
        )

    [1] => Array
        (
            [pono] => b
            [no] => 4714,4715
        )

    [2] => Array
        (
            [pono] => c
            [no] => 4715,4716
        )
)

現在想求僅顯示不相鄰的no，如例中的項：
[0] => Array
(
[pono] => a
[no] => 4711,4714
)

請問怎麼求？
------解決方案--------------------

$arrs = array (
  0 => 
  array (
    'pono' => 'a',
    'no' => '4711',
  ),
  1 => 
  array (
    'pono' => 'a',
    'no' => '4714',
  ),
  2 => 
  array (
    'pono' => 'b',
    'no' => '4714',
  ),
  3 => 
  array (
    'pono' => 'b',
    'no' => '4715',
  ),
  4 => 
  array (
    'pono' => 'c',
    'no' => '4715',
  ),
  5 => 
  array (
    'pono' => 'c',
    'no' => '4716',
  ),
);


$tmp=array();
$data=array();
$i=0;
foreach($arrs as $key=>$arr){
        if(!empty($tmp) && array_key_exists($arr['pono'],$tmp)){
        $key=$tmp[$arr['pono']];
        $arr_no=explode(',',$data[$key]['no']);
        if(!in_array($arr['no'],$arr_no)) $data[$key]['no'].=','.$arr['no'];
    }else{
        $tmp[$arr['pono']]=$i;
        $data[$i++]=$arr;
    }
}
print_r($data);

$result = array();

foreach($data as $val){
list($a, $b) = explode(',', $val['no']);
