PHP 二維數組合并（二）

標籤：

例如有如下數組：

$arr = array(        0=>array(            ‘product‘=>‘120‘,            ‘type‘=>0        ),        1=>array(            ‘product‘=>‘120‘,            ‘type‘=>0                ),        2=>array(            ‘product‘=>‘120‘,            ‘type‘=>1                ),        3=>array(            ‘product‘=>‘121‘,            ‘type‘=>0                ),        4=>array(            ‘product‘=>‘121‘,            ‘type‘=>1                ),        5=>array(            ‘product‘=>‘122‘,            ‘type‘=>2                ),            6=>array(            ‘product‘=>‘122‘,            ‘type‘=>3                ),            7=>array(            ‘product‘=>‘122‘,            ‘type‘=>3                ),            8=>array(            ‘product‘=>‘122‘,            ‘type‘=>3                ),                                9=>array(            ‘product‘=>‘123‘,            ‘type‘=>2                ),                    );

要求：

① 相同 product 值的數組要合并成一個數組，並計算具有相同 product 的數組的個數；

② 計算相同 product 值的數組的 type，相同的 type 保留一個，並計該 type 相加的數量；不同的 type 也進行保留，數量為1

即將上面的數群組轉換為下面的數組：

array  2 =>     array      ‘product‘ => string ‘120‘ (length=3)      ‘count‘ => int 3      ‘newtype‘ =>         array          0 => int 2          1 => int 1  4 =>     array      ‘product‘ => string ‘121‘ (length=3)      ‘count‘ => int 2      ‘newtype‘ =>         array          0 => int 1          1 => int 1  8 =>     array      ‘product‘ => string ‘122‘ (length=3)      ‘count‘ => int 4      ‘newtype‘ =>         array          2 => int 1          3 => int 3  9 =>     array      ‘product‘ => string ‘123‘ (length=3)      ‘count‘ => int 1      ‘newtype‘ =>         array          2 => int 1

php：

<?php$arr = array(        0=>array(            ‘product‘=>‘120‘,            ‘type‘=>0        ),        1=>array(            ‘product‘=>‘120‘,            ‘type‘=>0                ),        2=>array(            ‘product‘=>‘120‘,            ‘type‘=>1                ),        3=>array(            ‘product‘=>‘121‘,            ‘type‘=>0                ),        4=>array(            ‘product‘=>‘121‘,            ‘type‘=>1                ),        5=>array(            ‘product‘=>‘122‘,            ‘type‘=>2                ),            6=>array(            ‘product‘=>‘122‘,            ‘type‘=>3                ),            7=>array(            ‘product‘=>‘122‘,            ‘type‘=>3                ),            8=>array(            ‘product‘=>‘122‘,            ‘type‘=>3                ),                                9=>array(            ‘product‘=>‘123‘,            ‘type‘=>2                ),                    );var_dump($arr);//首先對數組排序，例如：order by product asc,type asc$i = 1;$j = 1;$newtype = array();foreach($arr as $k=>$v){    if($k < count($arr)-1){        if($arr[$k][‘product‘] == $arr[$k+1][‘product‘]){            if($arr[$k][‘type‘] == $arr[$k+1][‘type‘]){                $j++;                $newtype[$arr[$k][‘product‘]][$arr[$k+1][‘type‘]] = $j;            }else{                $j = 1;                $newtype[$arr[$k][‘product‘]][$arr[$k+1][‘type‘]] = $j;            }            $i++;            $arr[$k+1][‘count‘] = $i;            $arr[$k][‘del‘] = 1;        }else{            $j = 1;            $newtype[$arr[$k+1][‘product‘]][$arr[$k+1][‘type‘]] = $j;            $i = 1;            $arr[$k+1][‘count‘] = $i;        }    }}foreach ($arr as $k=>$v) {    if(@$arr[$k][‘del‘]){        unset($arr[$k]);    }}echo ‘<hr>‘;var_dump($arr);echo ‘<hr>‘;var_dump($newtype);foreach($arr as $key=>$val){    foreach ($newtype as $k => $v) {        if($arr[$key][‘product‘] == $k){            $arr[$key][‘newtype‘] = $v;        }    }    unset($arr[$key][‘type‘]);}echo ‘<hr>‘;var_dump($arr);

 

PHP 二維數組合并（二）