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經(jīng)過上面的指導(dǎo)，發(fā)現(xiàn)真的好簡單，現(xiàn)在與大家一同分享。
| ID | FIELD1 | FIELD2 | FIELD3 | FIELD4 | Key |
| 1 | *** | *** | *** | *** | meat1 |
| 2 | *** | *** | *** | *** | meat1 |
| 3 | *** | *** | *** | *** | meat1 |
| 4 | *** | *** | *** | *** | meat1 |
| 5 | *** | *** | *** | *** | fruit2 |
| 6 | *** | *** | *** | *** | fruit2 |
| 7 | *** | *** | *** | *** | fruit2 |
| 8 | *** | *** | *** | *** | fruit2 |
| 9 | *** | *** | *** | *** | fruit2 |
| 10 | *** | *** | *** | *** | food3 |
| 11 | *** | *** | *** | *** | food3 |
現(xiàn)在有如上所示的結(jié)果
要求：要對這個(gè)已經(jīng)按key進(jìn)行排序了的數(shù)組進(jìn)行操作，相同key的項(xiàng)進(jìn)行處理。
提示：這個(gè)是很典型的母子表的結(jié)構(gòu)，也就是說其實(shí)它是兩張表的合并，可以這樣處理成兩個(gè)數(shù)組，方便數(shù)組里面對塊的操作
array1:ID|Key
| ID | Key |
| 1 | meat1 |
| 2 | meat1 |
| 3 | meat1 |
| 4 | meat1 |
| 5 | fruit2 |
| 6 | fruit2 |
| 7 | fruit2 |
| 8 | fruit2 |
| 9 | fruit2 |
| 10 | food3 |
| 11 | food3 |
array2:key => array(ID,FIELD1,FIELD2,FIELD3,FIELD4,FIELD5,Key)
| ID | FIELD1 | FIELD2 | FIELD3 | FIELD4 | Key | |
| meat1=> | 1 | *** | *** | *** | *** | meat1 |
| 2 | *** | *** | *** | *** | meat1 | |
| 3 | *** | *** | *** | *** | meat1 | |
| 4 | *** | *** | *** | *** | meat1 | |
| fruit2=> | 5 | *** | *** | *** | *** | fruit2 |
| 6 | *** | *** | *** | *** | fruit2 | |
| 7 | *** | *** | *** | *** | fruit2 | |
| 8 | *** | *** | *** | *** | fruit2 | |
| 9 | *** | *** | *** | *** | fruit2 | |
| food3=> | 10 | *** | *** | *** | *** | food3 |
| 11 | *** | *** | *** | *** | food3 |
實(shí)現(xiàn)如上數(shù)組分離代碼
這樣后，訪問tempArray的塊數(shù)據(jù)就非常方便了
foreach($tempArray as $row){
array1[$row['ID']] = $row['Key'];
array2[$row['Key']][] = $row;
}
訪問和處理代碼
foreach($array1 as $ID => $Key){
$this->doSomeThing($ID);
//訪問tempArray的塊數(shù)組$array2[$Key]
$this->doSomeThing2($array2[$Key]);
}
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