PHP 二維數群組轉換為一維數組之array_column()

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項目需求：

Array(    [0] => Array        (            [id] => 1        )    [1] => Array        (            [id] => 7        )    [2] => Array        (            [id] => 9        )    [3] => Array        (            [id] => 10        )    [4] => Array        (            [id] => 12        )    [5] => Array        (            [id] => 30        )    [6] => Array        (            [id] => 31        )    [7] => Array        (            [id] => 32        )    [8] => Array        (            [id] => 33        )    [9] => Array        (            [id] => 34        )    [10] => Array        (            [id] => 45        )    [11] => Array        (            [id] => 47        )    [12] => Array        (            [id] => 50        )    [13] => Array        (            [id] => 51        )    [14] => Array        (            [id] => 52        )    [15] => Array        (            [id] => 55        )    [16] => Array        (            [id] => 76        ))

轉換成：

Array(    [0] => 1    [1] => 7    [2] => 9    [3] => 10    [4] => 12    [5] => 30    [6] => 31    [7] => 32    [8] => 33    [9] => 34    [10] => 45    [11] => 47    [12] => 50    [13] => 51    [14] => 52    [15] => 55    [16] => 76)

除去迴圈，比較有效率的函數：

array_column — 返回數組中指定的一列

只需要array_column(dst_array,column_name)

返回就是column_name的值 組成的一維數組。

 

PHP 二維數群組轉換為一維數組之array_column()