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PHPでpluck

8
Last updated at Posted at 2018-04-11

PHPでのpluck関数はarray_columnです。

フレームワーク等にpluckがあったりするので無いものと思いがちだったり、個人的に忘れやすいのでメモ。

ドキュメントを確認するとオブジェクトにも対応していて(PHP7)、結果配列のキーも設定できる。

$records = array(
    array(
        'id' => 2135,
        'first_name' => 'John',
        'last_name' => 'Doe',
    ),
    array(
        'id' => 3245,
        'first_name' => 'Sally',
        'last_name' => 'Smith',
    ),
    array(
        'id' => 5342,
        'first_name' => 'Jane',
        'last_name' => 'Jones',
    ),
    array(
        'id' => 5623,
        'first_name' => 'Peter',
        'last_name' => 'Doe',
    )
);
 
$first_names = array_column($records, 'first_name');
print_r($first_names);
Array
(
    [0] => John
    [1] => Sally
    [2] => Jane
    [3] => Peter
)
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