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【Laravel】CollectionのsortByとsortByDescメソッド

はじめに

今回もLaravelのCollectionのメソッドについてまとめたいと思います。

sortByとsortByDescメソッドでキーを指定して並べ替える

・sortByメソッドで昇順に並び替える

$collection = collect([
    ['id' => 1, 'name' => '山田', 'age' => 18],
    ['id' => 2, 'name' => '佐藤', 'age' => 38],
    ['id' => 3, 'name' => '小林', 'age' => 25],
]);

$sorted = $collection->sortBy('age');

print_r($sorted->toArray());

実行結果は下記になります。

Array
(
    [0] => Array
        (
            [id] => 1
            [name] => 山田
            [age] => 18
        )

    [2] => Array
        (
            [id] => 3
            [name] => 小林
            [age] => 25
        )

    [1] => Array
        (
            [id] => 2
            [name] => 佐藤
            [age] => 38
        )

)

・sortByDescメソッドで降順に並び替える
(sortByの逆の順番になります。)

$collection = collect([
    ['id' => 1, 'name' => '山田', 'age' => 18],
    ['id' => 2, 'name' => '佐藤', 'age' => 38],
    ['id' => 3, 'name' => '小林', 'age' => 25],
]);

$sorted = $collection->sortByDesc('age');

print_r($sorted->toArray());

実行結果は下記になります。

Array
(
    [1] => Array
        (
            [id] => 2
            [name] => 佐藤
            [age] => 38
        )

    [2] => Array
        (
            [id] => 3
            [name] => 小林
            [age] => 25
        )

    [0] => Array
        (
            [id] => 1
            [name] => 山田
            [age] => 18
        )
)

おわりに

いかがでしたでしょうか。
様々な条件で並び替えをして試してみてください。

yukachin0414
2019.11.01〜webエンジニアになりました(*´꒳`*)
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