检测重复的数组，然后将插入推入PHP中的新数组

Question

如果有一个关联数组，其值id_post是重复的，它将被插入到新数组中。 关键是像图像。从$ score到$ newArray。

$score = [
    ['id_post' => '1', 'score' => '4'],
    ['id_post' => '5', 'score' => '10'],
    ['id_post' => '1', 'score' => '7']
];

$newArray = [
    [
        ['id_post' => '1', 'score' => '4'],
        ['id_post' => '1', 'score' => '7']
    ],
    [
        ['id_post' => '5', 'score' => '10']
    ]
];

Answer 1

您可以使用Collection类来帮助将它们分组：

collect($score)->groupBy('id_post')->values()->toArray();

Laravel 8.x Docs - Collections - Available Methods - groupBy

Laravel 8.x Docs - Collections - Available Methods - values

Laravel 8.x Docs - Collections - Available Methods - toArray