php - 如何在一列php中对子数组进行分组

Question

我有这样的数组：

[
   0: {name: "Judi", age: 15, hobby: "playing a game"},
   1: {name: "Judi", age: 15, hobby: "swimming"},
   2: {name: "Judi", age: 15, hobby: "playing a basketball"},
   3: {name: "Jedi", age: 14, hobby: "coding"},
   4: {name: "Jedi", age: 14, hobby: "reading"},
   5: {name: "Jedi", age: 14, hobby: "listen to the music"},
]

我想让我的数据看起来像这样：

[
   0: {name: "Judi", age: 15, hobby: "playing a game, swimming, playing a basketball"},
   0: {name: "Jedi", age: 14, hobby: "coding, reading, listen to the music"},
]

如何像这样对我的数据进行分组？谢谢你

标签： phplaravel

Answer 1

这确实是一个非常简单的迭代并构建了一个新数组。像这样的东西。

<?php

$array = [
    ['name' => 'Judi', 'age' => 15, 'hobby' => 'playing a game'],
    ['name' => 'Judi', 'age' => 15, 'hobby' => 'swimming'],
    ['name' => 'Judi', 'age' => 15, 'hobby' => 'playing a basketball'],
    ['name' => 'Jedi', 'age' => 14, 'hobby' => 'coding'],
    ['name' => 'Jedi', 'age' => 14, 'hobby' => 'reading'],
    ['name' => 'Jedi', 'age' => 14, 'hobby' => 'listen to the music'],
];

$result = [];

foreach ($array as $item) {
    $key = $item['name'] . $item['age'];
    if (!array_key_exists($key, $result)) {
        $result[$key] = [
            'name'  => $item['name'],
            'age'   => $item['age'],
            'hobby' => '',
        ];
    }

    $result[$key]['hobby'] = $result[$key]['hobby'] ? $result[$key]['hobby'] . ', ' . $item['hobby'] : $item['hobby'];
}

var_dump(array_values($result));