eleven26

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源码

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示例

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<?php
 
require __DIR__ . '/bootstrap/app.php';
 
$arr = [
    [
        'name' => 'John',
        'age' => 23
    ],
    [
        'name' => 'Neo',
        'age' => 25
    ],
    [
        'name' => 'John',
        'age' => 24
    ]
];
 
$v = collect($arr)->mapToDictionary(function ($v) {
    // 主要作用: 可以自定义每一项的 key value
    return [$v['name'] => $v];
})->toArray();
 
// $v 与 $v1 相等
$v1 = collect($arr)->groupBy('name')->toArray();
 
dd($v);

输出

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$collection = collect(range(1, 9));
 
$chunks = $collection->chunk(2);
 
$labeld = $chunks->mapSpread(function ($odd, $even) {
    return "Odd: {$odd} Even: {$even}";
});
 
$numbers = collect([3, 5, 7]);
$words = collect(['three', 'five', 'seven']);
 
$results = $numbers->zip($words)
    ->mapSpread(function ($number, $word) {
        return $number . '=' . $word;
    });
 
dd($labeld->toArray(), $results->toArray());
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if (! function_exists('dd')) {
    /**
     * Dump the passed variables and end the script.
     *
     * @param  mixed  $args
     * @return void
     */
    function dd(...$args)
    {
        header('Access-Control-Allow-Origin: *');
        header('Access-Control-Allow-Methods: *');
        header('Access-Control-Allow-Headers: *');
        http_response_code(500);
 
        foreach ($args as $x) {
            (new Illuminate\Support\Debug\Dumper)->dump($x);
        }
 
        die(1);
    }
}
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