development laravel php

The mapWithKeys method iterates through the collection and passes each value to the given callback. The callback should return an associative array containing a single key / value pair:

$collection = collect([
    [
        'name' => 'John',
        'department' => 'Sales',
        'email' => 'john@example.com',
    ],
    [
        'name' => 'Jane',
        'department' => 'Marketing',
        'email' => 'jane@example.com',
    ]
]);
 
$keyed = $collection->mapWithKeys(function ($item, $key) {
    return [$item['email'] => $item['name']];
});
 
$keyed->all();
 
/*
    [
        'john@example.com' => 'John',
        'jane@example.com' => 'Jane',
    ]
*/

You might also like:

If this post was enjoyable or useful for you, please share it! If you have comments, questions, or feedback, you can email my personal email. To get new posts, subscribe use the RSS feed.