Here's how you can merge two collections in Laravel

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In Laravel, merging two collections is a common operation that allows you to combine the elements of two collections into a single collection. Laravel provides a convenient method called `merge()` to achieve this.

### Using the `merge()` Method

```php
use Illuminate\Support\Collection;

// Define two collections
$collection1 = new Collection([1, 2, 3]);
$collection2 = new Collection([4, 5, 6]);

// Merge the two collections
$mergedCollection = $collection1->merge($collection2);

// Output the merged collection
$mergedCollection->all();
```

### Result:

```
[
    0 => 1,
    1 => 2,
    2 => 3,
    3 => 4,
    4 => 5,
    5 => 6,
]
```

### Additional Notes:

- The `merge()` method appends the elements of the second collection to the end of the first collection.
  
- If there are duplicate keys in the collections, the values of hong kong phone number the second collection will overwrite the values of the first collection for those keys.
  
- The original collections remain unchanged, and a new merged collection is returned.

### Example with Associative Arrays:



```php
// Define two collections with associative arrays
$collection1 = new Collection(['a' => 1, 'b' => 2]);
$collection2 = new Collection(['b' => 3, 'c' => 4]);

// Merge the two collections
$mergedCollection = $collection1->merge($collection2);

// Output the merged collection
$mergedCollection->all();
```

### Result:

```
[
    'a' => 1,
    'b' => 3,
    'c' => 4,
]
```

### Conclusion

Merging collections in Laravel using the `merge()` method is a straightforward way to combine the elements of two collections into a single collection. Whether you're working with simple arrays or associative arrays, Laravel provides a convenient and efficient way to merge collections and manipulate data in your application.