laravel array_merge collection How to merge Laravel objects in controller

星期三, 2017-06-14 11:12 — adminshiping1

1)使用 $collection1->merge($collection1);
见 https://docs.golaravel.com/docs/5.4/collections/

2)用 toArray() 见下面

I have a controller where I want to combine data from multiple tables with parallel structures. What I want to end up with in the end is one object I can return from the controller so I can parse it in Backbone.

I want to do something like this:

public function index()
{
    $mc = MainContact::where('verified', '=', '1')->get();
    $sm = SendMessage::where('verified', '=', '1')->get();

    $obj = (object) array_merge((array) $mc, (array) $sm);
    return $obj;
}

I'm told by another post on StackOverflow that this works in PHP 5.3+. However, this returns the following error in Laravel:

UnexpectedValueException: The Response content must be a string or object implementing
 __toString(), "object" given.

How do I implement this method in Laravel? Both $mc and sm return valid objects in Laravel.

16down vote favorite

I want to do something like this:

public function index()
{
    $mc = MainContact::where('verified', '=', '1')->get();
    $sm = SendMessage::where('verified', '=', '1')->get();

    $obj = (object) array_merge((array) $mc, (array) $sm);
    return $obj;
}

I'm told by another post on StackOverflow that this works in PHP 5.3+. However, this returns the following error in Laravel:

UnexpectedValueException: The Response content must be a string or object implementing
 __toString(), "object" given.

How do I implement this method in Laravel? Both $mc and sm return valid objects in Laravel.

16down vote favorite

I want to do something like this:

public function index()
{
    $mc = MainContact::where('verified', '=', '1')->get();
    $sm = SendMessage::where('verified', '=', '1')->get();

    $obj = (object) array_merge((array) $mc, (array) $sm);
    return $obj;
}

I'm told by another post on StackOverflow that this works in PHP 5.3+. However, this returns the following error in Laravel:

UnexpectedValueException: The Response content must be a string or object implementing
 __toString(), "object" given.

How do I implement this method in Laravel? Both $mc and sm return valid objects in Laravel.

up vote16down voteaccepted

正确答案
What you can do here is merge the arrays of the two query result and then use the Response with json output like shown below.

$array = array_merge($mc->toArray(), $sm->toArray());
return Response::json($array);

answered Jan 11 '13 at 21:00

Raftalks

1,38211324

That did the trick. Thanks, Raf. – sehummel Jan 11 '13 at 21:33

add a comment

up vote35down vote

Nowadays you can use

$new_collection = $collection->merge($other_collection).

This works in Laravel 4 and seems to handle both arrays and collections.

answered Oct 24 '13 at 13:09

trm42

1,50811114

In my scenario, it eats up some rows after the collection merge. – Ali Gajani Mar 2 '15 at 17:46

Is your collection using strings as keys? Collection::merge uses PHP's array_merge, which overwrites string keys but not integer keys. If that's a problem, you can always subclass Laravel Collection to override the implementation. – trm42 Mar 3 '15 at 8:12

In my case, only the $other_collection remains and the $collection disappears. Why??? – PathrosJun 6 '16 at 18:09

add a comment

up vote5down vote

We can use collection as below

$admins = User::where('type', '=', 'admin')->get();

$authors = User::where('type', '=', 'author')->get();

$admin_author_collection = $admins->merge($authors);

Also, Please refer the various collection methods to below link

http://laravel.com/api/4.2/Illuminate/Database/Eloquent/Collection.html

answered Oct 17 '14 at 6:39

Ramesh Kotkar

18638

add a comment

up vote2down vote

Route::get('test', function(){
    $rank = Rank::get();
    $policy = Policy::get();
    $obj = (object)array_merge_recursive((array)$rank , (array)$policy);
    var_dump($obj);
});