CODEWITHSUNDEEP
laravel-5
user2197774
user2197774

Reputation: 501

Merging Two Laravel Collections keeping the original keys

I have the following two collections:

Collection {#402 ▼
  #items: array:1 [▼
    4007 => "4007 - Container Deposit - 18.00 Drum - In Stock: 0.00"
  ]
}

Collection {#398 ▼
  #items: array:3 [▼
    1000 => "1000 - Acetone - 162.00 KG - In Stock: 10000.00"
    1001 => "1001 - Acetone - 15.80 KG - In Stock: 0.00"
    24662 => "24662 - 1L Untd Antifreeze Orange FO2272A60(Prem - 1.00 Litre - In Stock: 0.00"
  ]
}

Using Laravel's collection merge function:

$merged = $ref_prod_containers->merge($ref_cust_prod);
dd($merged);

I get the following:

Collection {#397 ▼
  #items: array:4 [▼
    0 => "4007 - Container Deposit - 18.00 Drum - In Stock: 0.00"
    1 => "1000 - Acetone - 162.00 KG - In Stock: 10000.00"
    2 => "1001 - Acetone - 15.80 KG - In Stock: 0.00"
    3 => "24662 - 1L Untd Antifreeze Orange FO2272A60(Prem - 1.00 Litre - In Stock: 0.00"
  ]
}

However I wish to retain the original keys. The merge function is removing them and replacing with 0,1,2,3.

Thanks, Julian

Upvotes: 14

Views: 28616

Answers (2)

RB_
RB_

Reputation: 799

You can use Laravel Collection's union() method. Beware that this behaves differently from merge() when dealing with duplicate keys: if the same key is present in both $array1 and $array2 and you go $merged = $array1->union($array2), then the value of $array1 will end up in the $merged collection, and the value of $array2 will be discarded (Laravel union documentation).

Upvotes: 35

dparoli
dparoli

Reputation: 9161

I would try to use string keys for the merging and merged collection. From the laravel docs section collections, function merge()

If the given array's keys are numeric, the values will be appended to the end of the collection:

Upvotes: 0

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