Eloquent get only one column as an array

问题

How to get only one column as one dimentional array in laravel 5.2 using eloquent?

I have tried:

$array = Word_relation::select('word_two')->where('word_one', $word_id)->get()->toArray();

but this one gives it as 2 dimentional array like:

array(2) {
      [0]=>
      array(1) {
        ["word_one"]=>
        int(2)
      }
      [1]=>
      array(1) {
        ["word_one"]=>
        int(3)
      }
    }

but I want to get it as:

array(2) {
    [0]=>2
    [1]=>3
}

回答1:

You can use the pluck method:

Word_relation::where('word_one', $word_id)->pluck('word_two')->toArray();

For more info on what methods are available for using with collection, you can you can check out the Laravel Documentation.

回答2:

If you receive multiple entries the correct method is called lists.

    Word_relation::select('word_two')->where('word_one', $word_id)->lists('word_one')->toArray();

回答3:

I came across this question and thought I would clarify that the lists() method of a eloquent builder object was depreciated in Laravel 5.2 and replaced with pluck().

// <= Laravel 5.1
Word_relation::where('word_one', $word_id)->lists('word_one')->toArray();
// >= Laravel 5.2
Word_relation::where('word_one', $word_id)->pluck('word_one')->toArray();

These methods can also be called on a Collection for example

// <= Laravel 5.1
  $collection = Word_relation::where('word_one', $word_id)->get();
  $array = $collection->lists('word_one');

// >= Laravel 5.2
  $collection = Word_relation::where('word_one', $word_id)->get();
  $array = $collection->pluck('word_one');

回答4:

That can be done in short as:

Model::pluck('column')

where model is the Model such as User model & column as column name like id

if you do

User::pluck('id') // [1,2,3, ...]

& of course you can have any other clauses like where clause before pluck

回答5:

I think you can achieve it by using the below code

Model::get(['ColumnName'])->toArray();

来源：https://stackoverflow.com/questions/34912265/eloquent-get-only-one-column-as-an-array

标签

laravel

eloquent

laravel-5.2