Eloquent get only one column as an array

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.

laravel eloquent laravel-5.2

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();

laravel eloquent laravel-5.2

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

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