Laravel 4 - Get Array of Attributes from Collection

Question

I have a collection of objects. Let\'s say the objects are tags:

$tags = Tag::all();

I want to retrieve a certain attribute for each tag, say i

Answer 1

Yep, you can do it nice and easily. As the Laravel 4 Documentation states, you can do

Retrieving All Rows From A Table

$users = DB::table('users')->get();

foreach ($users as $user)
{
var_dump($user->name);
}

Retrieving A Single Row From A Table

$user = DB::table('users')->where('name', 'John')->first();

var_dump($user->name);

Retrieving A Single Column From A Row

$name = DB::table('users')->where('name', 'John')->pluck('name');

Retrieving A List Of Column Values

$roles = DB::table('roles')->lists('title');

This method will return an array of role titles. You may also specify a custom key column for the returned array:

$roles = DB::table('roles')->lists('title', 'name');

Specifying A Select Clause

$users = DB::table('users')->select('name', 'email')->get();

$users = DB::table('users')->distinct()->get();

$users = DB::table('users')->select('name as user_name')->get();

EDIT:

The above examples show how to access data with the help of Laravel's fluent query builder. If you are using models you can access the data with Laravel's Eloquent ORM

Because Eloquent is internaly using the query builder, you can without any problem do the following things:

$tag_names = $tags->lists('tag_name_label', 'tag_name_column')->get();

which could be also done with:

$tag_names = DB::table('tags')->lists('tag_name_label', 'tag_name_column')->get();