How to select multiple columns with pluck() from selection in laravel - php

Question

The probleme is that when dd($responsablle or $type) its shows only first_name
i need to select first_name and id
public function create(){
$responsable = User::all()->pluck('first_name','id');
$type = EventType::all()->pluck('type','id');
return view ('backend.event.create', compact('responsable', 'type'));
}

Answer 1

First use pluck on the Builder instead of retrieving all the records with all their fields then plucking the fields from the Collection:
$responsable = User::pluck('first_name', 'id');
$type = EventType::pluck('type', 'id');
The second arguement is the field you want to key the Collection/array by. The id part is the key of the element:
foreach ($responsable as $key => $value) {
// $key is the 'id' field
// $value is the 'first_name'
}
foreach ($type as $key => $value) {
// $key is the 'id' field
// $value is the 'type'
}
Or to be more useful with the naming:
foreach ($responsable as $id => $first_name) { ... }
foreach ($type as $id => $type) { ... }
Laravel 5.8 Docs - Query Builder - Retrieving Results - Retrieving A List Of Column Values pluck
Laravel 5.8 Docs - Collections - Available Methods - pluck pluck

Answer 2

To be honest, you don't actually have to use pluck() here. If you simply limit the columns being returned via ->select(), you will receive records with their attributes limited to the columns specified:
$users = User::select('first_name', 'id')->get();
$types = EventType::select('type', 'id')->get();
Now, when looping over these, you'll have access to first_name, id and type, id:
foreach($users AS $user){
echo $user->id."|".$user->first_name;
}
foreach($types AS $type){
echo $type->type."|".$type->id;
}
Note, this does return the full Model for User and EventType, but casting to an array will condense that to just an associative array for each record:
$users = User::select('first_name', 'id')->get()->toArray();
dd($users);
/* array:2 [▼
0 => array:2 [▼
"first_name" => "Bob"
"id" => "1"
]
1 => array:2 [▼
"first_name" => "Mike"
"id" => "2"
]
] */
$types = EventType::select('type', 'id')->get()->toArray();
dd($types);
/* array:2 [▼
0 => array:2 [▼
"type" => "Red"
"id" => "1"
]
1 => array:2 [▼
"type" => "Blue"
"id" => "2"
]
] */
Then, when looping, you can access similarly:
foreach($users AS $user){
echo $user["id"]."|".$user["first_name"];
}
// Or, $users[0]["first_name"], etc.
foreach($types AS $type){
echo $type["type"]."|".$type["id"];
}
// Or, $types[0]["type"], etc.