Laravel collection contains - php

Question

I'm using the Laravel contains method on a collection https://laravel.com/docs/5.3/collections#method-contains. But it does not work for me.
foreach ($this->options as $option) {
if($options->contains($option->id)) {
dd('test');
}
}
dd($options); looks like this:
Collection {#390
#items: array:1 [
0 => array:3 [
0 => array:7 [
"id" => 10
"slug" => "test"
"name" => "test"
"poll_id" => 4
"created_at" => "2016-11-12 20:42:42"
"updated_at" => "2016-11-12 20:42:42"
"votes" => []
]
1 => array:7 [
"id" => 11
"slug" => "test-1"
"name" => "test"
"poll_id" => 4
"created_at" => "2016-11-12 20:42:42"
"updated_at" => "2016-11-12 20:42:42"
"votes" => []
]
2 => array:7 [
"id" => 12
"slug" => "test-2"
"name" => "test"
"poll_id" => 4
"created_at" => "2016-11-12 20:42:42"
"updated_at" => "2016-11-12 20:42:42"
"votes" => []
]
]
]
}
Result of dd($option->id); is 10.
What could be wrong? Or is there a better way?

Answer 1

You should pass a key / value pair to the contains method, which will
determine if the given pair exists in the collection. Use contains() method in this way:
foreach ($this->options as $option) {
// Pass key inside contains method
if($option->contains('id', $option->id)) {
dd('test');
}
}

Answer 2

Use the following, which tells Laravel you want to match the 'id':
$options->contains('id', $option->id);
Docs

Answer 3

foreach ($this->options as $option) {
if(!$options->flatten(1)->where('id',$option->id)->isEmpty()) {
dd('test');
}
}

Answer 4

The contains method determines whether the collection contains a given item.
There are basically three ways in which it can be used :
simply checking the item
$collection = collect(['name' => 'Sarah', 'age' => 23]);
$collection->contains('Desk');
// false
$collection->contains('Sarah');
// true
checking the key/value pair :
$collection = collect([
['name' => 'Sarah', 'age' => 23],
['name' => 'Vicky', 'age' => 34],
]);
$collection->contains('name', 'Hank');
// false
checking via callback function :
$collection = collect([3, 5, 7, 9, 11]);
$collection->contains(function ($value, $key) {
return $value < 2;
});
// false
Now, for your problem, we will use the second category, i.e :
foreach ($this->options as $option) {
// here id is key and $option->id is value
if($option->contains('id', $option->id)) {
dd('test');
}
}
Link to docs