Hello Laravel developers! In Laravel 10, the Collection class provides a powerful method called pluck(). This method allows you to extract specific values from a collection based on a given key. Let's explore how pluck() works and see some examples!
pluck() Method:
The pluck() method retrieves all the values of a specified key from a collection. It returns a new collection containing only those values. Here's an example:
$users = collect([
['name' => 'John', 'age' => 25],
['name' => 'Jane', 'age' => 30],
['name' => 'Alice', 'age' => 35],
]);
$names = $users->pluck('name');
// Output: ['John', 'Jane', 'Alice']
In the above example, we have a collection of users. We use the pluck() method to extract the values of the 'name' key from each item in the collection. The resulting collection, $names, contains only the names of the users.
Additional Example:
Here's another example demonstrating the use of pluck() with nested array structures:
$books = collect([
[
'title' => 'The Great Gatsby',
'author' => [
'name' => 'F. Scott Fitzgerald',
'birth_year' => 1896,
],
],
[
'title' => 'To Kill a Mockingbird',
'author' => [
'name' => 'Harper Lee',
'birth_year' => 1926,
],
],
[
'title' => 'Pride and Prejudice',
'author' => [
'name' => 'Jane Austen',
'birth_year' => 1775,
],
],
]);
$authorNames = $books->pluck('author.name');
// Output: ['F. Scott Fitzgerald', 'Harper Lee', 'Jane Austen']
In this example, we have a collection of books, where each book has an 'author' array containing the author's name. We use pluck() to extract the author names from each book in the collection, resulting in a new collection, $authorNames, containing the names of the authors.
The pluck() method is a handy way to extract values from a collection based on a specific key. It simplifies data extraction and allows you to work with subsets of data from your collections.
That's it for today's Laravel tip!