Laravel Array Helpers

by Mr. IT-man 26 March 2023 15

I found a very good article when browsing the laravel news blog that talks about Laravel Array...

I found a very good article when browsing the laravel news blog that talks about Laravel Array Helpers, which every developer should know. I know about them, but it's great to share them with you because I know the importance of this Array

Array Join

use Illuminate\Support\Arr;

$stack = ['Tailwind', 'Alpine', 'Laravel', 'Livewire'];

Arr::join($stack, ', ');
// Tailwind, Alpine, Laravel, Livewire

implode($stack, ', ');
// Tailwind, Alpine, Laravel, Livewire

$stack_2 = ['Tailwind', 'Alpine', 'Laravel', 'Livewire'];

Arr::join($stack_2, ', ', ', and');
// Tailwind, Alpine, Laravel, and Livewire

Keyed Array data

 $array = [
 ['product_id' => 'prod-100', 'name' => 'Desk'],
 ['product_id' => 'prod-200', 'name' => 'Chair'],
];

$keyed = [];

foreach ($array as $value) {
 $keyed[$value['product_id']] = $value;
}

/*
 [
 'prod-100' => ['product_id' => 'prod-100', 'name' => 'Desk'],
 'prod-200' => ['product_id' => 'prod-200', 'name' => 'Chair'],
 ]
*/

// Using the Arr::keyBy() method, you can do the same thing with one line of code

$keyed = Arr::keyBy($array, 'product_id');

Checking and Getting Data from an Array

use Illuminate\Support\Arr;

$data = [
 'products' => [
 'desk' => [
 'name' => 'Oakendesk'
 'price' => 599.00,
 'description' => 'Solid oak desk built from scratch.'
 ],
 ],
];

// 599.00
Arr::get($data, 'products.desk.price');

// Returns false
Arr::has($data, 'products.desk.discount');

// Returns null
Arr::get($data, 'products.desk.discount');

// Returns custom default value if not found.
Arr::get($data, 'products.desk.discount', ['type' => 'percent', 'value' => 10]);

Getting the first or last element in an array

// end()
$array = [100, 200, 300, 110];
end($array);

// If your array is empty, though, you will get false instead
$array = [];
end($array); // false

// Using Laravel's last() helper, you have multiple options when an array is empty
use Illuminate\Support\Arr;

$array = [];

Arr::last($array); // null

// Provide a default
Arr::last($array, null, 100); // 100

// Using Laravel's helper also enables you to pass a closure as a second argument as the condition for which element to return first or last respectively
$array = [100, 200, 300, 110];

Arr::last($array, fn ($e) => $e > 110); // 300
Arr::first($array, fn ($e) => $e > 110); // 200

Plucking Data from an Array

$array = [
 ['user' => ['id' => 1, 'name' => 'User 1', 'email' => 'user1@example.com']],
 ['user' => ['id' => 2, 'name' => 'User 2', 'email' => 'user2@example.com']],
];

$emails = [];

foreach ($array as $result) {
 $emails[] = $result['user']['email'];
}

/*
[
 "user1@example.com",
 "user2@example.com",
]
*/

// Laravel's Arr::pluck() helper makes this trivial
Arr::pluck($array, 'user.email');

I gave you, in short, what was mentioned in the platform, but you must visit the article

and go deeper and deeper to take full advantage.