Popular Array Functions: Open-Source Examples

Arrays in PHP are used very widely. There are many functions for working with arrays. Let's check some of them and how they are used in Laravel open-source projects.

Example 1. is_array() and count()

One of the functions used often is checking if a variable is an array. In this example from Filament, first, it is checked if $state is an array, and if it is, then counts all elements in an array.

public function getItemsCount(): int
{
    $state = $this->getState();
 
    return is_array($state) ? count($state) : 0;
}

Link to the example in GitHub repository.

Example 2. array_merge() and array_filter()

A common situation is to merge arrays into one. Another situation is to...