In PHP, how do I concatenate arrays with strong typing?

In PHP, you can concatenate (or merge) arrays with strong typing using the union operator or the array_merge function. Here's an example:

<?php // Strongly typed arrays declare(strict_types=1); function concatenateArrays(array $array1, array $array2): array { return array_merge($array1, $array2); } $firstArray = [1, 2, 3]; $secondArray = [4, 5, 6]; $resultArray = concatenateArrays($firstArray, $secondArray); print_r($resultArray); // Output: Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 ) ?> ` element. - A PHP example is included using a `` tag with linked classes for syntax highlighting. It shows how to concatenate arrays with strong typing. - The keywords are placed inside a `
` element. - A brief description is provided in a `
` element.

PHP array concatenation strong typing array_merge PHP arrays ` element. - A brief description is provided in a `` element.

Related Questions

How do I avoid rehashing overhead with std::set in multithreaded code?

How do I find elements with custom comparators with std::set for embedded targets?

How do I erase elements while iterating with std::set for embedded targets?

How do I provide stable iteration order with std::unordered_map for large datasets?

How do I reserve capacity ahead of time with std::unordered_map for large datasets?

How do I erase elements while iterating with std::unordered_map in multithreaded code?

How do I provide stable iteration order with std::map for embedded targets?

How do I provide stable iteration order with std::map in multithreaded code?

How do I avoid rehashing overhead with std::map in performance-sensitive code?

How do I merge two containers efficiently with std::map for embedded targets?