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

In PHP, you can merge arrays while ensuring strong typing by using the array union operator (+) or the array_merge function, but be aware that PHP is loosely typed, so strong typing is primarily focused on how you handle types in your application logic.

PHP, merge arrays, strong typing, array union, array_merge
This example demonstrates how to merge arrays in PHP with attention to type safety.
<?php $array1 = [1, 2, 3, 'a' => 'apple']; $array2 = [4, 5, 6, 'a' => 'banana']; // Merging arrays using array_merge $mergedArray = array_merge($array1, $array2); // Output: [1, 2, 3, 'a' => 'banana', 4, 5, 6] // Merging arrays using union operator $unionArray = $array1 + $array2; // Output: [1, 2, 3, 'a' => 'apple'] ?>

PHP merge arrays strong typing array union array_merge

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