Are there any best practices to follow when merging multiple result arrays in PHP?

When merging multiple result arrays in PHP, it is important to ensure that the keys are preserved and duplicates are handled properly. One common approach is to use the array_merge function, which merges the arrays while preserving keys and overwriting values if duplicates are encountered.

// Example of merging multiple result arrays in PHP
$array1 = ['a' => 1, 'b' => 2];
$array2 = ['b' => 3, 'c' => 4];
$array3 = ['d' => 5];

$mergedArray = array_merge($array1, $array2, $array3);

print_r($mergedArray);