Are there any best practices for efficiently merging arrays in PHP without using loops?

When merging arrays in PHP without using loops, one efficient way is to use the `array_merge` function. This function takes multiple arrays as arguments and combines them into a single array, with later arrays overwriting the values of previous arrays in case of duplicate keys. This can be a quick and concise way to merge arrays without the need for loops. 

$array1 = ['a', 'b', 'c'];
$array2 = ['d', 'e', 'f'];
$array3 = ['g', 'h', 'i'];

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

print_r($mergedArray);

Keywords

array_merge array_merge_recursive array_replace SPL performance

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