In PHP, how do I concatenate arrays in a memory-efficient way?

In PHP, concatenating arrays can be done in a memory-efficient way using the array_merge() function or the array union operator (+). Here's how you can do it:

Keywords: PHP, concatenate arrays, memory-efficient, array_merge, array union
Description: This guide demonstrates how to concatenate arrays in PHP efficiently to optimize memory usage.
<?php // Example of concatenating arrays using array_merge $array1 = [1, 2, 3]; $array2 = [4, 5, 6]; $mergedArray = array_merge($array1, $array2); print_r($mergedArray); // Example of concatenating arrays using the array union operator $array3 = [1, 2, 3]; $array4 = [3, 4, 5]; $unionArray = $array3 + $array4; // Note: This will not include duplicate values print_r($unionArray); ?>

Keywords: PHP concatenate arrays memory-efficient array_merge array union

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