In PHP, how do I merge arrays in a high-traffic application?

In a high-traffic PHP application, it's crucial to efficiently merge arrays to enhance performance. PHP offers several methods to merge arrays, each with its own use cases. Here are a few commonly used techniques:

'apple', 'b' => 'banana']; $array4 = ['b' => 'orange', 'c' => 'mango']; $mergedArrayWithKeys = $array3 + $array4; print_r($mergedArrayWithKeys); ?>

PHP array merging high-traffic application performance optimization

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