How can PHP developers effectively communicate and guide others towards optimizing their code, as demonstrated in the interactions between forum users in the thread?

Issue: In the forum thread, users are discussing ways to optimize PHP code for better performance. One user suggests using built-in functions like array_map() instead of loops for iterating over arrays, as it can lead to cleaner and more efficient code. Code snippet:

// Original code using a loop to iterate over an array
$numbers = [1, 2, 3, 4, 5];
foreach ($numbers as $number) {
    echo $number * 2 . "\n";
}

// Optimized code using array_map() function
$numbers = [1, 2, 3, 4, 5];
$multiplied_numbers = array_map(function($number) {
    return $number * 2;
}, $numbers);
echo implode("\n", $multiplied_numbers);