How can PHP developers efficiently manage and manipulate multiple variables within an array structure to streamline code execution?

When working with multiple variables within an array structure in PHP, developers can efficiently manage and manipulate them by using array functions such as foreach, array_map, array_filter, and array_reduce. These functions allow for streamlined code execution by iterating through the array elements and performing operations on them without the need for manual looping.

// Example: Using array_map to manipulate multiple variables within an array

$numbers = [1, 2, 3, 4, 5];

// Multiply each number by 2
$multipliedNumbers = array_map(function($num) {
    return $num * 2;
}, $numbers);

print_r($multipliedNumbers);