How can PHP functions like var_dump and array_combine be used for efficient data processing and formatting?

When working with data in PHP, functions like var_dump can be used to quickly inspect the structure and contents of variables, arrays, and objects. This can help in debugging and understanding the data being processed. Additionally, functions like array_combine can be used to efficiently merge two arrays into a single associative array, which can be useful for formatting and organizing data in a desired way.

// Using var_dump to inspect the contents of a variable
$data = [1, 2, 3, 4];
var_dump($data);

// Using array_combine to merge two arrays into an associative array
$keys = ['a', 'b', 'c'];
$values = [1, 2, 3];
$combined = array_combine($keys, $values);
print_r($combined);