What are the advantages and disadvantages of using SQL queries versus PHP functions for array manipulation in PHP?

When working with arrays in PHP, there are advantages and disadvantages to using SQL queries versus PHP functions for manipulation. SQL queries can be useful for complex data manipulation and filtering, especially when working with large datasets. However, using PHP functions for array manipulation can be more flexible and efficient for smaller arrays or simple operations.

// Example of using PHP functions for array manipulation
$array = [1, 2, 3, 4, 5];

// Adding a new element to the array
$array[] = 6;

// Removing an element from the array
unset($array[2]);

// Reversing the array
$array = array_reverse($array);

print_r($array);