How can one effectively utilize PHP's built-in functions for array manipulation and search operations?

To effectively utilize PHP's built-in functions for array manipulation and search operations, one can use functions like array_push, array_pop, array_shift, array_unshift for adding or removing elements, array_slice for extracting a portion of an array, array_merge for merging arrays, in_array for searching for a specific value, array_search for finding the key of a specific value, array_key_exists for checking if a key exists in an array, and array_flip for flipping the keys and values of an array.

// Example of using array_push to add an element to an array
$fruits = ["apple", "banana", "orange"];
array_push($fruits, "kiwi");
print_r($fruits);