How can the array functions in PHP be utilized to solve the issue of extracting array names?

To extract array names in PHP, we can utilize array functions such as array_keys() or array_map(). These functions allow us to extract the keys (names) of an array and store them in a new array or perform operations on them.

// Sample array
$array = ['name' => 'John', 'age' => 30, 'city' => 'New York'];

// Using array_keys() function to extract array names
$arrayNames = array_keys($array);

// Output the array names
print_r($arrayNames);