What is the difference between array_rand() and mt_rand() functions in PHP for selecting random values from an array?

The main difference between array_rand() and mt_rand() functions in PHP for selecting random values from an array is that array_rand() is specifically designed for selecting random keys from an array, while mt_rand() is a general purpose random number generator function. Therefore, if you want to select a random value from an array, you should use array_rand().

// Using array_rand() to select a random value from an array
$array = [1, 2, 3, 4, 5];
$randomKey = array_rand($array);
$randomValue = $array[$randomKey];
echo $randomValue;