What is the purpose of using array_rand() function in PHP?

The array_rand() function in PHP is used to randomly select one or more keys from an array. This can be useful when you need to select a random element from an array for various purposes, such as shuffling items, selecting a random winner, or displaying random content.

// Example of using array_rand() function to select a random element from an array
$colors = array("red", "blue", "green", "yellow", "orange");
$random_color = $colors[array_rand($colors)];
echo "Random color: " . $random_color;