What are potential pitfalls when using array_rand() in a MySQL query in PHP?

When using array_rand() in a MySQL query in PHP, a potential pitfall is that the random selection may not be truly random and could lead to biased results. To solve this issue, you can shuffle the array before using array_rand() to ensure a more random selection.

// Shuffle the array before using array_rand()
shuffle($array);
$randomElement = array_rand($array);