What are some common pitfalls when working with random variables in PHP?

One common pitfall when working with random variables in PHP is not properly seeding the random number generator, which can lead to predictable or non-random results. To solve this, you should always seed the generator using a unique value, such as the current timestamp, before generating random numbers.

// Properly seed the random number generator
mt_srand(time());

// Generate a random number between 1 and 10
$randomNumber = mt_rand(1, 10);

echo $randomNumber;