What are the potential pitfalls of using timestamps as a source of randomness in PHP applications?

Using timestamps as a source of randomness in PHP applications can lead to predictable outcomes if the timestamp increments in a predictable manner. To ensure better randomness, it's recommended to combine timestamps with other sources of randomness, such as random integers or strings.

// Using microtime() along with random_int() to generate a more random value
$randomValue = microtime(true) . random_int(0, 1000);