What are some potential pitfalls when storing decimal numbers in PHP sessions?

Storing decimal numbers in PHP sessions can lead to precision loss due to the way floating-point numbers are represented in computers. To avoid this issue, it is recommended to store decimal numbers as strings in PHP sessions. This way, the precision of the numbers will be maintained without any loss.

// Storing decimal numbers as strings in PHP sessions
$_SESSION['decimal_number'] = "10.5";