Are there any specific PHP coding conventions or best practices to follow when working with decimal numbers?

When working with decimal numbers in PHP, it is important to use the appropriate data type to ensure precision and accuracy. One recommended approach is to use the `number_format()` function to format decimal numbers with a specific number of decimal places. This helps avoid rounding errors and inconsistencies when performing calculations with decimal numbers.

$number = 123.456789;
$decimal_places = 2;
$formatted_number = number_format($number, $decimal_places);
echo $formatted_number; // Output: 123.46