What is the best way to ensure a float variable is always displayed with two decimal places in PHP?

When working with float variables in PHP, it is important to ensure that they are always displayed with two decimal places for consistency and accuracy in financial calculations or any other scenario where precision is required. One way to achieve this is by using the number_format() function in PHP, which allows you to format a number with a specific number of decimal places. By using number_format() with 2 decimal places, you can ensure that your float variable is always displayed with the desired precision.

$floatVar = 123.456; // Example float variable
$formattedFloat = number_format($floatVar, 2); // Format float variable with 2 decimal places
echo $formattedFloat; // Output: 123.46