What are some best practices for rounding numbers in PHP?

When rounding numbers in PHP, it's important to consider the precision needed and the rounding method to use. The round() function is commonly used for basic rounding, but there are also functions like ceil() and floor() for rounding up or down. It's best practice to specify the precision parameter when using these functions to avoid unexpected results.

// Round a number to 2 decimal places using round()
$number = 10.56789;
$roundedNumber = round($number, 2);
echo $roundedNumber; // Output: 10.57