precision (mixed $number, int $precision = 3)

This method displays a number with the specified amount of precision (decimal places). It will round in order to maintain the level of precision defined.

<?php echo $number->precision(456.91873645, 2 ); ?>
 
//Outputs: 
456.92

1. <?php echo $number->precision(456.91873645, 2 ); ?>
3. //Outputs:
4. 456.92