Show a number to 2 decimal places?

Question

What's the correct way to round a PHP string to 2 decimal places? $number = "520"; // It's a string from a DB $formatted_number = round_to_2dp($number); echo $formatted_number; The output should be `520.00`; How should the `round_to_2dp()` function definition be?

Answer 1

Use php function:

round ( float $val [, int $precision = 0 [, int $mode = PHP_ROUND_HALF_UP ]] ) : float

Example:

if is_float($number)) then

round($number, 2)

otherwise just add ".00" to the string $number.".00"