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<?php /** * A class of utilities for dealing with numbers. / namespace Automattic\Kkart\Utilities; /* * A class of utilities for dealing with numbers. / final class NumberUtil { /* * Round a number using the built-in `round` function, but unless the value to round is numeric * (a number or a string that can be parsed as a number), apply 'floatval' first to it * (so it will convert it to 0 in most cases). * * This is needed because in PHP 7 applying `round` to a non-numeric value returns 0, * but in PHP 8 it throws an error. Specifically, in Kkart we have a few places where * round('') is often executed. * * @param mixed $val The value to round. * @param int $precision The optional number of decimal digits to round to. * @param int $mode A constant to specify the mode in which rounding occurs. * * @return float The value rounded to the given precision as a float, or the supplied default value. */ public static function round( $val, int $precision = 0, int $mode = PHP_ROUND_HALF_UP ) : float { if ( ! is_numeric( $val ) ) { $val = floatval( $val ); } return round( $val, $precision, $mode ); } }