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<?php
/**
 * A class of utilities for dealing with numbers.
 */

namespace Automattic\WooCommerce\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 WooCommerce 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 );
	}
}

Nama File / Folder	Size	Action
.htaccess	0.231KB	Edit File Delete File Rename
ArrayUtil.php	2.228KB	Edit File Delete File Rename
NumberUtil.php	1.148KB	Edit File Delete File Rename
StringUtil.php	1.683KB	Edit File Delete File Rename