<?php/* SVN FILE: $Id: number.php 6311 2008-01-02 06:33:52Z phpnut $ *//** * Number Helper. * * Methods to make numbers more readable. * * PHP versions 4 and 5 * * CakePHP(tm) :  Rapid Development Framework <http://www.cakephp.org/> * Copyright 2005-2008, Cake Software Foundation, Inc. *								1785 E. Sahara Avenue, Suite 490-204 *								Las Vegas, Nevada 89104 * * Licensed under The MIT License * Redistributions of files must retain the above copyright notice. * * @filesource * @copyright		Copyright 2005-2008, Cake Software Foundation, Inc. * @link				http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project * @package			cake * @subpackage		cake.cake.libs.view.helpers * @since			CakePHP(tm) v 0.10.0.1076 * @version			$Revision: 6311 $ * @modifiedby		$LastChangedBy: phpnut $ * @lastmodified	$Date: 2008-01-01 22:33:52 -0800 (Tue, 01 Jan 2008) $ * @license			http://www.opensource.org/licenses/mit-license.php The MIT License *//** * Number helper library. * * Methods to make numbers more readable. * * @package 	cake * @subpackage	cake.cake.libs.view.helpers */class NumberHelper extends AppHelper {/** * Formats a number with a level of precision. * * @param  float	$number	A floating point number. * @param  integer $precision The precision of the returned number. * @return float Enter description here... * @static */	function precision($number, $precision = 3) {		return sprintf("%01.{$precision}f", $number);	}/** * Returns a formatted-for-humans file size. * * @param integer $length Size in bytes * @return string Human readable size * @static */	function toReadableSize($size) {		switch($size) {			case 0:				return '0 Bytes';			case 1:				return '1 Byte';			case $size < 1024:				return $size . ' Bytes';			case $size < 1024 * 1024:				return $this->precision($size / 1024, 0) . ' KB';			case $size < 1024 * 1024 * 1024:				return $this->precision($size / 1024 / 1024, 2) . ' MB';			case $size < 1024 * 1024 * 1024 * 1024:				return $this->precision($size / 1024 / 1024 / 1024, 2) . ' GB';			case $size < 1024 * 1024 * 1024 * 1024 * 1024:				return $this->precision($size / 1024 / 1024 / 1024 / 1024, 2) . ' TB';		}	}/** * Formats a number into a percentage string. * * @param float $number A floating point number * @param integer $precision The precision of the returned number * @return string Percentage string * @static */	function toPercentage($number, $precision = 2) {		return $this->precision($number, $precision) . '%';	}/** * Formats a number into a currency format. * * @param float $number A floating point number * @param integer $options if int then places, if string then before, if (,.-) then use it * 							or array with places and before keys * @return string formatted number * @static */	function format($number, $options = false) {		$places = 0;		if (is_int($options)) {			$places = $options;		}		$separators = array(',', '.', '-', ':');		$before = $after = null;		if (is_string($options) && !in_array($options, $separators)) {			$before = $options;		}		$thousands = ',';		if (!is_array($options) && in_array($options, $separators)) {			$thousands = $options;		}		$decimals = '.';		if (!is_array($options) && in_array($options, $separators)) {			$decimals = $options;		}		$escape = true;		if (is_array($options)) {			$options = array_merge(array('before'=>'$', 'places' => 2, 'thousands' => ',', 'decimals' => '.'), $options);			extract($options);		}		$out = $before . number_format($number, $places, $decimals, $thousands) . $after;		if ($escape) {			return h($out);		}		return $out;	}/** * Formats a number into a currency format. * * @param float $number * @param string $currency Shortcut to default options. Valid values are 'USD', 'EUR', 'GBP', otherwise set at least 'before' and 'after' options. * @param array $options * @return string Number formatted as a currency. */	function currency($number, $currency = 'USD', $options = array()) {		$default = array('before'=>'', 'after' => '', 'zero' => '0', 'places' => 2, 'thousands' => ',', 'decimals' => '.','negative' => '()', 'escape' => true);		$currencies = array('USD' => array('before'=>'$', 'after' => 'c', 'zero' => 0,										'places' => 2, 'thousands' => ',', 'decimals' => '.',										'negative' => '()', 'escape' => true										),						'GBP' => array('before'=>'&#163;', 'after' => 'p', 'zero' => 0,										'places' => 2, 'thousands' => ',', 'decimals' => '.',										'negative' => '()','escape' => false										),						'EUR' => array('before'=>'&#8364;', 'after' => 'c', 'zero' => 0,										'places' => 2, 'thousands' => '.', 'decimals' => ',',										'negative' => '()', 'escape' => false										)					);		if (isset($currencies[$currency])) {			$default = $currencies[$currency];		} elseif (is_string($currency)) {			$options['before'] = $currency;		}		$options = array_merge($default, $options);		$result = null;		if ($number == 0 ) {			if ($options['zero'] !== 0 ) {				return $options['zero'];			}			$options['after'] = null;		} elseif ($number < 1 && $number > -1 ) {			$multiply = intval('1' . str_pad('', $options['places'], '0'));			$number = $number * $multiply;			$options['before'] = null;			$options['places'] = null;		} else {			$options['after'] = null;		}		$abs = abs($number);		$result = $this->format($abs, $options);		if ($number < 0 ) {			if($options['negative'] == '()') {				$result = '(' . $result .')';			} else {				$result = $options['negative'] . $result;			}		}		return $result;	}}?>