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Backup of current cakephp version
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Brm Ko
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299
lib/Cake/Utility/CakeNumber.php
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299
lib/Cake/Utility/CakeNumber.php
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<?php
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/**
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* CakeNumber Utility.
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*
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* Methods to make numbers more readable.
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*
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* PHP 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package Cake.Utility
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* @since CakePHP(tm) v 0.10.0.1076
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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/**
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* Number helper library.
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*
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* Methods to make numbers more readable.
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*
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* @package Cake.Utility
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* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/number.html
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*/
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class CakeNumber {
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/**
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* Currencies supported by the helper. You can add additional currency formats
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* with CakeNumber::addFormat
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*
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* @var array
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*/
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protected static $_currencies = array(
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'USD' => array(
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'wholeSymbol' => '$', 'wholePosition' => 'before', 'fractionSymbol' => 'c', 'fractionPosition' => 'after',
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'zero' => 0, 'places' => 2, 'thousands' => ',', 'decimals' => '.', 'negative' => '()', 'escape' => true
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),
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'GBP' => array(
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'wholeSymbol' => '£', 'wholePosition' => 'before', 'fractionSymbol' => 'p', 'fractionPosition' => 'after',
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'zero' => 0, 'places' => 2, 'thousands' => ',', 'decimals' => '.', 'negative' => '()','escape' => false
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),
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'EUR' => array(
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'wholeSymbol' => '€', 'wholePosition' => 'before', 'fractionSymbol' => false, 'fractionPosition' => 'after',
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'zero' => 0, 'places' => 2, 'thousands' => '.', 'decimals' => ',', 'negative' => '()', 'escape' => false
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)
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);
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/**
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* Default options for currency formats
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*
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* @var array
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*/
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protected static $_currencyDefaults = array(
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'wholeSymbol' => '', 'wholePosition' => 'before', 'fractionSymbol' => '', 'fractionPosition' => 'after',
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'zero' => '0', 'places' => 2, 'thousands' => ',', 'decimals' => '.','negative' => '()', 'escape' => true,
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);
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/**
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* If native number_format() should be used. If >= PHP5.4
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*
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* @var boolean
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*/
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protected static $_numberFormatSupport = null;
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/**
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* Formats a number with a level of precision.
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*
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* @param float $number A floating point number.
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* @param integer $precision The precision of the returned number.
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* @return float Formatted float.
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* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/number.html#NumberHelper::precision
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*/
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public static function precision($number, $precision = 3) {
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return sprintf("%01.{$precision}F", $number);
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}
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/**
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* Returns a formatted-for-humans file size.
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*
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* @param integer $size Size in bytes
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* @return string Human readable size
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* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/number.html#NumberHelper::toReadableSize
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*/
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public static function toReadableSize($size) {
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switch (true) {
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case $size < 1024:
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return __dn('cake', '%d Byte', '%d Bytes', $size, $size);
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case round($size / 1024) < 1024:
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return __d('cake', '%d KB', self::precision($size / 1024, 0));
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case round($size / 1024 / 1024, 2) < 1024:
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return __d('cake', '%.2f MB', self::precision($size / 1024 / 1024, 2));
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case round($size / 1024 / 1024 / 1024, 2) < 1024:
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return __d('cake', '%.2f GB', self::precision($size / 1024 / 1024 / 1024, 2));
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default:
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return __d('cake', '%.2f TB', self::precision($size / 1024 / 1024 / 1024 / 1024, 2));
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}
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}
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/**
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* Formats a number into a percentage string.
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*
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* @param float $number A floating point number
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* @param integer $precision The precision of the returned number
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* @return string Percentage string
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* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/number.html#NumberHelper::toPercentage
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*/
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public static function toPercentage($number, $precision = 2) {
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return self::precision($number, $precision) . '%';
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}
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/**
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* Formats a number into a currency format.
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*
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* @param float $number A floating point number
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* @param integer $options if int then places, if string then before, if (,.-) then use it
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* or array with places and before keys
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* @return string formatted number
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* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/number.html#NumberHelper::format
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*/
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public static function format($number, $options = false) {
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$places = 0;
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if (is_int($options)) {
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$places = $options;
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}
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$separators = array(',', '.', '-', ':');
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$before = $after = null;
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if (is_string($options) && !in_array($options, $separators)) {
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$before = $options;
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}
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$thousands = ',';
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if (!is_array($options) && in_array($options, $separators)) {
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$thousands = $options;
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}
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$decimals = '.';
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if (!is_array($options) && in_array($options, $separators)) {
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$decimals = $options;
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}
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$escape = true;
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if (is_array($options)) {
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$options = array_merge(array('before' => '$', 'places' => 2, 'thousands' => ',', 'decimals' => '.'), $options);
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extract($options);
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}
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$out = $before . self::_numberFormat($number, $places, $decimals, $thousands) . $after;
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if ($escape) {
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return h($out);
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}
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return $out;
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}
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/**
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* Alternative number_format() to accommodate multibyte decimals and thousands < PHP 5.4
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*
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* @param float $number
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* @param integer $places
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* @param string $decimals
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* @param string $thousands
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* @return string
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*/
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protected static function _numberFormat($number, $places = 0, $decimals = '.', $thousands = ',') {
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if (!isset(self::$_numberFormatSupport)) {
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self::$_numberFormatSupport = version_compare(PHP_VERSION, '5.4.0', '>=');
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}
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if (self::$_numberFormatSupport) {
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return number_format($number, $places, $decimals, $thousands);
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}
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$number = number_format($number, $places, '.', '');
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$after = '';
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$foundDecimal = strpos($number, '.');
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if ($foundDecimal !== false) {
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$after = substr($number, $foundDecimal);
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$number = substr($number, 0, $foundDecimal);
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}
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while (($foundThousand = preg_replace('/(\d+)(\d\d\d)/', '\1 \2', $number)) != $number) {
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$number = $foundThousand;
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}
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$number .= $after;
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return strtr($number, array(' ' => $thousands, '.' => $decimals));
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}
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/**
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* Formats a number into a currency format.
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*
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* ### Options
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*
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* - `wholeSymbol` - The currency symbol to use for whole numbers,
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* greater than 1, or less than -1.
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* - `wholePosition` - The position the whole symbol should be placed
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* valid options are 'before' & 'after'.
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* - `fractionSymbol` - The currency symbol to use for fractional numbers.
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* - `fractionPosition` - The position the fraction symbol should be placed
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* valid options are 'before' & 'after'.
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* - `before` - The currency symbol to place before whole numbers
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* ie. '$'. `before` is an alias for `wholeSymbol`.
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* - `after` - The currency symbol to place after decimal numbers
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* ie. 'c'. Set to boolean false to use no decimal symbol.
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* eg. 0.35 => $0.35. `after` is an alias for `fractionSymbol`
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* - `zero` - The text to use for zero values, can be a
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* string or a number. ie. 0, 'Free!'
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* - `places` - Number of decimal places to use. ie. 2
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* - `thousands` - Thousands separator ie. ','
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* - `decimals` - Decimal separator symbol ie. '.'
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* - `negative` - Symbol for negative numbers. If equal to '()',
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* the number will be wrapped with ( and )
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* - `escape` - Should the output be escaped for html special characters.
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* The default value for this option is controlled by the currency settings.
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* By default the EUR, and GBP contain HTML encoded symbols. If you require non HTML
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* encoded symbols you will need to update the settings with the correct bytes.
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*
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* @param float $number
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* @param string $currency Shortcut to default options. Valid values are
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* 'USD', 'EUR', 'GBP', otherwise set at least 'before' and 'after' options.
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* @param array $options
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* @return string Number formatted as a currency.
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* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/number.html#NumberHelper::currency
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*/
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public static function currency($number, $currency = 'USD', $options = array()) {
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$default = self::$_currencyDefaults;
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if (isset(self::$_currencies[$currency])) {
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$default = self::$_currencies[$currency];
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} elseif (is_string($currency)) {
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$options['before'] = $currency;
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}
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$options = array_merge($default, $options);
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if (isset($options['before']) && $options['before'] !== '') {
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$options['wholeSymbol'] = $options['before'];
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}
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if (isset($options['after']) && !$options['after'] !== '') {
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$options['fractionSymbol'] = $options['after'];
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}
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$result = $options['before'] = $options['after'] = null;
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$symbolKey = 'whole';
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if ($number == 0 ) {
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if ($options['zero'] !== 0 ) {
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return $options['zero'];
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}
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} elseif ($number < 1 && $number > -1 ) {
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if ($options['fractionSymbol'] !== false) {
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$multiply = intval('1' . str_pad('', $options['places'], '0'));
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$number = $number * $multiply;
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$options['places'] = null;
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$symbolKey = 'fraction';
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}
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}
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$position = $options[$symbolKey . 'Position'] != 'after' ? 'before' : 'after';
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$options[$position] = $options[$symbolKey . 'Symbol'];
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$abs = abs($number);
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$result = self::format($abs, $options);
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if ($number < 0 ) {
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if ($options['negative'] == '()') {
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$result = '(' . $result . ')';
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} else {
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$result = $options['negative'] . $result;
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}
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}
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return $result;
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}
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/**
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* Add a currency format to the Number helper. Makes reusing
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* currency formats easier.
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*
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* {{{ $number->addFormat('NOK', array('before' => 'Kr. ')); }}}
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*
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* You can now use `NOK` as a shortform when formatting currency amounts.
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*
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* {{{ $number->currency($value, 'NOK'); }}}
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*
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* Added formats are merged with the defaults defined in CakeNumber::$_currencyDefaults
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* See CakeNumber::currency() for more information on the various options and their function.
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*
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* @param string $formatName The format name to be used in the future.
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* @param array $options The array of options for this format.
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* @return void
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* @see NumberHelper::currency()
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* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/number.html#NumberHelper::addFormat
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*/
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public static function addFormat($formatName, $options) {
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self::$_currencies[$formatName] = $options + self::$_currencyDefaults;
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}
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}
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