CRM/Utils/Money.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | Copyright CiviCRM LLC. All rights reserved.                        |
   5  |                                                                    |
   6  | This work is published under the GNU AGPLv3 license with some      |
   7  | permitted exceptions and without any warranty. For full license    |
   8  | and copyright information, see https://civicrm.org/licensing       |
   9  +--------------------------------------------------------------------+
  10  */
  11
  12 /**
  13  *
  14  * @package CRM
  15  * @copyright CiviCRM LLC https://civicrm.org/licensing
  16  */
  17
  18 use Brick\Money\Money;
  19 use Brick\Money\Context\DefaultContext;
  20 use Brick\Math\RoundingMode;
  21
  22 /**
  23  * Money utilties
  24  */
  25 class CRM_Utils_Money {
  26   public static $_currencySymbols = NULL;
  27
  28   /**
  29    * Format a monetary string.
  30    *
  31    * Format a monetary string basing on the amount provided,
  32    * ISO currency code provided and a format string consisting of:
  33    *
  34    * %a - the formatted amount
  35    * %C - the currency ISO code (e.g., 'USD') if provided
  36    * %c - the currency symbol (e.g., '$') if available
  37    *
  38    * @param float $amount
  39    *   The monetary amount to display (1234.56).
  40    * @param string $currency
  41    *   The three-letter ISO currency code ('USD').
  42    * @param string $format
  43    *   The desired currency format.
  44    * @param bool $onlyNumber
  45    * @param string $valueFormat
  46    *   The desired monetary value display format (e.g. '%!i').
  47    *
  48    * @return string
  49    *   formatted monetary string
  50    *
  51    */
  52   public static function format($amount, $currency = NULL, $format = NULL, $onlyNumber = FALSE, $valueFormat = NULL) {
  53
  54     if (CRM_Utils_System::isNull($amount)) {
  55       return '';
  56     }
  57
  58     $config = CRM_Core_Config::singleton();
  59
  60     if (!$format) {
  61       $format = $config->moneyformat;
  62     }
  63
  64     if (!$valueFormat) {
  65       $valueFormat = $config->moneyvalueformat;
  66     }
  67
  68     if (!empty($valueFormat) && $valueFormat !== '%!i') {
  69       CRM_Core_Error::deprecatedFunctionWarning('Having a Money Value format other than !%i is deprecated, please report this on the GitLab Issue https://lab.civicrm.org/dev/core/-/issues/1494 with the relevant moneyValueFormat you use.');
  70     }
  71
  72     if ($onlyNumber) {
  73       // money_format() exists only in certain PHP install (CRM-650)
  74       if (is_numeric($amount) and function_exists('money_format')) {
  75         $amount = money_format($valueFormat, $amount);
  76       }
  77       return $amount;
  78     }
  79
  80     if (!self::$_currencySymbols) {
  81       self::$_currencySymbols = CRM_Core_PseudoConstant::get('CRM_Contribute_DAO_Contribution', 'currency', [
  82         'keyColumn' => 'name',
  83         'labelColumn' => 'symbol',
  84       ]);
  85     }
  86
  87     if (!$currency) {
  88       $currency = $config->defaultCurrency;
  89     }
  90
  91     // ensure $currency is a valid currency code
  92     // for backwards-compatibility, also accept one space instead of a currency
  93     if ($currency != ' ' && !array_key_exists($currency, self::$_currencySymbols)) {
  94       throw new CRM_Core_Exception("Invalid currency \"{$currency}\"");
  95     }
  96
  97     $amount = self::formatNumericByFormat($amount, $valueFormat);
  98     // If it contains tags, means that HTML was passed and the
  99     // amount is already converted properly,
 100     // so don't mess with it again.
 101     // @todo deprecate handling for the html tags because .... WTF
 102     if (strpos($amount, '<') === FALSE) {
 103       $amount = self::replaceCurrencySeparators($amount);
 104     }
 105
 106     $replacements = [
 107       '%a' => $amount,
 108       '%C' => $currency,
 109       '%c' => CRM_Utils_Array::value($currency, self::$_currencySymbols, $currency),
 110     ];
 111     return strtr($format, $replacements);
 112   }
 113
 114   /**
 115    * This is a placeholder function for calculating the number of decimal places for a currency.
 116    *
 117    * Currently code assumes 2 decimal places but some currencies (bitcoin, middle eastern) have
 118    * more. By using this function we can signpost the locations where the number of decimal places is
 119    * currency specific for future enhancement.
 120    *
 121    * @param string $currency
 122    *
 123    * @return int
 124    *   Number of decimal places.
 125    */
 126   public static function getCurrencyPrecision($currency = NULL) {
 127     return 2;
 128   }
 129
 130   /**
 131    * Subtract currencies using integers instead of floats, to preserve precision
 132    *
 133    * @param string|float $leftOp
 134    * @param string|float $rightOp
 135    * @param string $currency
 136    *
 137    * @return float
 138    *   Result of subtracting $rightOp from $leftOp to the precision of $currency
 139    */
 140   public static function subtractCurrencies($leftOp, $rightOp, $currency) {
 141     if (is_numeric($leftOp) && is_numeric($rightOp)) {
 142       $leftMoney = Money::of($leftOp, $currency, new DefaultContext(), RoundingMode::CEILING);
 143       $rightMoney = Money::of($rightOp, $currency, new DefaultContext(), RoundingMode::CEILING);
 144       return $leftMoney->minus($rightMoney)->getAmount()->toFloat();
 145     }
 146   }
 147
 148   /**
 149    * Tests if two currency values are equal, taking into account the currency's
 150    * precision, so that the two values are compared as integers after rounding.
 151    *
 152    * Eg.
 153    *
 154    * 1.231 == 1.232 with a currency precision of 2 decimal points
 155    * 1.234 != 1.236 with a currency precision of 2 decimal points
 156    * 1.300 != 1.200 with a currency precision of 2 decimal points
 157    *
 158    * @param $value1
 159    * @param $value2
 160    * @param $currency
 161    *
 162    * @return bool
 163    */
 164   public static function equals($value1, $value2, $currency) {
 165     $precision = pow(10, self::getCurrencyPrecision($currency));
 166
 167     return (int) round($value1 * $precision) == (int) round($value2 * $precision);
 168   }
 169
 170   /**
 171    * Format money for display (just numeric part) according to the current locale.
 172    *
 173    * This calls the underlying system function but does not handle currency separators.
 174    *
 175    * It's not totally clear when it changes the $amount value but has historical usage.
 176    *
 177    * @param $amount
 178    *
 179    * @return string
 180    */
 181   protected static function formatLocaleNumeric($amount) {
 182     if (CRM_Core_Config::singleton()->moneyvalueformat !== '%!i') {
 183       CRM_Core_Error::deprecatedFunctionWarning('Having a Money Value format other than !%i is deprecated, please report this on GitLab with the relevant moneyValueFormat you use.');
 184     }
 185     return self::formatNumericByFormat($amount, CRM_Core_Config::singleton()->moneyvalueformat);
 186   }
 187
 188   /**
 189    * Format money for display (just numeric part) according to the current locale with rounding.
 190    *
 191    * At this stage this is conceived as an internal function with the currency wrapper
 192    * functions determining the number of places.
 193    *
 194    * This calls the underlying system function but does not handle currency separators.
 195    *
 196    * It's not totally clear when it changes the $amount value but has historical usage.
 197    *
 198    * @param string $amount
 199    * @param int $numberOfPlaces
 200    *
 201    * @return string
 202    */
 203   protected static function formatLocaleNumericRounded($amount, $numberOfPlaces) {
 204     return self::formatLocaleNumeric(round($amount, $numberOfPlaces));
 205   }
 206
 207   /**
 208    * Format money for display (just numeric part) according to the current locale with rounding.
 209    *
 210    * This handles both rounding & replacement of the currency separators for the locale.
 211    *
 212    * @param string $amount
 213    * @param string $currency
 214    *
 215    * @return string
 216    *   Formatted amount.
 217    */
 218   public static function formatLocaleNumericRoundedByCurrency($amount, $currency) {
 219     $amount = self::formatLocaleNumericRounded($amount, self::getCurrencyPrecision($currency));
 220     return self::replaceCurrencySeparators($amount);
 221   }
 222
 223   /**
 224    * Format money for display (just numeric part) according to the current locale with rounding based on the
 225    * default currency for the site.
 226    *
 227    * @param $amount
 228    * @return mixed
 229    */
 230   public static function formatLocaleNumericRoundedForDefaultCurrency($amount) {
 231     return self::formatLocaleNumericRoundedByCurrency($amount, self::getCurrencyPrecision(CRM_Core_Config::singleton()->defaultCurrency));
 232   }
 233
 234   /**
 235    * Replace currency separators.
 236    *
 237    * @param string $amount
 238    *
 239    * @return string
 240    */
 241   protected static function replaceCurrencySeparators($amount) {
 242     $config = CRM_Core_Config::singleton();
 243     $rep = [
 244       ',' => $config->monetaryThousandSeparator,
 245       '.' => $config->monetaryDecimalPoint,
 246     ];
 247     return strtr($amount, $rep);
 248   }
 249
 250   /**
 251    * Format numeric part of currency by the passed in format.
 252    *
 253    * This is envisaged as an internal function, with wrapper functions defining valueFormat
 254    * into easily understood functions / variables and handling separator conversions and
 255    * rounding.
 256    *
 257    * @param string $amount
 258    * @param string $valueFormat
 259    *
 260    * @return string
 261    */
 262   protected static function formatNumericByFormat($amount, $valueFormat) {
 263     // money_format() exists only in certain PHP install (CRM-650)
 264     // setlocale() affects native gettext (CRM-11054, CRM-9976)
 265     if (is_numeric($amount) && function_exists('money_format')) {
 266       $lc = setlocale(LC_MONETARY, 0);
 267       setlocale(LC_MONETARY, 'en_US.utf8', 'en_US', 'en_US.utf8', 'en_US', 'C');
 268       $amount = money_format($valueFormat, $amount);
 269       setlocale(LC_MONETARY, $lc);
 270     }
 271     return $amount;
 272   }
 273
 274 }