drupal-civicrm/sites/all/modules/civicrm/CRM/Utils/Number.php

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2018-01-14 15:10:16 +02:00
<?php
/*
+--------------------------------------------------------------------+
| CiviCRM version 4.7 |
+--------------------------------------------------------------------+
| Copyright CiviCRM LLC (c) 2004-2017 |
+--------------------------------------------------------------------+
| This file is a part of CiviCRM. |
| |
| CiviCRM is free software; you can copy, modify, and distribute it |
| under the terms of the GNU Affero General Public License |
| Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
| |
| CiviCRM is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| See the GNU Affero General Public License for more details. |
| |
| You should have received a copy of the GNU Affero General Public |
| License and the CiviCRM Licensing Exception along |
| with this program; if not, contact CiviCRM LLC |
| at info[AT]civicrm[DOT]org. If you have questions about the |
| GNU Affero General Public License or the licensing of CiviCRM, |
| see the CiviCRM license FAQ at http://civicrm.org/licensing |
+--------------------------------------------------------------------+
*/
/**
* @package CRM
* @copyright CiviCRM LLC (c) 2004-2017
*/
/**
* Class CRM_Utils_Number
*/
class CRM_Utils_Number {
/**
* Create a random number with a given precision.
*
* @param array $precision
* (int $significantDigits, int $postDecimalDigits).
*
* @return float
*
* @link https://dev.mysql.com/doc/refman/5.1/en/fixed-point-types.html
*/
public static function createRandomDecimal($precision) {
list ($sigFigs, $decFigs) = $precision;
$rand = rand(0, pow(10, $sigFigs) - 1);
return $rand / pow(10, $decFigs);
}
/**
* Given a number, coerce it to meet the precision requirement. If possible, it should
* keep the number as-is. If necessary, this may drop the least-significant digits
* and/or move the decimal place.
*
* @param int|float $keyValue
* @param array $precision
* (int $significantDigits, int $postDecimalDigits).
* @return float
* @link https://dev.mysql.com/doc/refman/5.1/en/fixed-point-types.html
*/
public static function createTruncatedDecimal($keyValue, $precision) {
list ($sigFigs, $decFigs) = $precision;
$sign = ($keyValue < 0) ? '-1' : 1;
$val = str_replace('.', '', abs($keyValue)); // ex: -123.456 ==> 123456
$val = substr($val, 0, $sigFigs); // ex: 123456 => 1234
// Move any extra digits after decimal
$extraFigs = strlen($val) - ($sigFigs - $decFigs);
if ($extraFigs > 0) {
return $sign * $val / pow(10, $extraFigs); // ex: 1234 => 1.234
}
else {
return $sign * $val;
}
}
/**
* Some kind of numbery-looky-printy thing.
*
* @param string $size
* @param bool $checkForPostMax
*
* @return int
*/
public static function formatUnitSize($size, $checkForPostMax = FALSE) {
if ($size) {
$last = strtolower($size{strlen($size) - 1});
switch ($last) {
// The 'G' modifier is available since PHP 5.1.0
case 'g':
$size *= 1024;
case 'm':
$size *= 1024;
case 'k':
$size *= 1024;
}
if ($checkForPostMax) {
$maxImportFileSize = self::formatUnitSize(ini_get('upload_max_filesize'));
$postMaxSize = self::formatUnitSize(ini_get('post_max_size'));
if ($maxImportFileSize > $postMaxSize && $postMaxSize == $size) {
CRM_Core_Session::setStatus(ts("Note: Upload max filesize ('upload_max_filesize') should not exceed Post max size ('post_max_size') as defined in PHP.ini, please check with your system administrator."), ts("Warning"), "alert");
}
// respect php.ini upload_max_filesize
if ($size > $maxImportFileSize && $size !== $postMaxSize) {
$size = $maxImportFileSize;
CRM_Core_Session::setStatus(ts("Note: Please verify your configuration for Maximum File Size (in MB) <a href='%1'>Administrator >> System Settings >> Misc</a>. It should support 'upload_max_size' as defined in PHP.ini.Please check with your system administrator.", array(1 => CRM_Utils_System::url('civicrm/admin/setting/misc', 'reset=1'))), ts("Warning"), "alert");
}
}
return $size;
}
}
}