1 | <?php |
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2 | |
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3 | /** |
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4 | * PHPExcel |
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5 | * |
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6 | * Copyright (c) 2006 - 2014 PHPExcel |
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7 | * |
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8 | * This library is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the GNU Lesser General Public |
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10 | * License as published by the Free Software Foundation; either |
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11 | * version 2.1 of the License, or (at your option) any later version. |
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12 | * |
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13 | * This library is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 | * Lesser General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU Lesser General Public |
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19 | * License along with this library; if not, write to the Free Software |
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20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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21 | * |
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22 | * @category PHPExcel |
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23 | * @package PHPExcel_Shared |
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24 | * @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel) |
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25 | * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL |
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26 | * @version 1.8.0, 2014-03-02 |
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27 | */ |
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28 | |
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29 | |
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30 | /** |
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31 | * PHPExcel_Shared_Date |
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32 | * |
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33 | * @category PHPExcel |
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34 | * @package PHPExcel_Shared |
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35 | * @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel) |
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36 | */ |
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37 | class PHPExcel_Shared_Date |
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38 | { |
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39 | /** constants */ |
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40 | const CALENDAR_WINDOWS_1900 = 1900; // Base date of 1st Jan 1900 = 1.0 |
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41 | const CALENDAR_MAC_1904 = 1904; // Base date of 2nd Jan 1904 = 1.0 |
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42 | |
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43 | /* |
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44 | * Names of the months of the year, indexed by shortname |
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45 | * Planned usage for locale settings |
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46 | * |
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47 | * @public |
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48 | * @var string[] |
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49 | */ |
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50 | public static $_monthNames = array( 'Jan' => 'January', |
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51 | 'Feb' => 'February', |
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52 | 'Mar' => 'March', |
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53 | 'Apr' => 'April', |
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54 | 'May' => 'May', |
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55 | 'Jun' => 'June', |
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56 | 'Jul' => 'July', |
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57 | 'Aug' => 'August', |
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58 | 'Sep' => 'September', |
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59 | 'Oct' => 'October', |
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60 | 'Nov' => 'November', |
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61 | 'Dec' => 'December', |
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62 | ); |
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63 | |
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64 | /* |
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65 | * Names of the months of the year, indexed by shortname |
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66 | * Planned usage for locale settings |
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67 | * |
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68 | * @public |
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69 | * @var string[] |
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70 | */ |
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71 | public static $_numberSuffixes = array( 'st', |
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72 | 'nd', |
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73 | 'rd', |
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74 | 'th', |
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75 | ); |
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76 | |
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77 | /* |
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78 | * Base calendar year to use for calculations |
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79 | * |
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80 | * @private |
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81 | * @var int |
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82 | */ |
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83 | protected static $_excelBaseDate = self::CALENDAR_WINDOWS_1900; |
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84 | |
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85 | /** |
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86 | * Set the Excel calendar (Windows 1900 or Mac 1904) |
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87 | * |
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88 | * @param integer $baseDate Excel base date (1900 or 1904) |
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89 | * @return boolean Success or failure |
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90 | */ |
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91 | public static function setExcelCalendar($baseDate) { |
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92 | if (($baseDate == self::CALENDAR_WINDOWS_1900) || |
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93 | ($baseDate == self::CALENDAR_MAC_1904)) { |
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94 | self::$_excelBaseDate = $baseDate; |
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95 | return TRUE; |
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96 | } |
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97 | return FALSE; |
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98 | } // function setExcelCalendar() |
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99 | |
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100 | |
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101 | /** |
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102 | * Return the Excel calendar (Windows 1900 or Mac 1904) |
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103 | * |
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104 | * @return integer Excel base date (1900 or 1904) |
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105 | */ |
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106 | public static function getExcelCalendar() { |
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107 | return self::$_excelBaseDate; |
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108 | } // function getExcelCalendar() |
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109 | |
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110 | |
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111 | /** |
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112 | * Convert a date from Excel to PHP |
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113 | * |
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114 | * @param long $dateValue Excel date/time value |
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115 | * @param boolean $adjustToTimezone Flag indicating whether $dateValue should be treated as |
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116 | * a UST timestamp, or adjusted to UST |
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117 | * @param string $timezone The timezone for finding the adjustment from UST |
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118 | * @return long PHP serialized date/time |
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119 | */ |
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120 | public static function ExcelToPHP($dateValue = 0, $adjustToTimezone = FALSE, $timezone = NULL) { |
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121 | if (self::$_excelBaseDate == self::CALENDAR_WINDOWS_1900) { |
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122 | $my_excelBaseDate = 25569; |
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123 | // Adjust for the spurious 29-Feb-1900 (Day 60) |
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124 | if ($dateValue < 60) { |
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125 | --$my_excelBaseDate; |
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126 | } |
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127 | } else { |
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128 | $my_excelBaseDate = 24107; |
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129 | } |
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130 | |
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131 | // Perform conversion |
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132 | if ($dateValue >= 1) { |
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133 | $utcDays = $dateValue - $my_excelBaseDate; |
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134 | $returnValue = round($utcDays * 86400); |
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135 | if (($returnValue <= PHP_INT_MAX) && ($returnValue >= -PHP_INT_MAX)) { |
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136 | $returnValue = (integer) $returnValue; |
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137 | } |
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138 | } else { |
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139 | $hours = round($dateValue * 24); |
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140 | $mins = round($dateValue * 1440) - round($hours * 60); |
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141 | $secs = round($dateValue * 86400) - round($hours * 3600) - round($mins * 60); |
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142 | $returnValue = (integer) gmmktime($hours, $mins, $secs); |
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143 | } |
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144 | |
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145 | $timezoneAdjustment = ($adjustToTimezone) ? |
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146 | PHPExcel_Shared_TimeZone::getTimezoneAdjustment($timezone, $returnValue) : |
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147 | 0; |
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148 | |
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149 | // Return |
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150 | return $returnValue + $timezoneAdjustment; |
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151 | } // function ExcelToPHP() |
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152 | |
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153 | |
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154 | /** |
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155 | * Convert a date from Excel to a PHP Date/Time object |
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156 | * |
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157 | * @param integer $dateValue Excel date/time value |
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158 | * @return integer PHP date/time object |
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159 | */ |
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160 | public static function ExcelToPHPObject($dateValue = 0) { |
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161 | $dateTime = self::ExcelToPHP($dateValue); |
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162 | $days = floor($dateTime / 86400); |
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163 | $time = round((($dateTime / 86400) - $days) * 86400); |
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164 | $hours = round($time / 3600); |
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165 | $minutes = round($time / 60) - ($hours * 60); |
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166 | $seconds = round($time) - ($hours * 3600) - ($minutes * 60); |
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167 | |
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168 | $dateObj = date_create('1-Jan-1970+'.$days.' days'); |
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169 | $dateObj->setTime($hours,$minutes,$seconds); |
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170 | |
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171 | return $dateObj; |
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172 | } // function ExcelToPHPObject() |
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173 | |
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174 | |
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175 | /** |
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176 | * Convert a date from PHP to Excel |
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177 | * |
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178 | * @param mixed $dateValue PHP serialized date/time or date object |
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179 | * @param boolean $adjustToTimezone Flag indicating whether $dateValue should be treated as |
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180 | * a UST timestamp, or adjusted to UST |
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181 | * @param string $timezone The timezone for finding the adjustment from UST |
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182 | * @return mixed Excel date/time value |
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183 | * or boolean FALSE on failure |
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184 | */ |
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185 | public static function PHPToExcel($dateValue = 0, $adjustToTimezone = FALSE, $timezone = NULL) { |
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186 | $saveTimeZone = date_default_timezone_get(); |
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187 | date_default_timezone_set('UTC'); |
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188 | $retValue = FALSE; |
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189 | if ((is_object($dateValue)) && ($dateValue instanceof DateTime)) { |
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190 | $retValue = self::FormattedPHPToExcel( $dateValue->format('Y'), $dateValue->format('m'), $dateValue->format('d'), |
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191 | $dateValue->format('H'), $dateValue->format('i'), $dateValue->format('s') |
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192 | ); |
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193 | } elseif (is_numeric($dateValue)) { |
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194 | $retValue = self::FormattedPHPToExcel( date('Y',$dateValue), date('m',$dateValue), date('d',$dateValue), |
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195 | date('H',$dateValue), date('i',$dateValue), date('s',$dateValue) |
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196 | ); |
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197 | } |
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198 | date_default_timezone_set($saveTimeZone); |
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199 | |
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200 | return $retValue; |
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201 | } // function PHPToExcel() |
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202 | |
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203 | |
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204 | /** |
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205 | * FormattedPHPToExcel |
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206 | * |
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207 | * @param long $year |
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208 | * @param long $month |
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209 | * @param long $day |
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210 | * @param long $hours |
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211 | * @param long $minutes |
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212 | * @param long $seconds |
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213 | * @return long Excel date/time value |
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214 | */ |
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215 | public static function FormattedPHPToExcel($year, $month, $day, $hours=0, $minutes=0, $seconds=0) { |
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216 | if (self::$_excelBaseDate == self::CALENDAR_WINDOWS_1900) { |
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217 | // |
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218 | // Fudge factor for the erroneous fact that the year 1900 is treated as a Leap Year in MS Excel |
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219 | // This affects every date following 28th February 1900 |
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220 | // |
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221 | $excel1900isLeapYear = TRUE; |
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222 | if (($year == 1900) && ($month <= 2)) { $excel1900isLeapYear = FALSE; } |
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223 | $my_excelBaseDate = 2415020; |
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224 | } else { |
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225 | $my_excelBaseDate = 2416481; |
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226 | $excel1900isLeapYear = FALSE; |
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227 | } |
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228 | |
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229 | // Julian base date Adjustment |
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230 | if ($month > 2) { |
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231 | $month -= 3; |
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232 | } else { |
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233 | $month += 9; |
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234 | --$year; |
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235 | } |
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236 | |
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237 | // Calculate the Julian Date, then subtract the Excel base date (JD 2415020 = 31-Dec-1899 Giving Excel Date of 0) |
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238 | $century = substr($year,0,2); |
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239 | $decade = substr($year,2,2); |
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240 | $excelDate = floor((146097 * $century) / 4) + floor((1461 * $decade) / 4) + floor((153 * $month + 2) / 5) + $day + 1721119 - $my_excelBaseDate + $excel1900isLeapYear; |
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241 | |
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242 | $excelTime = (($hours * 3600) + ($minutes * 60) + $seconds) / 86400; |
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243 | |
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244 | return (float) $excelDate + $excelTime; |
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245 | } // function FormattedPHPToExcel() |
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246 | |
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247 | |
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248 | /** |
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249 | * Is a given cell a date/time? |
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250 | * |
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251 | * @param PHPExcel_Cell $pCell |
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252 | * @return boolean |
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253 | */ |
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254 | public static function isDateTime(PHPExcel_Cell $pCell) { |
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255 | return self::isDateTimeFormat( |
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256 | $pCell->getWorksheet()->getStyle( |
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257 | $pCell->getCoordinate() |
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258 | )->getNumberFormat() |
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259 | ); |
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260 | } // function isDateTime() |
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261 | |
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262 | |
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263 | /** |
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264 | * Is a given number format a date/time? |
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265 | * |
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266 | * @param PHPExcel_Style_NumberFormat $pFormat |
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267 | * @return boolean |
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268 | */ |
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269 | public static function isDateTimeFormat(PHPExcel_Style_NumberFormat $pFormat) { |
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270 | return self::isDateTimeFormatCode($pFormat->getFormatCode()); |
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271 | } // function isDateTimeFormat() |
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272 | |
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273 | |
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274 | private static $possibleDateFormatCharacters = 'eymdHs'; |
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275 | |
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276 | /** |
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277 | * Is a given number format code a date/time? |
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278 | * |
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279 | * @param string $pFormatCode |
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280 | * @return boolean |
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281 | */ |
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282 | public static function isDateTimeFormatCode($pFormatCode = '') { |
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283 | if (strtolower($pFormatCode) === strtolower(PHPExcel_Style_NumberFormat::FORMAT_GENERAL)) |
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284 | // "General" contains an epoch letter 'e', so we trap for it explicitly here (case-insensitive check) |
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285 | return FALSE; |
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286 | if (preg_match('/[0#]E[+-]0/i', $pFormatCode)) |
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287 | // Scientific format |
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288 | return FALSE; |
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289 | // Switch on formatcode |
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290 | switch ($pFormatCode) { |
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291 | // Explicitly defined date formats |
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292 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_YYYYMMDD: |
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293 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_YYYYMMDD2: |
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294 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_DDMMYYYY: |
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295 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_DMYSLASH: |
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296 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_DMYMINUS: |
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297 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_DMMINUS: |
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298 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_MYMINUS: |
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299 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_DATETIME: |
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300 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME1: |
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301 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME2: |
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302 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME3: |
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303 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME4: |
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304 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME5: |
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305 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME6: |
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306 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME7: |
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307 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME8: |
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308 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_YYYYMMDDSLASH: |
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309 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_XLSX14: |
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310 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_XLSX15: |
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311 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_XLSX16: |
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312 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_XLSX17: |
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313 | case PHPExcel_Style_NumberFormat::FORMAT_DATE_XLSX22: |
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314 | return TRUE; |
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315 | } |
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316 | |
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317 | // Typically number, currency or accounting (or occasionally fraction) formats |
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318 | if ((substr($pFormatCode,0,1) == '_') || (substr($pFormatCode,0,2) == '0 ')) { |
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319 | return FALSE; |
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320 | } |
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321 | // Try checking for any of the date formatting characters that don't appear within square braces |
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322 | if (preg_match('/(^|\])[^\[]*['.self::$possibleDateFormatCharacters.']/i',$pFormatCode)) { |
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323 | // We might also have a format mask containing quoted strings... |
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324 | // we don't want to test for any of our characters within the quoted blocks |
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325 | if (strpos($pFormatCode,'"') !== FALSE) { |
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326 | $segMatcher = FALSE; |
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327 | foreach(explode('"',$pFormatCode) as $subVal) { |
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328 | // Only test in alternate array entries (the non-quoted blocks) |
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329 | if (($segMatcher = !$segMatcher) && |
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330 | (preg_match('/(^|\])[^\[]*['.self::$possibleDateFormatCharacters.']/i',$subVal))) { |
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331 | return TRUE; |
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332 | } |
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333 | } |
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334 | return FALSE; |
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335 | } |
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336 | return TRUE; |
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337 | } |
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338 | |
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339 | // No date... |
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340 | return FALSE; |
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341 | } // function isDateTimeFormatCode() |
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342 | |
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343 | |
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344 | /** |
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345 | * Convert a date/time string to Excel time |
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346 | * |
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347 | * @param string $dateValue Examples: '2009-12-31', '2009-12-31 15:59', '2009-12-31 15:59:10' |
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348 | * @return float|FALSE Excel date/time serial value |
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349 | */ |
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350 | public static function stringToExcel($dateValue = '') { |
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351 | if (strlen($dateValue) < 2) |
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352 | return FALSE; |
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353 | if (!preg_match('/^(\d{1,4}[ \.\/\-][A-Z]{3,9}([ \.\/\-]\d{1,4})?|[A-Z]{3,9}[ \.\/\-]\d{1,4}([ \.\/\-]\d{1,4})?|\d{1,4}[ \.\/\-]\d{1,4}([ \.\/\-]\d{1,4})?)( \d{1,2}:\d{1,2}(:\d{1,2})?)?$/iu', $dateValue)) |
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354 | return FALSE; |
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355 | |
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356 | $dateValueNew = PHPExcel_Calculation_DateTime::DATEVALUE($dateValue); |
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357 | |
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358 | if ($dateValueNew === PHPExcel_Calculation_Functions::VALUE()) { |
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359 | return FALSE; |
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360 | } else { |
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361 | if (strpos($dateValue, ':') !== FALSE) { |
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362 | $timeValue = PHPExcel_Calculation_DateTime::TIMEVALUE($dateValue); |
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363 | if ($timeValue === PHPExcel_Calculation_Functions::VALUE()) { |
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364 | return FALSE; |
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365 | } |
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366 | $dateValueNew += $timeValue; |
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367 | } |
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368 | return $dateValueNew; |
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369 | } |
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370 | |
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371 | |
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372 | } |
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373 | |
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374 | public static function monthStringToNumber($month) { |
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375 | $monthIndex = 1; |
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376 | foreach(self::$_monthNames as $shortMonthName => $longMonthName) { |
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377 | if (($month === $longMonthName) || ($month === $shortMonthName)) { |
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378 | return $monthIndex; |
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379 | } |
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380 | ++$monthIndex; |
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381 | } |
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382 | return $month; |
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383 | } |
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384 | |
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385 | public static function dayStringToNumber($day) { |
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386 | $strippedDayValue = (str_replace(self::$_numberSuffixes,'',$day)); |
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387 | if (is_numeric($strippedDayValue)) { |
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388 | return $strippedDayValue; |
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389 | } |
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390 | return $day; |
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391 | } |
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392 | |
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393 | } |
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