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<?php/*** PHPExcel** Copyright (c) 2006 - 2013 PHPExcel** This library is free software; you can redistribute it and/or* modify it under the terms of the GNU Lesser General Public* License as published by the Free Software Foundation; either* version 2.1 of the License, or (at your option) any later version.** This library 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* Lesser General Public License for more details.** You should have received a copy of the GNU Lesser General Public* License along with this library; if not, write to the Free Software* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA** @category PHPExcel* @package PHPExcel_Calculation* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL* @version ##VERSION##, ##DATE##*//** PHPExcel root directory */if (!defined('PHPEXCEL_ROOT')) {/*** @ignore*/define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');}/*** PHPExcel_Calculation_Database** @category PHPExcel* @package PHPExcel_Calculation* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)*/class PHPExcel_Calculation_Database {/*** __fieldExtract** Extracts the column ID to use for the data field.** @access private* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param mixed $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @return string|NULL**/private static function __fieldExtract($database,$field) {$field = strtoupper(PHPExcel_Calculation_Functions::flattenSingleValue($field));$fieldNames = array_map('strtoupper',array_shift($database));if (is_numeric($field)) {$keys = array_keys($fieldNames);return $keys[$field-1];}$key = array_search($field,$fieldNames);return ($key) ? $key : NULL;}/*** __filter** Parses the selection criteria, extracts the database rows that match those criteria, and* returns that subset of rows.** @access private* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return array of mixed**/private static function __filter($database,$criteria) {$fieldNames = array_shift($database);$criteriaNames = array_shift($criteria);// Convert the criteria into a set of AND/OR conditions with [:placeholders]$testConditions = $testValues = array();$testConditionsCount = 0;foreach($criteriaNames as $key => $criteriaName) {$testCondition = array();$testConditionCount = 0;foreach($criteria as $row => $criterion) {if ($criterion[$key] > '') {$testCondition[] = '[:'.$criteriaName.']'.PHPExcel_Calculation_Functions::_ifCondition($criterion[$key]);$testConditionCount++;}}if ($testConditionCount > 1) {$testConditions[] = 'OR('.implode(',',$testCondition).')';$testConditionsCount++;} elseif($testConditionCount == 1) {$testConditions[] = $testCondition[0];$testConditionsCount++;}}if ($testConditionsCount > 1) {$testConditionSet = 'AND('.implode(',',$testConditions).')';} elseif($testConditionsCount == 1) {$testConditionSet = $testConditions[0];}// Loop through each row of the databaseforeach($database as $dataRow => $dataValues) {// Substitute actual values from the database row for our [:placeholders]$testConditionList = $testConditionSet;foreach($criteriaNames as $key => $criteriaName) {$k = array_search($criteriaName,$fieldNames);if (isset($dataValues[$k])) {$dataValue = $dataValues[$k];$dataValue = (is_string($dataValue)) ? PHPExcel_Calculation::_wrapResult(strtoupper($dataValue)) : $dataValue;$testConditionList = str_replace('[:'.$criteriaName.']',$dataValue,$testConditionList);}}// evaluate the criteria against the row data$result = PHPExcel_Calculation::getInstance()->_calculateFormulaValue('='.$testConditionList);// If the row failed to meet the criteria, remove it from the databaseif (!$result) {unset($database[$dataRow]);}}return $database;}/*** DAVERAGE** Averages the values in a column of a list or database that match conditions you specify.** Excel Function:* DAVERAGE(database,field,criteria)** @access public* @category Database Functions* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param string|integer $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return float**/public static function DAVERAGE($database,$field,$criteria) {$field = self::__fieldExtract($database,$field);if (is_null($field)) {return NULL;}// reduce the database to a set of rows that match all the criteria$database = self::__filter($database,$criteria);// extract an array of values for the requested column$colData = array();foreach($database as $row) {$colData[] = $row[$field];}// Returnreturn PHPExcel_Calculation_Statistical::AVERAGE($colData);} // function DAVERAGE()/*** DCOUNT** Counts the cells that contain numbers in a column of a list or database that match conditions* that you specify.** Excel Function:* DCOUNT(database,[field],criteria)** Excel Function:* DAVERAGE(database,field,criteria)** @access public* @category Database Functions* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param string|integer $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return integer** @TODO The field argument is optional. If field is omitted, DCOUNT counts all records in the* database that match the criteria.**/public static function DCOUNT($database,$field,$criteria) {$field = self::__fieldExtract($database,$field);if (is_null($field)) {return NULL;}// reduce the database to a set of rows that match all the criteria$database = self::__filter($database,$criteria);// extract an array of values for the requested column$colData = array();foreach($database as $row) {$colData[] = $row[$field];}// Returnreturn PHPExcel_Calculation_Statistical::COUNT($colData);} // function DCOUNT()/*** DCOUNTA** Counts the nonblank cells in a column of a list or database that match conditions that you specify.** Excel Function:* DCOUNTA(database,[field],criteria)** @access public* @category Database Functions* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param string|integer $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return integer** @TODO The field argument is optional. If field is omitted, DCOUNTA counts all records in the* database that match the criteria.**/public static function DCOUNTA($database,$field,$criteria) {$field = self::__fieldExtract($database,$field);if (is_null($field)) {return NULL;}// reduce the database to a set of rows that match all the criteria$database = self::__filter($database,$criteria);// extract an array of values for the requested column$colData = array();foreach($database as $row) {$colData[] = $row[$field];}// Returnreturn PHPExcel_Calculation_Statistical::COUNTA($colData);} // function DCOUNTA()/*** DGET** Extracts a single value from a column of a list or database that matches conditions that you* specify.** Excel Function:* DGET(database,field,criteria)** @access public* @category Database Functions* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param string|integer $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return mixed**/public static function DGET($database,$field,$criteria) {$field = self::__fieldExtract($database,$field);if (is_null($field)) {return NULL;}// reduce the database to a set of rows that match all the criteria$database = self::__filter($database,$criteria);// extract an array of values for the requested column$colData = array();foreach($database as $row) {$colData[] = $row[$field];}// Returnif (count($colData) > 1) {return PHPExcel_Calculation_Functions::NaN();}return $colData[0];} // function DGET()/*** DMAX** Returns the largest number in a column of a list or database that matches conditions you that* specify.** Excel Function:* DMAX(database,field,criteria)** @access public* @category Database Functions* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param string|integer $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return float**/public static function DMAX($database,$field,$criteria) {$field = self::__fieldExtract($database,$field);if (is_null($field)) {return NULL;}// reduce the database to a set of rows that match all the criteria$database = self::__filter($database,$criteria);// extract an array of values for the requested column$colData = array();foreach($database as $row) {$colData[] = $row[$field];}// Returnreturn PHPExcel_Calculation_Statistical::MAX($colData);} // function DMAX()/*** DMIN** Returns the smallest number in a column of a list or database that matches conditions you that* specify.** Excel Function:* DMIN(database,field,criteria)** @access public* @category Database Functions* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param string|integer $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return float**/public static function DMIN($database,$field,$criteria) {$field = self::__fieldExtract($database,$field);if (is_null($field)) {return NULL;}// reduce the database to a set of rows that match all the criteria$database = self::__filter($database,$criteria);// extract an array of values for the requested column$colData = array();foreach($database as $row) {$colData[] = $row[$field];}// Returnreturn PHPExcel_Calculation_Statistical::MIN($colData);} // function DMIN()/*** DPRODUCT** Multiplies the values in a column of a list or database that match conditions that you specify.** Excel Function:* DPRODUCT(database,field,criteria)** @access public* @category Database Functions* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param string|integer $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return float**/public static function DPRODUCT($database,$field,$criteria) {$field = self::__fieldExtract($database,$field);if (is_null($field)) {return NULL;}// reduce the database to a set of rows that match all the criteria$database = self::__filter($database,$criteria);// extract an array of values for the requested column$colData = array();foreach($database as $row) {$colData[] = $row[$field];}// Returnreturn PHPExcel_Calculation_MathTrig::PRODUCT($colData);} // function DPRODUCT()/*** DSTDEV** Estimates the standard deviation of a population based on a sample by using the numbers in a* column of a list or database that match conditions that you specify.** Excel Function:* DSTDEV(database,field,criteria)** @access public* @category Database Functions* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param string|integer $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return float**/public static function DSTDEV($database,$field,$criteria) {$field = self::__fieldExtract($database,$field);if (is_null($field)) {return NULL;}// reduce the database to a set of rows that match all the criteria$database = self::__filter($database,$criteria);// extract an array of values for the requested column$colData = array();foreach($database as $row) {$colData[] = $row[$field];}// Returnreturn PHPExcel_Calculation_Statistical::STDEV($colData);} // function DSTDEV()/*** DSTDEVP** Calculates the standard deviation of a population based on the entire population by using the* numbers in a column of a list or database that match conditions that you specify.** Excel Function:* DSTDEVP(database,field,criteria)** @access public* @category Database Functions* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param string|integer $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return float**/public static function DSTDEVP($database,$field,$criteria) {$field = self::__fieldExtract($database,$field);if (is_null($field)) {return NULL;}// reduce the database to a set of rows that match all the criteria$database = self::__filter($database,$criteria);// extract an array of values for the requested column$colData = array();foreach($database as $row) {$colData[] = $row[$field];}// Returnreturn PHPExcel_Calculation_Statistical::STDEVP($colData);} // function DSTDEVP()/*** DSUM** Adds the numbers in a column of a list or database that match conditions that you specify.** Excel Function:* DSUM(database,field,criteria)** @access public* @category Database Functions* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param string|integer $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return float**/public static function DSUM($database,$field,$criteria) {$field = self::__fieldExtract($database,$field);if (is_null($field)) {return NULL;}// reduce the database to a set of rows that match all the criteria$database = self::__filter($database,$criteria);// extract an array of values for the requested column$colData = array();foreach($database as $row) {$colData[] = $row[$field];}// Returnreturn PHPExcel_Calculation_MathTrig::SUM($colData);} // function DSUM()/*** DVAR** Estimates the variance of a population based on a sample by using the numbers in a column* of a list or database that match conditions that you specify.** Excel Function:* DVAR(database,field,criteria)** @access public* @category Database Functions* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param string|integer $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return float**/public static function DVAR($database,$field,$criteria) {$field = self::__fieldExtract($database,$field);if (is_null($field)) {return NULL;}// reduce the database to a set of rows that match all the criteria$database = self::__filter($database,$criteria);// extract an array of values for the requested column$colData = array();foreach($database as $row) {$colData[] = $row[$field];}// Returnreturn PHPExcel_Calculation_Statistical::VARFunc($colData);} // function DVAR()/*** DVARP** Calculates the variance of a population based on the entire population by using the numbers* in a column of a list or database that match conditions that you specify.** Excel Function:* DVARP(database,field,criteria)** @access public* @category Database Functions* @param mixed[] $database The range of cells that makes up the list or database.* A database is a list of related data in which rows of related* information are records, and columns of data are fields. The* first row of the list contains labels for each column.* @param string|integer $field Indicates which column is used in the function. Enter the* column label enclosed between double quotation marks, such as* "Age" or "Yield," or a number (without quotation marks) that* represents the position of the column within the list: 1 for* the first column, 2 for the second column, and so on.* @param mixed[] $criteria The range of cells that contains the conditions you specify.* You can use any range for the criteria argument, as long as it* includes at least one column label and at least one cell below* the column label in which you specify a condition for the* column.* @return float**/public static function DVARP($database,$field,$criteria) {$field = self::__fieldExtract($database,$field);if (is_null($field)) {return NULL;}// reduce the database to a set of rows that match all the criteria$database = self::__filter($database,$criteria);// extract an array of values for the requested column$colData = array();foreach($database as $row) {$colData[] = $row[$field];}// Returnreturn PHPExcel_Calculation_Statistical::VARP($colData);} // function DVARP()} // class PHPExcel_Calculation_Database