Example #1
0
 /**
  * Create a new RichText instance
  *
  * @param Cell $pCell
  * @throws Exception
  */
 public function __construct(Cell $pCell = null)
 {
     // Initialise variables
     $this->richTextElements = array();
     // Rich-Text string attached to cell?
     if ($pCell !== null) {
         // Add cell text and style
         if ($pCell->getValue() != "") {
             $objRun = new RichText\Run($pCell->getValue());
             $objRun->setFont(clone $pCell->getParent()->getStyle($pCell->getCoordinate())->getFont());
             $this->addText($objRun);
         }
         // Set parent value
         $pCell->setValueExplicit($this, Cell\DataType::TYPE_STRING);
     }
 }
Example #2
0
 private function processTokenStack($tokens, $cellID = null, Cell $pCell = null)
 {
     if ($tokens == false) {
         return false;
     }
     //    If we're using cell caching, then $pCell may well be flushed back to the cache (which detaches the parent cell collection),
     //        so we store the parent cell collection so that we can re-attach it when necessary
     $pCellWorksheet = $pCell !== null ? $pCell->getWorksheet() : null;
     $pCellParent = $pCell !== null ? $pCell->getParent() : null;
     $stack = new Calculation\Token\Stack();
     //    Loop through each token in turn
     foreach ($tokens as $tokenData) {
         //            print_r($tokenData);
         //            echo '<br />';
         $token = $tokenData['value'];
         //            echo '<b>Token is '.$token.'</b><br />';
         // if the token is a binary operator, pop the top two values off the stack, do the operation, and push the result back on the stack
         if (isset(self::$binaryOperators[$token])) {
             //                echo 'Token is a binary operator<br />';
             //    We must have two operands, error if we don't
             if (($operand2Data = $stack->pop()) === null) {
                 return $this->raiseFormulaError('Internal error - Operand value missing from stack');
             }
             if (($operand1Data = $stack->pop()) === null) {
                 return $this->raiseFormulaError('Internal error - Operand value missing from stack');
             }
             $operand1 = self::dataTestReference($operand1Data);
             $operand2 = self::dataTestReference($operand2Data);
             //    Log what we're doing
             if ($token == ':') {
                 $this->_debugLog->writeDebugLog('Evaluating Range ', $this->showValue($operand1Data['reference']), ' ', $token, ' ', $this->showValue($operand2Data['reference']));
             } else {
                 $this->_debugLog->writeDebugLog('Evaluating ', $this->showValue($operand1), ' ', $token, ' ', $this->showValue($operand2));
             }
             //    Process the operation in the appropriate manner
             switch ($token) {
                 //    Comparison (Boolean) Operators
                 case '>':
                     //    Greater than
                 //    Greater than
                 case '<':
                     //    Less than
                 //    Less than
                 case '>=':
                     //    Greater than or Equal to
                 //    Greater than or Equal to
                 case '<=':
                     //    Less than or Equal to
                 //    Less than or Equal to
                 case '=':
                     //    Equality
                 //    Equality
                 case '<>':
                     //    Inequality
                     $this->executeBinaryComparisonOperation($cellID, $operand1, $operand2, $token, $stack);
                     break;
                     //    Binary Operators
                 //    Binary Operators
                 case ':':
                     //    Range
                     $sheet1 = $sheet2 = '';
                     if (strpos($operand1Data['reference'], '!') !== false) {
                         list($sheet1, $operand1Data['reference']) = explode('!', $operand1Data['reference']);
                     } else {
                         $sheet1 = $pCellParent !== null ? $pCellWorksheet->getTitle() : '';
                     }
                     if (strpos($operand2Data['reference'], '!') !== false) {
                         list($sheet2, $operand2Data['reference']) = explode('!', $operand2Data['reference']);
                     } else {
                         $sheet2 = $sheet1;
                     }
                     if ($sheet1 == $sheet2) {
                         if ($operand1Data['reference'] === null) {
                             if (trim($operand1Data['value']) != '' && is_numeric($operand1Data['value'])) {
                                 $operand1Data['reference'] = $pCell->getColumn() . $operand1Data['value'];
                             } elseif (trim($operand1Data['reference']) == '') {
                                 $operand1Data['reference'] = $pCell->getCoordinate();
                             } else {
                                 $operand1Data['reference'] = $operand1Data['value'] . $pCell->getRow();
                             }
                         }
                         if ($operand2Data['reference'] === null) {
                             if (trim($operand2Data['value']) != '' && is_numeric($operand2Data['value'])) {
                                 $operand2Data['reference'] = $pCell->getColumn() . $operand2Data['value'];
                             } elseif (trim($operand2Data['reference']) == '') {
                                 $operand2Data['reference'] = $pCell->getCoordinate();
                             } else {
                                 $operand2Data['reference'] = $operand2Data['value'] . $pCell->getRow();
                             }
                         }
                         $oData = array_merge(explode(':', $operand1Data['reference']), explode(':', $operand2Data['reference']));
                         $oCol = $oRow = array();
                         foreach ($oData as $oDatum) {
                             $oCR = Cell::coordinateFromString($oDatum);
                             $oCol[] = Cell::columnIndexFromString($oCR[0]) - 1;
                             $oRow[] = $oCR[1];
                         }
                         $cellRef = Cell::stringFromColumnIndex(min($oCol)) . min($oRow) . ':' . Cell::stringFromColumnIndex(max($oCol)) . max($oRow);
                         if ($pCellParent !== null) {
                             $cellValue = $this->extractCellRange($cellRef, $this->spreadsheet->getSheetByName($sheet1), false);
                         } else {
                             return $this->raiseFormulaError('Unable to access Cell Reference');
                         }
                         $stack->push('Cell Reference', $cellValue, $cellRef);
                     } else {
                         $stack->push('Error', Calculation\Functions::REF(), null);
                     }
                     break;
                 case '+':
                     //    Addition
                     $this->executeNumericBinaryOperation($cellID, $operand1, $operand2, $token, 'plusEquals', $stack);
                     break;
                 case '-':
                     //    Subtraction
                     $this->executeNumericBinaryOperation($cellID, $operand1, $operand2, $token, 'minusEquals', $stack);
                     break;
                 case '*':
                     //    Multiplication
                     $this->executeNumericBinaryOperation($cellID, $operand1, $operand2, $token, 'arrayTimesEquals', $stack);
                     break;
                 case '/':
                     //    Division
                     $this->executeNumericBinaryOperation($cellID, $operand1, $operand2, $token, 'arrayRightDivide', $stack);
                     break;
                 case '^':
                     //    Exponential
                     $this->executeNumericBinaryOperation($cellID, $operand1, $operand2, $token, 'power', $stack);
                     break;
                 case '&':
                     //    Concatenation
                     //    If either of the operands is a matrix, we need to treat them both as matrices
                     //        (converting the other operand to a matrix if need be); then perform the required
                     //        matrix operation
                     if (is_bool($operand1)) {
                         $operand1 = $operand1 ? self::$localeBoolean['TRUE'] : self::$localeBoolean['FALSE'];
                     }
                     if (is_bool($operand2)) {
                         $operand2 = $operand2 ? self::$localeBoolean['TRUE'] : self::$localeBoolean['FALSE'];
                     }
                     if (is_array($operand1) || is_array($operand2)) {
                         //    Ensure that both operands are arrays/matrices
                         self::checkMatrixOperands($operand1, $operand2, 2);
                         try {
                             //    Convert operand 1 from a PHP array to a matrix
                             $matrix = new Shared\JAMA\Matrix($operand1);
                             //    Perform the required operation against the operand 1 matrix, passing in operand 2
                             $matrixResult = $matrix->concat($operand2);
                             $result = $matrixResult->getArray();
                         } catch (Exception $ex) {
                             $this->_debugLog->writeDebugLog('JAMA Matrix Exception: ', $ex->getMessage());
                             $result = '#VALUE!';
                         }
                     } else {
                         $result = '"' . str_replace('""', '"', self::unwrapResult($operand1, '"') . self::unwrapResult($operand2, '"')) . '"';
                     }
                     $this->_debugLog->writeDebugLog('Evaluation Result is ', $this->showTypeDetails($result));
                     $stack->push('Value', $result);
                     break;
                 case '|':
                     //    Intersect
                     $rowIntersect = array_intersect_key($operand1, $operand2);
                     $cellIntersect = $oCol = $oRow = array();
                     foreach (array_keys($rowIntersect) as $row) {
                         $oRow[] = $row;
                         foreach ($rowIntersect[$row] as $col => $data) {
                             $oCol[] = Cell::columnIndexFromString($col) - 1;
                             $cellIntersect[$row] = array_intersect_key($operand1[$row], $operand2[$row]);
                         }
                     }
                     $cellRef = Cell::stringFromColumnIndex(min($oCol)) . min($oRow) . ':' . Cell::stringFromColumnIndex(max($oCol)) . max($oRow);
                     $this->_debugLog->writeDebugLog('Evaluation Result is ', $this->showTypeDetails($cellIntersect));
                     $stack->push('Value', $cellIntersect, $cellRef);
                     break;
             }
             // if the token is a unary operator, pop one value off the stack, do the operation, and push it back on
         } elseif ($token === '~' || $token === '%') {
             //                echo 'Token is a unary operator<br />';
             if (($arg = $stack->pop()) === null) {
                 return $this->raiseFormulaError('Internal error - Operand value missing from stack');
             }
             $arg = $arg['value'];
             if ($token === '~') {
                 //                    echo 'Token is a negation operator<br />';
                 $this->_debugLog->writeDebugLog('Evaluating Negation of ', $this->showValue($arg));
                 $multiplier = -1;
             } else {
                 //                    echo 'Token is a percentile operator<br />';
                 $this->_debugLog->writeDebugLog('Evaluating Percentile of ', $this->showValue($arg));
                 $multiplier = 0.01;
             }
             if (is_array($arg)) {
                 self::checkMatrixOperands($arg, $multiplier, 2);
                 try {
                     $matrix1 = new Shared\JAMA\Matrix($arg);
                     $matrixResult = $matrix1->arrayTimesEquals($multiplier);
                     $result = $matrixResult->getArray();
                 } catch (Exception $ex) {
                     $this->_debugLog->writeDebugLog('JAMA Matrix Exception: ', $ex->getMessage());
                     $result = '#VALUE!';
                 }
                 $this->_debugLog->writeDebugLog('Evaluation Result is ', $this->showTypeDetails($result));
                 $stack->push('Value', $result);
             } else {
                 $this->executeNumericBinaryOperation($cellID, $multiplier, $arg, '*', 'arrayTimesEquals', $stack);
             }
         } elseif (preg_match('/^' . self::CALCULATION_REGEXP_CELLREF . '$/i', $token, $matches)) {
             $cellRef = null;
             //                echo 'Element '.$token.' is a Cell reference<br />';
             if (isset($matches[8])) {
                 //                    echo 'Reference is a Range of cells<br />';
                 if ($pCell === null) {
                     //                        We can't access the range, so return a REF error
                     $cellValue = Calculation\Functions::REF();
                 } else {
                     $cellRef = $matches[6] . $matches[7] . ':' . $matches[9] . $matches[10];
                     if ($matches[2] > '') {
                         $matches[2] = trim($matches[2], "\"'");
                         if (strpos($matches[2], '[') !== false || strpos($matches[2], ']') !== false) {
                             //    It's a Reference to an external spreadsheet (not currently supported)
                             return $this->raiseFormulaError('Unable to access External Workbook');
                         }
                         $matches[2] = trim($matches[2], "\"'");
                         //                            echo '$cellRef='.$cellRef.' in worksheet '.$matches[2].'<br />';
                         $this->_debugLog->writeDebugLog('Evaluating Cell Range ', $cellRef, ' in worksheet ', $matches[2]);
                         if ($pCellParent !== null) {
                             $cellValue = $this->extractCellRange($cellRef, $this->spreadsheet->getSheetByName($matches[2]), false);
                         } else {
                             return $this->raiseFormulaError('Unable to access Cell Reference');
                         }
                         $this->_debugLog->writeDebugLog('Evaluation Result for cells ', $cellRef, ' in worksheet ', $matches[2], ' is ', $this->showTypeDetails($cellValue));
                         //                            $cellRef = $matches[2].'!'.$cellRef;
                     } else {
                         //                            echo '$cellRef='.$cellRef.' in current worksheet<br />';
                         $this->_debugLog->writeDebugLog('Evaluating Cell Range ', $cellRef, ' in current worksheet');
                         if ($pCellParent !== null) {
                             $cellValue = $this->extractCellRange($cellRef, $pCellWorksheet, false);
                         } else {
                             return $this->raiseFormulaError('Unable to access Cell Reference');
                         }
                         $this->_debugLog->writeDebugLog('Evaluation Result for cells ', $cellRef, ' is ', $this->showTypeDetails($cellValue));
                     }
                 }
             } else {
                 //                    echo 'Reference is a single Cell<br />';
                 if ($pCell === null) {
                     //                        We can't access the cell, so return a REF error
                     $cellValue = Calculation\Functions::REF();
                 } else {
                     $cellRef = $matches[6] . $matches[7];
                     if ($matches[2] > '') {
                         $matches[2] = trim($matches[2], "\"'");
                         if (strpos($matches[2], '[') !== false || strpos($matches[2], ']') !== false) {
                             //    It's a Reference to an external spreadsheet (not currently supported)
                             return $this->raiseFormulaError('Unable to access External Workbook');
                         }
                         //                            echo '$cellRef='.$cellRef.' in worksheet '.$matches[2].'<br />';
                         $this->_debugLog->writeDebugLog('Evaluating Cell ', $cellRef, ' in worksheet ', $matches[2]);
                         if ($pCellParent !== null) {
                             $cellSheet = $this->spreadsheet->getSheetByName($matches[2]);
                             if ($cellSheet && $cellSheet->cellExists($cellRef)) {
                                 $cellValue = $this->extractCellRange($cellRef, $this->spreadsheet->getSheetByName($matches[2]), false);
                                 $pCell->attach($pCellParent);
                             } else {
                                 $cellValue = null;
                             }
                         } else {
                             return $this->raiseFormulaError('Unable to access Cell Reference');
                         }
                         $this->_debugLog->writeDebugLog('Evaluation Result for cell ', $cellRef, ' in worksheet ', $matches[2], ' is ', $this->showTypeDetails($cellValue));
                         //                            $cellRef = $matches[2].'!'.$cellRef;
                     } else {
                         //                            echo '$cellRef='.$cellRef.' in current worksheet<br />';
                         $this->_debugLog->writeDebugLog('Evaluating Cell ', $cellRef, ' in current worksheet');
                         if ($pCellParent->isDataSet($cellRef)) {
                             $cellValue = $this->extractCellRange($cellRef, $pCellWorksheet, false);
                             $pCell->attach($pCellParent);
                         } else {
                             $cellValue = null;
                         }
                         $this->_debugLog->writeDebugLog('Evaluation Result for cell ', $cellRef, ' is ', $this->showTypeDetails($cellValue));
                     }
                 }
             }
             $stack->push('Value', $cellValue, $cellRef);
             // if the token is a function, pop arguments off the stack, hand them to the function, and push the result back on
         } elseif (preg_match('/^' . self::CALCULATION_REGEXP_FUNCTION . '$/i', $token, $matches)) {
             //                echo 'Token is a function<br />';
             $functionName = $matches[1];
             $argCount = $stack->pop();
             $argCount = $argCount['value'];
             if ($functionName != 'MKMATRIX') {
                 $this->_debugLog->writeDebugLog('Evaluating Function ', self::localeFunc($functionName), '() with ', $argCount == 0 ? 'no' : $argCount, ' argument', $argCount == 1 ? '' : 's');
             }
             if (isset(self::$PHPExcelFunctions[$functionName]) || isset(self::$controlFunctions[$functionName])) {
                 // function
                 if (isset(self::$PHPExcelFunctions[$functionName])) {
                     $functionCall = self::$PHPExcelFunctions[$functionName]['functionCall'];
                     $passByReference = isset(self::$PHPExcelFunctions[$functionName]['passByReference']);
                     $passCellReference = isset(self::$PHPExcelFunctions[$functionName]['passCellReference']);
                 } elseif (isset(self::$controlFunctions[$functionName])) {
                     $functionCall = self::$controlFunctions[$functionName]['functionCall'];
                     $passByReference = isset(self::$controlFunctions[$functionName]['passByReference']);
                     $passCellReference = isset(self::$controlFunctions[$functionName]['passCellReference']);
                 }
                 // get the arguments for this function
                 //                    echo 'Function '.$functionName.' expects '.$argCount.' arguments<br />';
                 $args = $argArrayVals = array();
                 for ($i = 0; $i < $argCount; ++$i) {
                     $arg = $stack->pop();
                     $a = $argCount - $i - 1;
                     if ($passByReference && isset(self::$PHPExcelFunctions[$functionName]['passByReference'][$a]) && self::$PHPExcelFunctions[$functionName]['passByReference'][$a]) {
                         if ($arg['reference'] === null) {
                             $args[] = $cellID;
                             if ($functionName != 'MKMATRIX') {
                                 $argArrayVals[] = $this->showValue($cellID);
                             }
                         } else {
                             $args[] = $arg['reference'];
                             if ($functionName != 'MKMATRIX') {
                                 $argArrayVals[] = $this->showValue($arg['reference']);
                             }
                         }
                     } else {
                         $args[] = self::unwrapResult($arg['value']);
                         if ($functionName != 'MKMATRIX') {
                             $argArrayVals[] = $this->showValue($arg['value']);
                         }
                     }
                 }
                 //    Reverse the order of the arguments
                 krsort($args);
                 if ($passByReference && $argCount == 0) {
                     $args[] = $cellID;
                     $argArrayVals[] = $this->showValue($cellID);
                 }
                 //                    echo 'Arguments are: ';
                 //                    print_r($args);
                 //                    echo '<br />';
                 if ($functionName != 'MKMATRIX') {
                     if ($this->_debugLog->getWriteDebugLog()) {
                         krsort($argArrayVals);
                         $this->_debugLog->writeDebugLog('Evaluating ', self::localeFunc($functionName), '( ', implode(self::$localeArgumentSeparator . ' ', Calculation\Functions::flattenArray($argArrayVals)), ' )');
                     }
                 }
                 //    Process each argument in turn, building the return value as an array
                 //                    if (($argCount == 1) && (is_array($args[1])) && ($functionName != 'MKMATRIX')) {
                 //                        $operand1 = $args[1];
                 //                        $this->_debugLog->writeDebugLog('Argument is a matrix: ', $this->showValue($operand1));
                 //                        $result = array();
                 //                        $row = 0;
                 //                        foreach($operand1 as $args) {
                 //                            if (is_array($args)) {
                 //                                foreach($args as $arg) {
                 //                                    $this->_debugLog->writeDebugLog('Evaluating ', self::localeFunc($functionName), '( ', $this->showValue($arg), ' )');
                 //                                    $r = call_user_func_array($functionCall, $arg);
                 //                                    $this->_debugLog->writeDebugLog('Evaluation Result for ', self::localeFunc($functionName), '() function call is ', $this->showTypeDetails($r));
                 //                                    $result[$row][] = $r;
                 //                                }
                 //                                ++$row;
                 //                            } else {
                 //                                $this->_debugLog->writeDebugLog('Evaluating ', self::localeFunc($functionName), '( ', $this->showValue($args), ' )');
                 //                                $r = call_user_func_array($functionCall, $args);
                 //                                $this->_debugLog->writeDebugLog('Evaluation Result for ', self::localeFunc($functionName), '() function call is ', $this->showTypeDetails($r));
                 //                                $result[] = $r;
                 //                            }
                 //                        }
                 //                    } else {
                 //    Process the argument with the appropriate function call
                 if ($passCellReference) {
                     $args[] = $pCell;
                 }
                 if (strpos($functionCall, '::') !== false) {
                     $result = call_user_func_array(explode('::', $functionCall), $args);
                 } else {
                     foreach ($args as &$arg) {
                         $arg = Calculation\Functions::flattenSingleValue($arg);
                     }
                     unset($arg);
                     $result = call_user_func_array($functionCall, $args);
                 }
                 if ($functionName != 'MKMATRIX') {
                     $this->_debugLog->writeDebugLog('Evaluation Result for ', self::localeFunc($functionName), '() function call is ', $this->showTypeDetails($result));
                 }
                 $stack->push('Value', self::wrapResult($result));
             }
         } else {
             // if the token is a number, boolean, string or an Excel error, push it onto the stack
             if (isset(self::$excelConstants[strtoupper($token)])) {
                 $excelConstant = strtoupper($token);
                 //                    echo 'Token is a PHPExcel constant: '.$excelConstant.'<br />';
                 $stack->push('Constant Value', self::$excelConstants[$excelConstant]);
                 $this->_debugLog->writeDebugLog('Evaluating Constant ', $excelConstant, ' as ', $this->showTypeDetails(self::$excelConstants[$excelConstant]));
             } elseif (is_numeric($token) || $token === null || is_bool($token) || $token == '' || $token[0] == '"' || $token[0] == '#') {
                 //                    echo 'Token is a number, boolean, string, null or an Excel error<br />';
                 $stack->push('Value', $token);
                 // if the token is a named range, push the named range name onto the stack
             } elseif (preg_match('/^' . self::CALCULATION_REGEXP_NAMEDRANGE . '$/i', $token, $matches)) {
                 //                    echo 'Token is a named range<br />';
                 $namedRange = $matches[6];
                 //                    echo 'Named Range is '.$namedRange.'<br />';
                 $this->_debugLog->writeDebugLog('Evaluating Named Range ', $namedRange);
                 $cellValue = $this->extractNamedRange($namedRange, null !== $pCell ? $pCellWorksheet : null, false);
                 $pCell->attach($pCellParent);
                 $this->_debugLog->writeDebugLog('Evaluation Result for named range ', $namedRange, ' is ', $this->showTypeDetails($cellValue));
                 $stack->push('Named Range', $cellValue, $namedRange);
             } else {
                 return $this->raiseFormulaError("undefined variable '{$token}'");
             }
         }
     }
     // when we're out of tokens, the stack should have a single element, the final result
     if ($stack->count() != 1) {
         return $this->raiseFormulaError("internal error");
     }
     $output = $stack->pop();
     $output = $output['value'];
     //        if ((is_array($output)) && (self::$returnArrayAsType != self::RETURN_ARRAY_AS_ARRAY)) {
     //            return array_shift(Calculation\Functions::flattenArray($output));
     //        }
     return $output;
 }
Example #3
0
 /**
  *	Add or Update a cell in cache
  *
  *	@param	Cell	$cell		Cell to update
  *	@return	void
  *	@throws	Exception
  */
 public function updateCacheData(Cell $cell)
 {
     $pCoord = $cell->getCoordinate();
     return $this->addCacheData($pCoord, $cell);
 }
Example #4
0
 /**
  * Is a given cell a date/time?
  *
  * @param	 Cell	$pCell
  * @return	 boolean
  */
 public static function isDateTime(Cell $pCell)
 {
     return self::isDateTimeFormat($pCell->getParent()->getStyle($pCell->getCoordinate())->getNumberFormat());
 }
 /**
  * Bind value to a cell
  *
  * @param Cell $cell	Cell to bind value to
  * @param mixed $value			Value to bind in cell
  * @return boolean
  */
 public function bindValue(Cell $cell, $value = null)
 {
     // sanitize UTF-8 strings
     if (is_string($value)) {
         $value = Shared_String::SanitizeUTF8($value);
     }
     // Find out data type
     $dataType = parent::dataTypeForValue($value);
     // Style logic - strings
     if ($dataType === Cell_DataType::TYPE_STRING && !$value instanceof RichText) {
         // Check for percentage
         if (preg_match('/^\\-?[0-9]*\\.?[0-9]*\\s?\\%$/', $value)) {
             // Convert value to number
             $cell->setValueExplicit((double) str_replace('%', '', $value) / 100, Cell_DataType::TYPE_NUMERIC);
             // Set style
             $cell->getParent()->getStyle($cell->getCoordinate())->getNumberFormat()->setFormatCode(Style_NumberFormat::FORMAT_PERCENTAGE);
             return true;
         }
         // Check for time without seconds e.g. '9:45', '09:45'
         if (preg_match('/^(\\d|[0-1]\\d|2[0-3]):[0-5]\\d$/', $value)) {
             list($h, $m) = explode(':', $value);
             $days = $h / 24 + $m / 1440;
             // Convert value to number
             $cell->setValueExplicit($days, Cell_DataType::TYPE_NUMERIC);
             // Set style
             $cell->getParent()->getStyle($cell->getCoordinate())->getNumberFormat()->setFormatCode(Style_NumberFormat::FORMAT_DATE_TIME3);
             return true;
         }
         // Check for time with seconds '9:45:59', '09:45:59'
         if (preg_match('/^(\\d|[0-1]\\d|2[0-3]):[0-5]\\d:[0-5]\\d$/', $value)) {
             list($h, $m, $s) = explode(':', $value);
             $days = $h / 24 + $m / 1440 + $s / 86400;
             // Convert value to number
             $cell->setValueExplicit($days, Cell_DataType::TYPE_NUMERIC);
             // Set style
             $cell->getParent()->getStyle($cell->getCoordinate())->getNumberFormat()->setFormatCode(Style_NumberFormat::FORMAT_DATE_TIME4);
             return true;
         }
         // Check for datetime, e.g. '2008-12-31', '2008-12-31 15:59', '2008-12-31 15:59:10'
         if (($v = Shared_Date::stringToExcel($value)) !== false) {
             // Convert value to Excel date
             $cell->setValueExplicit($v, Cell_DataType::TYPE_NUMERIC);
             // Set style. Either there is a time part or not. Look for ':'
             if (strpos($value, ':') !== false) {
                 $formatCode = 'yyyy-mm-dd h:mm';
             } else {
                 $formatCode = 'yyyy-mm-dd';
             }
             $cell->getParent()->getStyle($cell->getCoordinate())->getNumberFormat()->setFormatCode($formatCode);
             return true;
         }
         // Check for newline character "\n"
         if (strpos($value, "\n") !== false) {
             $value = Shared_String::SanitizeUTF8($value);
             $cell->setValueExplicit($value, Cell_DataType::TYPE_STRING);
             // Set style
             $cell->getParent()->getStyle($cell->getCoordinate())->getAlignment()->setWrapText(true);
             return true;
         }
     }
     // Not bound yet? Use parent...
     return parent::bindValue($cell, $value);
 }