13calculationCyclicFormulae.php 3.8 KB

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  1. <?php
  2. /**
  3. * PHPExcel
  4. *
  5. * Copyright (C) 2006 - 2014 PHPExcel
  6. *
  7. * This library is free software; you can redistribute it and/or
  8. * modify it under the terms of the GNU Lesser General Public
  9. * License as published by the Free Software Foundation; either
  10. * version 2.1 of the License, or (at your option) any later version.
  11. *
  12. * This library is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15. * Lesser General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU Lesser General Public
  18. * License along with this library; if not, write to the Free Software
  19. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20. *
  21. * @category PHPExcel
  22. * @package PHPExcel
  23. * @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
  24. * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
  25. * @version ##VERSION##, ##DATE##
  26. */
  27. /** Error reporting */
  28. error_reporting(E_ALL);
  29. ini_set('display_errors', TRUE);
  30. ini_set('display_startup_errors', TRUE);
  31. date_default_timezone_set('Europe/London');
  32. define('EOL',(PHP_SAPI == 'cli') ? PHP_EOL : '<br />');
  33. date_default_timezone_set('Europe/London');
  34. /** Include PHPExcel */
  35. require_once dirname(__FILE__) . '/../Classes/PHPExcel.php';
  36. // Create new PHPExcel object
  37. echo date('H:i:s') , " Create new PHPExcel object" , EOL;
  38. $objPHPExcel = new PHPExcel();
  39. // Add some data, we will use some formulas here
  40. echo date('H:i:s') , " Add some data and formulas" , EOL;
  41. $objPHPExcel->getActiveSheet()->setCellValue('A1', '=B1')
  42. ->setCellValue('A2', '=B2+1')
  43. ->setCellValue('B1', '=A1+1')
  44. ->setCellValue('B2', '=A2');
  45. PHPExcel_Calculation::getInstance($objPHPExcel)->cyclicFormulaCount = 100;
  46. // Calculated data
  47. echo date('H:i:s') , " Calculated data" , EOL;
  48. for($row = 1; $row <= 2; ++$row) {
  49. for ($col = 'A'; $col != 'C'; ++$col) {
  50. if ((!is_null($formula = $objPHPExcel->getActiveSheet()->getCell($col.$row)->getValue())) &&
  51. ($formula[0] == '=')) {
  52. echo 'Value of ' , $col , $row , ' [' , $formula , ']: ' ,
  53. $objPHPExcel->getActiveSheet()->getCell($col.$row)->getCalculatedValue() . EOL;
  54. }
  55. }
  56. }
  57. // Save Excel 2007 file
  58. echo date('H:i:s') , " Write to Excel2007 format" , EOL;
  59. $callStartTime = microtime(true);
  60. $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
  61. //
  62. // If we set Pre Calculated Formulas to true then PHPExcel will calculate all formulae in the
  63. // workbook before saving. This adds time and memory overhead, and can cause some problems with formulae
  64. // using functions or features (such as array formulae) that aren't yet supported by the calculation engine
  65. // If the value is false (the default) for the Excel2007 Writer, then MS Excel (or the application used to
  66. // open the file) will need to recalculate values itself to guarantee that the correct results are available.
  67. //
  68. //$objWriter->setPreCalculateFormulas(true);
  69. $objWriter->save(str_replace('.php', '.xlsx', __FILE__));
  70. $callEndTime = microtime(true);
  71. $callTime = $callEndTime - $callStartTime;
  72. echo date('H:i:s') , " File written to " , str_replace('.php', '.xlsx', pathinfo(__FILE__, PATHINFO_BASENAME)) , EOL;
  73. echo 'Call time to write Workbook was ' , sprintf('%.4f',$callTime) , " seconds" , EOL;
  74. // Echo memory usage
  75. echo date('H:i:s') , ' Current memory usage: ' , (memory_get_usage(true) / 1024 / 1024) , " MB" , EOL;
  76. // Echo memory peak usage
  77. echo date('H:i:s') , " Peak memory usage: " , (memory_get_peak_usage(true) / 1024 / 1024) , " MB" , EOL;
  78. // Echo done
  79. echo date('H:i:s') , " Done writing file" , EOL;
  80. echo 'File has been created in ' , getcwd() , EOL;