mirror of
https://github.com/PHPOffice/PhpSpreadsheet.git
synced 2026-08-25 01:08:18 +00:00
oleibman
ecbd702628
Phpstan hasn't identified any errors in Samples in a long time. But, as it turns out, one particular error is suppressed: ``` Variable $helper might not be defined. ``` This error would be generated by almost all samples, and the errors that it suppresses will become problematic if we move to Level 10. We are not yet committed to doing that, but it is pretty easy to write a script to change the samples so that error no longer happens, and there isn't really any reason to delay doing so. The results of that script constitute this PR.
59 lines
1.9 KiB
PHP
59 lines
1.9 KiB
PHP
<?php
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use PhpOffice\PhpSpreadsheet\Spreadsheet;
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require __DIR__ . '/../Header.php';
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/** @var PhpOffice\PhpSpreadsheet\Helper\Sample $helper */
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$category = 'Database';
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$functionName = 'DSTDEV';
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$description = 'Estimates the standard deviation based on a sample of selected database entries';
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$helper->titles($category, $functionName, $description);
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// Create new PhpSpreadsheet object
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$spreadsheet = new Spreadsheet();
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$worksheet = $spreadsheet->getActiveSheet();
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// Add some data
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$database = [['Tree', 'Height', 'Age', 'Yield', 'Profit'],
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['Apple', 18, 20, 14, 105.00],
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['Pear', 12, 12, 10, 96.00],
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['Cherry', 13, 14, 9, 105.00],
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['Apple', 14, 15, 10, 75.00],
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['Pear', 9, 8, 8, 76.80],
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['Apple', 8, 9, 6, 45.00],
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];
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$criteria = [['Tree', 'Height', 'Age', 'Yield', 'Profit', 'Height'],
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['="=Apple"', '>10', null, null, null, '<16'],
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['="=Pear"', null, null, null, null, null],
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];
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$worksheet->fromArray($criteria, null, 'A1');
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$worksheet->fromArray($database, null, 'A4');
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$worksheet->setCellValue('A12', 'The estimated standard deviation in the yield of Apple and Pear trees');
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$worksheet->setCellValue('B12', '=DSTDEV(A4:E10,"Yield",A1:A3)');
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$worksheet->setCellValue('A13', 'The estimated standard deviation in height of Apple and Pear trees');
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$worksheet->setCellValue('B13', '=DSTDEV(A4:E10,2,A1:A3)');
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$helper->log('Database');
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$databaseData = $worksheet->rangeToArray('A4:E10', null, true, true, true);
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$helper->displayGrid($databaseData);
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// Test the formulae
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$helper->log('Criteria');
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$criteriaData = $worksheet->rangeToArray('A1:A3', null, true, true, true);
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$helper->displayGrid($criteriaData);
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$helper->logCalculationResult($worksheet, $functionName, 'B12', 'A12');
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$helper->log('Criteria');
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$criteriaData = $worksheet->rangeToArray('A1:A3', null, true, true, true);
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$helper->displayGrid($criteriaData);
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$helper->logCalculationResult($worksheet, $functionName, 'B13', 'A13');
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