Reorganize Samples

The samples have become unwieldy when running them from a browser. In particular, the drop-down lists are fixed size with no scrolling, and many of them are now just too large. I have moved all the Calculation samples up a level, and broken several categories (Basic, Chart, DateTime, Engineering, Financial, and Reader) into several pieces.

Convert-Online (now found in the Engineering category) had a number of different problems which are now resolved. It is the only member with any significant code change.

Header.php

@@ -0,0 +1,3 @@
+<?php
+
+require __DIR__ . '/samples/Header.php';

phpstan-baseline.neon

@@ -1,15 +1,5 @@
 parameters:
 	ignoreErrors:
-		-
-			message: "#^Parameter \\#1 \\$formula of method PhpOffice\\\\PhpSpreadsheet\\\\Cell\\\\DataValidation\\:\\:setFormula1\\(\\) expects string, int given\\.$#"
-			count: 1
-			path: samples/Basic/15_Datavalidation.php
-
-		-
-			message: "#^Parameter \\#1 \\$formula of method PhpOffice\\\\PhpSpreadsheet\\\\Cell\\\\DataValidation\\:\\:setFormula2\\(\\) expects string, int given\\.$#"
-			count: 1
-			path: samples/Basic/15_Datavalidation.php
-
 		-
 			message: "#^Strict comparison using \\=\\=\\= between mixed and null will always evaluate to false\\.$#"
 			count: 1

samples/Basic1/15_Datavalidation.php

@@ -47,8 +47,8 @@ $validation->setErrorTitle('Input error');
 $validation->setError('Only numbers between 10 and 20 are allowed!');
 $validation->setPromptTitle('Allowed input');
 $validation->setPrompt('Only numbers between 10 and 20 are allowed.');
-$validation->setFormula1(10);
-$validation->setFormula2(20);
+$validation->setFormula1('10');
+$validation->setFormula2('20');
 
 $validation = $spreadsheet->getActiveSheet()->getCell('B5')->getDataValidation();
 $validation->setType(DataValidation::TYPE_LIST);

samples/Basic2/28_Iterator.php

@@ -1,19 +1,19 @@
 <?php
 
-use PhpOffice\PhpSpreadsheet\Reader\Xlsx as XLsxReader;
-use PhpOffice\PhpSpreadsheet\Writer\Xlsx as XLsxWriter;
+use PhpOffice\PhpSpreadsheet\Reader\Xlsx as XlsxReader;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx as XlsxWriter;
 
 require __DIR__ . '/../Header.php';
 
 $sampleSpreadsheet = require __DIR__ . '/../templates/sampleSpreadsheet.php';
 $filename = $helper->getTemporaryFilename();
-$writer = new XLsxWriter($sampleSpreadsheet);
+$writer = new XlsxWriter($sampleSpreadsheet);
 $callStartTime = microtime(true);
 $writer->save($filename);
 $helper->logWrite($writer, $filename, $callStartTime);
 
 $callStartTime = microtime(true);
-$reader = new XLsxReader();
+$reader = new XlsxReader();
 $spreadsheet = $reader->load($filename);
 $helper->logRead('Xlsx', $filename, $callStartTime);
 unlink($filename);