diff --git a/samples/Basic/44_Worksheet_info.php b/samples/Basic/44_Worksheet_info.php
index 57822369..406c7be2 100644
--- a/samples/Basic/44_Worksheet_info.php
+++ b/samples/Basic/44_Worksheet_info.php
@@ -1,18 +1,19 @@
 <?php
 
 use PhpOffice\PhpSpreadsheet\IOFactory;
-use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+use PhpOffice\PhpSpreadsheet\Reader\Xlsx as Reader;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx as Writer;
 
 require __DIR__ . '/../Header.php';
 
 // Create temporary file that will be read
 $sampleSpreadsheet = require __DIR__ . '/../templates/sampleSpreadsheet.php';
 $filename = $helper->getTemporaryFilename();
-$writer = new Xlsx($sampleSpreadsheet);
+$writer = new Writer($sampleSpreadsheet);
 $writer->save($filename);
 
 $inputFileType = IOFactory::identify($filename);
-$reader = IOFactory::createReader($inputFileType);
+$reader = new Reader();
 $sheetList = $reader->listWorksheetNames($filename);
 $sheetInfo = $reader->listWorksheetInfo($filename);
 
diff --git a/samples/Reader/01_Simple_file_reader_using_IOFactory.php b/samples/Reader/01_Simple_file_reader_using_IOFactory.php
index 584fd5be..622df231 100644
--- a/samples/Reader/01_Simple_file_reader_using_IOFactory.php
+++ b/samples/Reader/01_Simple_file_reader_using_IOFactory.php
@@ -5,7 +5,7 @@ use PhpOffice\PhpSpreadsheet\IOFactory;
 require __DIR__ . '/../Header.php';
 
 $inputFileName = __DIR__ . '/sampleData/example1.xls';
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory to identify the format');
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory to identify the format');
 $spreadsheet = IOFactory::load($inputFileName);
 $sheetData = $spreadsheet->getActiveSheet()->toArray(null, true, true, true);
 var_dump($sheetData);
diff --git a/samples/Reader/02_Simple_file_reader_using_a_specified_reader.php b/samples/Reader/02_Simple_file_reader_using_a_specified_reader.php
index 9a705123..9d4ea686 100644
--- a/samples/Reader/02_Simple_file_reader_using_a_specified_reader.php
+++ b/samples/Reader/02_Simple_file_reader_using_a_specified_reader.php
@@ -5,7 +5,7 @@ use PhpOffice\PhpSpreadsheet\Reader\Xls;
 require __DIR__ . '/../Header.php';
 $inputFileName = __DIR__ . '/sampleData/example1.xls';
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using ' . Xls::class);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using ' . Xls::class);
 $reader = new Xls();
 $spreadsheet = $reader->load($inputFileName);
 
diff --git a/samples/Reader/03_Simple_file_reader_using_the_IOFactory_to_return_a_reader.php b/samples/Reader/03_Simple_file_reader_using_the_IOFactory_to_return_a_reader.php
index 305651de..47b5264c 100644
--- a/samples/Reader/03_Simple_file_reader_using_the_IOFactory_to_return_a_reader.php
+++ b/samples/Reader/03_Simple_file_reader_using_the_IOFactory_to_return_a_reader.php
@@ -7,7 +7,7 @@ require __DIR__ . '/../Header.php';
 $inputFileType = 'Xls';
 $inputFileName = __DIR__ . '/sampleData/example1.xls';
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
 $reader = IOFactory::createReader($inputFileType);
 $spreadsheet = $reader->load($inputFileName);
 
diff --git a/samples/Reader/04_Simple_file_reader_using_the_IOFactory_to_identify_a_reader_to_use.php b/samples/Reader/04_Simple_file_reader_using_the_IOFactory_to_identify_a_reader_to_use.php
index 98aabfc6..3a7dd065 100644
--- a/samples/Reader/04_Simple_file_reader_using_the_IOFactory_to_identify_a_reader_to_use.php
+++ b/samples/Reader/04_Simple_file_reader_using_the_IOFactory_to_identify_a_reader_to_use.php
@@ -7,9 +7,9 @@ require __DIR__ . '/../Header.php';
 $inputFileName = __DIR__ . '/sampleData/example1.xls';
 
 $inputFileType = IOFactory::identify($inputFileName);
-$helper->log('File ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' has been identified as an ' . $inputFileType . ' file');
+$helper->log('File ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' has been identified as an ' . $inputFileType . ' file');
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with the identified reader type');
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with the identified reader type');
 $reader = IOFactory::createReader($inputFileType);
 $spreadsheet = $reader->load($inputFileName);
 
diff --git a/samples/Reader/05_Simple_file_reader_using_the_read_data_only_option.php b/samples/Reader/05_Simple_file_reader_using_the_read_data_only_option.php
index d3ce9d82..912040a1 100644
--- a/samples/Reader/05_Simple_file_reader_using_the_read_data_only_option.php
+++ b/samples/Reader/05_Simple_file_reader_using_the_read_data_only_option.php
@@ -7,7 +7,7 @@ require __DIR__ . '/../Header.php';
 $inputFileType = 'Xls';
 $inputFileName = __DIR__ . '/sampleData/example1.xls';
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
 $reader = IOFactory::createReader($inputFileType);
 $helper->log('Turning Formatting off for Load');
 $reader->setReadDataOnly(true);
diff --git a/samples/Reader/06_Simple_file_reader_loading_all_worksheets.php b/samples/Reader/06_Simple_file_reader_loading_all_worksheets.php
index 5507c52b..247fef11 100644
--- a/samples/Reader/06_Simple_file_reader_loading_all_worksheets.php
+++ b/samples/Reader/06_Simple_file_reader_loading_all_worksheets.php
@@ -7,7 +7,7 @@ require __DIR__ . '/../Header.php';
 $inputFileType = 'Xls';
 $inputFileName = __DIR__ . '/sampleData/example1.xls';
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
 $reader = IOFactory::createReader($inputFileType);
 $helper->log('Loading all WorkSheets');
 $reader->setLoadAllSheets();
diff --git a/samples/Reader/07_Simple_file_reader_loading_a_single_named_worksheet.php b/samples/Reader/07_Simple_file_reader_loading_a_single_named_worksheet.php
index 142a17f8..a78de203 100644
--- a/samples/Reader/07_Simple_file_reader_loading_a_single_named_worksheet.php
+++ b/samples/Reader/07_Simple_file_reader_loading_a_single_named_worksheet.php
@@ -8,7 +8,7 @@ $inputFileType = 'Xls';
 $inputFileName = __DIR__ . '/sampleData/example1.xls';
 $sheetname = 'Data Sheet #2';
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
 $reader = IOFactory::createReader($inputFileType);
 $helper->log('Loading Sheet "' . $sheetname . '" only');
 $reader->setLoadSheetsOnly($sheetname);
diff --git a/samples/Reader/08_Simple_file_reader_loading_several_named_worksheets.php b/samples/Reader/08_Simple_file_reader_loading_several_named_worksheets.php
index 66efc3e0..0cc58518 100644
--- a/samples/Reader/08_Simple_file_reader_loading_several_named_worksheets.php
+++ b/samples/Reader/08_Simple_file_reader_loading_several_named_worksheets.php
@@ -8,7 +8,7 @@ $inputFileType = 'Xls';
 $inputFileName = __DIR__ . '/sampleData/example1.xls';
 $sheetnames = ['Data Sheet #1', 'Data Sheet #3'];
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
 $reader = IOFactory::createReader($inputFileType);
 $helper->log('Loading Sheet' . ((count($sheetnames) == 1) ? '' : 's') . ' "' . implode('" and "', $sheetnames) . '" only');
 $reader->setLoadSheetsOnly($sheetnames);
diff --git a/samples/Reader/09_Simple_file_reader_using_a_read_filter.php b/samples/Reader/09_Simple_file_reader_using_a_read_filter.php
index 04c47c64..4603164c 100644
--- a/samples/Reader/09_Simple_file_reader_using_a_read_filter.php
+++ b/samples/Reader/09_Simple_file_reader_using_a_read_filter.php
@@ -28,7 +28,7 @@ class MyReadFilter implements IReadFilter
 
 $filterSubset = new MyReadFilter();
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
 $reader = IOFactory::createReader($inputFileType);
 $helper->log('Loading Sheet "' . $sheetname . '" only');
 $reader->setLoadSheetsOnly($sheetname);
diff --git a/samples/Reader/10_Simple_file_reader_using_a_configurable_read_filter.php b/samples/Reader/10_Simple_file_reader_using_a_configurable_read_filter.php
index 6a600d43..82ca2234 100644
--- a/samples/Reader/10_Simple_file_reader_using_a_configurable_read_filter.php
+++ b/samples/Reader/10_Simple_file_reader_using_a_configurable_read_filter.php
@@ -40,7 +40,7 @@ class MyReadFilter implements IReadFilter
 
 $filterSubset = new MyReadFilter(9, 15, range('G', 'K'));
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
 $reader = IOFactory::createReader($inputFileType);
 $helper->log('Loading Sheet "' . $sheetname . '" only');
 $reader->setLoadSheetsOnly($sheetname);
diff --git a/samples/Reader/11_Reading_a_workbook_in_chunks_using_a_configurable_read_filter_(version_1).php b/samples/Reader/11_Reading_a_workbook_in_chunks_using_a_configurable_read_filter_(version_1).php
index 6c908703..cf070054 100644
--- a/samples/Reader/11_Reading_a_workbook_in_chunks_using_a_configurable_read_filter_(version_1).php
+++ b/samples/Reader/11_Reading_a_workbook_in_chunks_using_a_configurable_read_filter_(version_1).php
@@ -40,7 +40,7 @@ class ChunkReadFilter implements IReadFilter
     }
 }
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
 // Create a new Reader of the type defined in $inputFileType
 $reader = IOFactory::createReader($inputFileType);
 
diff --git a/samples/Reader/12_Reading_a_workbook_in_chunks_using_a_configurable_read_filter_(version_2).php b/samples/Reader/12_Reading_a_workbook_in_chunks_using_a_configurable_read_filter_(version_2).php
index c594c798..13692e3a 100644
--- a/samples/Reader/12_Reading_a_workbook_in_chunks_using_a_configurable_read_filter_(version_2).php
+++ b/samples/Reader/12_Reading_a_workbook_in_chunks_using_a_configurable_read_filter_(version_2).php
@@ -40,7 +40,7 @@ class ChunkReadFilter implements IReadFilter
     }
 }
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
 // Create a new Reader of the type defined in $inputFileType
 $reader = IOFactory::createReader($inputFileType);
 
diff --git a/samples/Reader/13_Simple_file_reader_for_multiple_CSV_files.php b/samples/Reader/13_Simple_file_reader_for_multiple_CSV_files.php
index d4817e30..9cba25a2 100644
--- a/samples/Reader/13_Simple_file_reader_for_multiple_CSV_files.php
+++ b/samples/Reader/13_Simple_file_reader_for_multiple_CSV_files.php
@@ -1,22 +1,21 @@
 <?php
 
-use PhpOffice\PhpSpreadsheet\IOFactory;
+use PhpOffice\PhpSpreadsheet\Reader\Csv;
 
 require __DIR__ . '/../Header.php';
 
-$inputFileType = 'Csv';
 $inputFileNames = [__DIR__ . '/sampleData/example1.csv', __DIR__ . '/sampleData/example2.csv'];
 
-$reader = IOFactory::createReader($inputFileType);
+$reader = new Csv();
 $inputFileName = array_shift($inputFileNames);
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' into WorkSheet #1 using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' into WorkSheet #1 using Csv Reader');
 $spreadsheet = $reader->load($inputFileName);
-$spreadsheet->getActiveSheet()->setTitle(pathinfo($inputFileName, PATHINFO_BASENAME));
+$spreadsheet->getActiveSheet()->setTitle(/** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME));
 foreach ($inputFileNames as $sheet => $inputFileName) {
-    $helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' into WorkSheet #' . ($sheet + 2) . ' using IOFactory with a defined reader type of ' . $inputFileType);
+    $helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' into WorkSheet #' . ($sheet + 2) . ' using Csv Reader');
     $reader->setSheetIndex($sheet + 1);
     $reader->loadIntoExisting($inputFileName, $spreadsheet);
-    $spreadsheet->getActiveSheet()->setTitle(pathinfo($inputFileName, PATHINFO_BASENAME));
+    $spreadsheet->getActiveSheet()->setTitle(/** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME));
 }
 
 $helper->log($spreadsheet->getSheetCount() . ' worksheet' . (($spreadsheet->getSheetCount() == 1) ? '' : 's') . ' loaded');
diff --git a/samples/Reader/14_Reading_a_large_CSV_file_in_chunks_to_split_across_multiple_worksheets.php b/samples/Reader/14_Reading_a_large_CSV_file_in_chunks_to_split_across_multiple_worksheets.php
index 87fbb225..eab7ec01 100644
--- a/samples/Reader/14_Reading_a_large_CSV_file_in_chunks_to_split_across_multiple_worksheets.php
+++ b/samples/Reader/14_Reading_a_large_CSV_file_in_chunks_to_split_across_multiple_worksheets.php
@@ -2,13 +2,12 @@
 
 namespace Samples\Sample14;
 
-use PhpOffice\PhpSpreadsheet\IOFactory;
+use PhpOffice\PhpSpreadsheet\Reader\Csv;
 use PhpOffice\PhpSpreadsheet\Reader\IReadFilter;
 use PhpOffice\PhpSpreadsheet\Spreadsheet;
 
 require __DIR__ . '/../Header.php';
 
-$inputFileType = 'Csv';
 $inputFileName = __DIR__ . '/sampleData/example2.csv';
 
 /**  Define a Read Filter class implementing IReadFilter  */
@@ -41,9 +40,9 @@ class ChunkReadFilter implements IReadFilter
     }
 }
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using Csv reader');
 // Create a new Reader of the type defined in $inputFileType
-$reader = IOFactory::createReader($inputFileType);
+$reader = new Csv();
 
 // Define how many rows we want to read for each "chunk"
 $chunkSize = 100;
diff --git a/samples/Reader/15_Simple_file_reader_for_tab_separated_value_file_using_the_Advanced_Value_Binder.php b/samples/Reader/15_Simple_file_reader_for_tab_separated_value_file_using_the_Advanced_Value_Binder.php
index 8213678a..848452c7 100644
--- a/samples/Reader/15_Simple_file_reader_for_tab_separated_value_file_using_the_Advanced_Value_Binder.php
+++ b/samples/Reader/15_Simple_file_reader_for_tab_separated_value_file_using_the_Advanced_Value_Binder.php
@@ -2,20 +2,19 @@
 
 use PhpOffice\PhpSpreadsheet\Cell\AdvancedValueBinder;
 use PhpOffice\PhpSpreadsheet\Cell\Cell;
-use PhpOffice\PhpSpreadsheet\IOFactory;
+use PhpOffice\PhpSpreadsheet\Reader\Csv;
 
 require __DIR__ . '/../Header.php';
 
 Cell::setValueBinder(new AdvancedValueBinder());
 
-$inputFileType = 'Csv';
 $inputFileName = __DIR__ . '/sampleData/example1.tsv';
 
-$reader = IOFactory::createReader($inputFileType);
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' into WorkSheet #1 using IOFactory with a defined reader type of ' . $inputFileType);
+$reader = new Csv();
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' into WorkSheet #1 using Csv reader');
 $reader->setDelimiter("\t");
 $spreadsheet = $reader->load($inputFileName);
-$spreadsheet->getActiveSheet()->setTitle(pathinfo($inputFileName, PATHINFO_BASENAME));
+$spreadsheet->getActiveSheet()->setTitle(/** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME));
 
 $helper->log($spreadsheet->getSheetCount() . ' worksheet' . (($spreadsheet->getSheetCount() == 1) ? '' : 's') . ' loaded');
 $loadedSheetNames = $spreadsheet->getSheetNames();
diff --git a/samples/Reader/16_Handling_loader_exceptions_using_TryCatch.php b/samples/Reader/16_Handling_loader_exceptions_using_TryCatch.php
index 5b102967..603f6cb8 100644
--- a/samples/Reader/16_Handling_loader_exceptions_using_TryCatch.php
+++ b/samples/Reader/16_Handling_loader_exceptions_using_TryCatch.php
@@ -6,7 +6,7 @@ use PhpOffice\PhpSpreadsheet\Reader\Exception as ReaderException;
 require __DIR__ . '/../Header.php';
 
 $inputFileName = __DIR__ . '/sampleData/non-existing-file.xls';
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory to identify the format');
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory to identify the format');
 
 try {
     $spreadsheet = IOFactory::load($inputFileName);
diff --git a/samples/Reader/17_Simple_file_reader_loading_several_named_worksheets.php b/samples/Reader/17_Simple_file_reader_loading_several_named_worksheets.php
index db30bff8..12c3c113 100644
--- a/samples/Reader/17_Simple_file_reader_loading_several_named_worksheets.php
+++ b/samples/Reader/17_Simple_file_reader_loading_several_named_worksheets.php
@@ -1,14 +1,13 @@
 <?php
 
-use PhpOffice\PhpSpreadsheet\IOFactory;
+use PhpOffice\PhpSpreadsheet\Reader\Xls;
 
 require __DIR__ . '/../Header.php';
 
-$inputFileType = 'Xls';
 $inputFileName = __DIR__ . '/sampleData/example1.xls';
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' using IOFactory with a defined reader type of ' . $inputFileType);
-$reader = IOFactory::createReader($inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' using Xls reader');
+$reader = new Xls();
 
 // Read the list of Worksheet Names from the Workbook file
 $helper->log('Read the list of Worksheets in the WorkBook');
diff --git a/samples/Reader/18_Reading_list_of_worksheets_without_loading_entire_file.php b/samples/Reader/18_Reading_list_of_worksheets_without_loading_entire_file.php
index bb58a2d5..6d2c3db9 100644
--- a/samples/Reader/18_Reading_list_of_worksheets_without_loading_entire_file.php
+++ b/samples/Reader/18_Reading_list_of_worksheets_without_loading_entire_file.php
@@ -1,15 +1,14 @@
 <?php
 
-use PhpOffice\PhpSpreadsheet\IOFactory;
+use PhpOffice\PhpSpreadsheet\Reader\Xls;
 
 require __DIR__ . '/../Header.php';
 
-$inputFileType = 'Xls';
 $inputFileName = __DIR__ . '/sampleData/example1.xls';
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' information using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' information using Xls reader');
 
-$reader = IOFactory::createReader($inputFileType);
+$reader = new Xls();
 $worksheetNames = $reader->listWorksheetNames($inputFileName);
 
 $helper->log('<h3>Worksheet Names</h3>');
diff --git a/samples/Reader/19_Reading_worksheet_information_without_loading_entire_file.php b/samples/Reader/19_Reading_worksheet_information_without_loading_entire_file.php
index 5cdc4988..369fff9a 100644
--- a/samples/Reader/19_Reading_worksheet_information_without_loading_entire_file.php
+++ b/samples/Reader/19_Reading_worksheet_information_without_loading_entire_file.php
@@ -1,15 +1,15 @@
 <?php
 
-use PhpOffice\PhpSpreadsheet\IOFactory;
+use PhpOffice\PhpSpreadsheet\Reader\Xls;
 
 require __DIR__ . '/../Header.php';
 
 $inputFileType = 'Xls';
 $inputFileName = __DIR__ . '/sampleData/example1.xls';
 
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' information using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' information using Xls reader');
 
-$reader = IOFactory::createReader($inputFileType);
+$reader = new Xls();
 $worksheetData = $reader->listWorksheetInfo($inputFileName);
 
 $helper->log('<h3>Worksheet Information</h3>');
diff --git a/samples/Reader/20_Reader_worksheet_hyperlink_image.php b/samples/Reader/20_Reader_worksheet_hyperlink_image.php
index 19d837a5..2b3f294a 100644
--- a/samples/Reader/20_Reader_worksheet_hyperlink_image.php
+++ b/samples/Reader/20_Reader_worksheet_hyperlink_image.php
@@ -13,6 +13,9 @@ $spreadsheet = new Spreadsheet();
 $aSheet = $spreadsheet->getActiveSheet();
 
 $gdImage = @imagecreatetruecolor(120, 20);
+if ($gdImage === false) {
+    throw new \Exception('imagecreatetruecolor failed');
+}
 $textColor = imagecolorallocate($gdImage, 255, 255, 255);
 imagestring($gdImage, 1, 5, 5, 'Created with PhpSpreadsheet', $textColor);
 
diff --git a/samples/Reader/21_Reader_CSV_Long_Integers_with_String_Value_Binder.php b/samples/Reader/21_Reader_CSV_Long_Integers_with_String_Value_Binder.php
index 2c80de3b..ec37b39a 100644
--- a/samples/Reader/21_Reader_CSV_Long_Integers_with_String_Value_Binder.php
+++ b/samples/Reader/21_Reader_CSV_Long_Integers_with_String_Value_Binder.php
@@ -12,10 +12,10 @@ $inputFileType = 'Csv';
 $inputFileName = __DIR__ . '/sampleData/longIntegers.csv';
 
 $reader = IOFactory::createReader($inputFileType);
-$helper->log('Loading file ' . pathinfo($inputFileName, PATHINFO_BASENAME) . ' into WorkSheet #1 using IOFactory with a defined reader type of ' . $inputFileType);
+$helper->log('Loading file ' . /** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME) . ' into WorkSheet #1 using IOFactory with a defined reader type of ' . $inputFileType);
 
 $spreadsheet = $reader->load($inputFileName);
-$spreadsheet->getActiveSheet()->setTitle(pathinfo($inputFileName, PATHINFO_BASENAME));
+$spreadsheet->getActiveSheet()->setTitle(/** @scrutinizer ignore-type */ pathinfo($inputFileName, PATHINFO_BASENAME));
 
 $helper->log($spreadsheet->getSheetCount() . ' worksheet' . (($spreadsheet->getSheetCount() == 1) ? '' : 's') . ' loaded');
 $loadedSheetNames = $spreadsheet->getSheetNames();