102 lines
3.6 KiB
PHP
102 lines
3.6 KiB
PHP
<?php
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?>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>PHPExcel Reader Example #15</title>
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</head>
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<body>
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<h1>PHPExcel Reader Example #14</h1>
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<h2>Reading a Large CSV file in "Chunks" to split across multiple Worksheets</h2>
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<?php
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/** Include path **/
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set_include_path(get_include_path() . PATH_SEPARATOR . '../../../Classes/');
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/** \PhpOffice\PhpSpreadsheet\IOFactory */
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include 'PHPExcel/IOFactory.php';
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$inputFileType = 'CSV';
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$inputFileName = './sampleData/example2.csv';
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/** Define a Read Filter class implementing \PhpOffice\PhpSpreadsheet\Reader\IReadFilter */
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class chunkReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter
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{
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private $_startRow = 0;
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private $_endRow = 0;
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/** Set the list of rows that we want to read */
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public function setRows($startRow, $chunkSize)
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{
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$this->_startRow = $startRow;
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$this->_endRow = $startRow + $chunkSize;
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}
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public function readCell($column, $row, $worksheetName = '')
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{
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// Only read the heading row, and the rows that are configured in $this->_startRow and $this->_endRow
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if (($row == 1) || ($row >= $this->_startRow && $row < $this->_endRow)) {
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return true;
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}
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return false;
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}
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}
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echo 'Loading file ',pathinfo($inputFileName, PATHINFO_BASENAME),' using IOFactory with a defined reader type of ',$inputFileType,'<br />';
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/* Create a new Reader of the type defined in $inputFileType **/
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$objReader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
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echo '<hr />';
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/* Define how many rows we want to read for each "chunk" **/
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$chunkSize = 100;
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/* Create a new Instance of our Read Filter **/
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$chunkFilter = new chunkReadFilter();
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/* Tell the Reader that we want to use the Read Filter that we've Instantiated **/
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/* and that we want to store it in contiguous rows/columns **/
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$objReader->setReadFilter($chunkFilter)
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->setContiguous(true);
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/* Instantiate a new PHPExcel object manually **/
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$spreadsheet = new PHPExcel();
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/* Set a sheet index **/
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$sheet = 0;
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/* Loop to read our worksheet in "chunk size" blocks **/
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/** $startRow is set to 2 initially because we always read the headings in row #1 **/
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for ($startRow = 2; $startRow <= 240; $startRow += $chunkSize) {
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echo 'Loading WorkSheet #',($sheet + 1),' using configurable filter for headings row 1 and for rows ',$startRow,' to ',($startRow + $chunkSize - 1),'<br />';
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/* Tell the Read Filter, the limits on which rows we want to read this iteration **/
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$chunkFilter->setRows($startRow, $chunkSize);
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/* Increment the worksheet index pointer for the Reader **/
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$objReader->setSheetIndex($sheet);
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/* Load only the rows that match our filter into a new worksheet in the PHPExcel Object **/
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$objReader->loadIntoExisting($inputFileName, $spreadsheet);
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/* Set the worksheet title (to reference the "sheet" of data that we've loaded) **/
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/* and increment the sheet index as well **/
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$spreadsheet->getActiveSheet()->setTitle('Country Data #' . (++$sheet));
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}
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echo '<hr />';
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echo $spreadsheet->getSheetCount(),' worksheet',(($spreadsheet->getSheetCount() == 1) ? '' : 's'),' loaded<br /><br />';
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$loadedSheetNames = $spreadsheet->getSheetNames();
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foreach ($loadedSheetNames as $sheetIndex => $loadedSheetName) {
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echo '<b>Worksheet #',$sheetIndex,' -> ',$loadedSheetName,'</b><br />';
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$spreadsheet->setActiveSheetIndexByName($loadedSheetName);
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$sheetData = $spreadsheet->getActiveSheet()->toArray(null, false, false, true);
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var_dump($sheetData);
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echo '<br />';
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}
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?>
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<body>
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</html>
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