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error_reporting(E_ALL);
set_time_limit(0);
date_default_timezone_set('Europe/London');
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<title>PHPExcel Reader Example #12</title>
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<h1>PHPExcel Reader Example #12</h1>
<h2>Reading a Workbook in "Chunks" Using a Configurable Read Filter (Version 2)</h2>
<?php
/** Set Include path to point at the PHPExcel Classes folder **/
set_include_path(get_include_path() . PATH_SEPARATOR . '../../../Classes/');
/** Include \PhpOffice\PhpSpreadsheet\IOFactory **/
include 'PHPExcel/IOFactory.php';
$inputFileType = 'Xls';
// $inputFileType = 'Xlsx';
// $inputFileType = 'Excel2003XML';
// $inputFileType = 'Ods';
// $inputFileType = 'Gnumeric';
$inputFileName = './sampleData/example2.xls';
/** Define a Read Filter class implementing \PhpOffice\PhpSpreadsheet\Reader\IReadFilter */
class chunkReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter
{
private $_startRow = 0;
private $_endRow = 0;
/** Set the list of rows that we want to read */
public function setRows($startRow, $chunkSize)
{
$this->_startRow = $startRow;
$this->_endRow = $startRow + $chunkSize;
}
public function readCell($column, $row, $worksheetName = '')
{
// Only read the heading row, and the rows that are configured in $this->_startRow and $this->_endRow
if (($row == 1) || ($row >= $this->_startRow && $row < $this->_endRow)) {
return true;
}
return false;
}
}
echo 'Loading file ',pathinfo($inputFileName, PATHINFO_BASENAME),' using IOFactory with a defined reader type of ',$inputFileType,'<br />';
/* Create a new Reader of the type defined in $inputFileType **/
$reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
echo '<hr />';
/* Define how many rows we want to read for each "chunk" **/
$chunkSize = 20;
/* Create a new Instance of our Read Filter **/
$chunkFilter = new chunkReadFilter();
/* Tell the Reader that we want to use the Read Filter that we've Instantiated **/
$reader->setReadFilter($chunkFilter);
/* Loop to read our worksheet in "chunk size" blocks **/
for ($startRow = 2; $startRow <= 240; $startRow += $chunkSize) {
echo 'Loading WorkSheet using configurable filter for headings row 1 and for rows ',$startRow,' to ',($startRow + $chunkSize - 1),'<br />';
/* Tell the Read Filter, the limits on which rows we want to read this iteration **/
$chunkFilter->setRows($startRow, $chunkSize);
/* Load only the rows that match our filter from $inputFileName to a PHPExcel Object **/
$spreadsheet = $reader->load($inputFileName);
// Do some processing here
$sheetData = $spreadsheet->getActiveSheet()->toArray(null, true, true, true);
var_dump($sheetData);
echo '<br /><br />';
}
?>
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