<?php
use PhpOffice\PhpSpreadsheet\IOFactory;
use PhpOffice\PhpSpreadsheet\Reader\IReadFilter;
error_reporting(E_ALL);
set_time_limit(0);
date_default_timezone_set('Europe/London');
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>PhpSpreadsheet Reader Example #12</title>
</head>
<body>
<h1>PhpSpreadsheet Reader Example #12</h1>
<h2>Reading a Workbook in "Chunks" Using a Configurable Read Filter (Version 2)</h2>
<?php
require_once __DIR__ . '/../../../src/Bootstrap.php';
$inputFileType = 'Xls';
$inputFileName = './sampleData/example2.xls';
/** Define a Read Filter class implementing IReadFilter */
class chunkReadFilter implements IReadFilter
{
private $_startRow = 0;
private $_endRow = 0;
/**
* Set the list of rows that we want to read.
*
* @param mixed $startRow
* @param mixed $chunkSize
*/
public function setRows($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 * */
$reader = IOFactory::createReader($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 PhpSpreadsheet Object * */
$spreadsheet = $reader->load($inputFileName);
// Do some processing here
$sheetData = $spreadsheet->getActiveSheet()->toArray(null, true, true, true);
var_dump($sheetData);
echo '<br /><br />';
}
?>
<body>
</html>