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Filename : 28iterator.php
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<?php
/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2015 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package    PHPExcel
 * @copyright  Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version    ##VERSION##, ##DATE##
 */

/** Error reporting */
error_reporting(E_ALL);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);

define('EOL',(PHP_SAPI == 'cli') ? PHP_EOL : '<br />');

date_default_timezone_set('Europe/London');

/** PHPExcel_IOFactory */
require_once dirname(__FILE__) . '/../Classes/PHPExcel/IOFactory.php';


echo date('H:i:s') , " Load from Excel2007 file" , EOL;
$objReader = PHPExcel_IOFactory::createReader('Excel2007');
$objPHPExcel = $objReader->load("./templates/28iterators.xlsx");

echo date('H:i:s') , " Iterate worksheets by Row" , EOL;
foreach ($objPHPExcel->getWorksheetIterator() as $worksheet) {
	echo 'Worksheet - ' , $worksheet->getTitle() , EOL;

	foreach ($worksheet->getRowIterator() as $row) {
		echo '    Row number - ' , $row->getRowIndex() , EOL;

		$cellIterator = $row->getCellIterator();
		$cellIterator->setIterateOnlyExistingCells(false); // Loop all cells, even if it is not set
		foreach ($cellIterator as $cell) {
			if (!is_null($cell)) {
				echo '        Cell - ' , $cell->getCoordinate() , ' - ' , $cell->getCalculatedValue() , EOL;
			}
		}
	}
}


echo date('H:i:s') , " Iterate worksheets by Column" , EOL;
foreach ($objPHPExcel->getWorksheetIterator() as $worksheet) {
	echo 'Worksheet - ' , $worksheet->getTitle() , EOL;

	foreach ($worksheet->getColumnIterator() as $column) {
		echo '    Column index - ' , $column->getColumnIndex() , EOL;

		$cellIterator = $column->getCellIterator();
		$cellIterator->setIterateOnlyExistingCells(true); // Loop all cells, even if it is not set
		foreach ($cellIterator as $cell) {
			if (!is_null($cell)) {
				echo '        Cell - ' , $cell->getCoordinate() , ' - ' , $cell->getCalculatedValue() , EOL;
			}
		}
	}
}


// Echo memory peak usage
echo date('H:i:s') , " Peak memory usage: " , (memory_get_peak_usage(true) / 1024 / 1024) , " MB" , EOL;