在CodeIgniter中使用PHPExcel从Excel读取数据

我正在使用PHPExcel从CodeIgniter中的Excel文件中读取数据。在将PHPExcel提供的以下示例集成到其文档中时存在问题

下面是示例中的代码：

<?php

/** Include path **/
set_include_path(get_include_path() . PATH_SEPARATOR . '../../../Classes/');

/** PHPExcel_IOFactory */
include 'PHPExcel/IOFactory.php';


$inputFileType = 'Excel5';
//  $inputFileType = 'Excel2007';
//  $inputFileType = 'Excel2003XML';
//  $inputFileType = 'OOCalc';
//  $inputFileType = 'Gnumeric';
$inputFileName = './sampleData/example1.xls';
$sheetname = 'Data Sheet #3';


class MyReadFilter implements PHPExcel_Reader_IReadFilter
{
    public function readCell($column, $row, $worksheetName = '') {
        // Read rows 1 to 7 and columns A to E only
        if ($row >= 1 && $row <= 7) {
            if (in_array($column,range('A','E'))) {
                return true;
            }
        }
        return false;
    }
}

$filterSubset = new MyReadFilter();

echo 'Loading file ',pathinfo($inputFileName,PATHINFO_BASENAME),' using IOFactory with a defined reader type of ',$inputFileType,'<br />';
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
echo 'Loading Sheet "',$sheetname,'" only<br />';
$objReader->setLoadSheetsOnly($sheetname);
echo 'Loading Sheet using filter<br />';
$objReader->setReadFilter($filterSubset);
$objPHPExcel = $objReader->load($inputFileName);

echo '<hr />';

$sheetData = $objPHPExcel->getActiveSheet()->toArray(null,true,true,true);
var_dump($sheetData);

?>

我该如何着手解决这个问题

public function importFromExcel() 
{
$this->load->library('excel');

$this->load->library('Excel/MyReadFilter');

$inputFileType = 'Excel5';
//  $inputFileType = 'Excel2007';
$inputFileName = FCPATH.'uploads/khanas.xlsx';
$sheetname = 'Sheet1';

$filterSubset = new MyReadFilter();

echo 'Loading file ',pathinfo($inputFileName,PATHINFO_BASENAME),' using IOFactory with a defined reader type of ',$inputFileType,'<br />';
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
echo 'Loading Sheet "',$sheetname,'" only<br />';
$objReader->setLoadSheetsOnly($sheetname);
echo 'Loading Sheet using filter<br />';
$objReader->setReadFilter($filterSubset);
$objPHPExcel = $objReader->load($inputFileName);


echo '<hr />';

$sheetData = $objPHPExcel->getActiveSheet()->toArray(null,true,true,true);
var_dump($sheetData);
}

class MyReadFilter implements PHPExcel_Reader_IReadFilter
{
public function readCell($column, $row, $worksheetName = '') {
    $startRow   = 1;
    $endRow     = 7;
    $startCol   = 'A';
    $endCol     = 'E';

    // Read rows 1 to 7 and columns A to E only
    if ($row >= $startRow && $row <= $endRow) {
        if (in_array($column,range($startCol,$endCol))) {
            return true;
        }
    }
    return false;
}
}

$this->load->library('Excel/MyReadFilter');