(need explanation) spout reader documentation - codeigniter

Question

can someone help me with this spout documentation,
use Box\Spout\Reader\Common\Creator\ReaderEntityFactory;
$reader = ReaderEntityFactory::createReaderFromFile('/path/to/file.ext');
$reader->open($filePath);
foreach ($reader->getSheetIterator() as $sheet) {
foreach ($sheet->getRowIterator() as $row) {
// do stuff with the row
$cells = $row->getCells();
...
}
}
$reader->close();
what i don't get is :
What should i do with ('/path/to/file.ext')
where do the $filePath come from ? do we need to create a variable named $filePath which will directing to the temporary uploaded file ?
I have read the docimentation and i still don't get it
I also tried to implement it with code igniter, here's my code :
require_once APPPATH.'third_party\spout\src\Spout\Autoloader\autoload.php';
use Box\Spout\Reader\Common\Creator\ReaderEntityFactory;
class Excel extends CI_Controller {
//==========================================================
// C O N S T R U C T O R
//==========================================================
public function __construct()
{
parent::__construct();
$this->load->model('Excel_model');
}
public function index()
{
$reader = ReaderEntityFactory::createReaderFromFile('/path/to/file.ext');
$filePath = APPPATH.'third_party\spout\src\temp\test.xlsx';
$reader->open($filePath);
foreach ($reader->getSheetIterator() as $sheet) {
foreach ($sheet->getRowIterator() as $row) {
// do stuff with the row
$cells = $row->getCells();
echo $cells;
}
}
$reader->close();
}
}
and got this error message instead :
An uncaught Exception was encountered
Type: Box\Spout\Common\Exception\UnsupportedTypeException
Message: No readers supporting the given type: ext
Filename: D:\ONNE\OTHERS\_CODING_PROGRAMMING\XAMPP\htdocs\bulus-ci\application\third_party\spout\src\Spout\Reader\Common\Creator\ReaderFactory.php
Line Number: 59
Backtrace:
File: D:\ONNE\OTHERS\_CODING_PROGRAMMING\XAMPP\htdocs\bulus-ci\application\third_party\spout\src\Spout\Reader\Common\Creator\ReaderFactory.php
Line: 42
Function: createFromType
File: D:\ONNE\OTHERS\_CODING_PROGRAMMING\XAMPP\htdocs\bulus-ci\application\third_party\spout\src\Spout\Reader\Common\Creator\ReaderEntityFactory.php
Line: 24
Function: createFromFile
File: D:\ONNE\OTHERS\_CODING_PROGRAMMING\XAMPP\htdocs\bulus-ci\application\controllers\Excel.php
Line: 20
Function: createReaderFromFile
File: D:\ONNE\OTHERS\_CODING_PROGRAMMING\XAMPP\htdocs\bulus-ci\index.php
Line: 315
Function: require_once

Answer 1

File path is a string pointing to the spreadsheet you're trying to read. You need to define it and pass it to Spout this way:
use Box\Spout\Reader\Common\Creator\ReaderEntityFactory;
$filePath = APPPATH.'third_party\spout\src\temp\test.xlsx';
$reader = ReaderEntityFactory::createReaderFromFile($filePath);
$reader->open($filePath);
foreach ($reader->getSheetIterator() as $sheet) {
foreach ($sheet->getRowIterator() as $row) {
// do stuff with the row
$cells = $row->getCells();
...
}
}
$reader->close();
Can you give it a try?