Magento2 read uploaded csv file - file-upload

Question

I have upload CSV file but problem is i don't know how to read data of uploaded csv file in Magento2.
Please help me anyone.
Thanks in advance.

Answer 1

You can do that like you could in Magento 1. In Magento 1 you would use
new Varien_File_Csvbut in Magento 2 you can do the same with \Magento\Framework\File\Csv. You can use the following code.
In your __construct() inject the following classes:
protected $_fileCsv;
public function __construct(
\Magento\Backend\App\Action\Context $context,
\Magento\Framework\Module\Dir\Reader $moduleReader,
\Magento\Framework\File\Csv $fileCsv
) {
$this->_moduleReader = $moduleReader;
$this->_fileCsv = $fileCsv;
parent::__construct($context); // If your class doesn't have a parent, you don't need to do this, of course.
}
Then you can use it like this:
// This is the directory where you put your CSV file.
$directory = $this->_moduleReader->getModuleDir('etc', 'Vendor_Modulename');
// This is your CSV file.
$file = $directory . '/your_csv_file_name.csv';
if (file_exists($file)) {
$data = $this->_fileCsv->getData($file);
// This skips the first line of your csv file, since it will probably be a heading. Set $i = 0 to not skip the first line.
for($i=1; $i<count($data); $i++) {
var_dump($data[$i]); // $data[$i] is an array with your csv columns as values.
}
}