PHP

Laravel Read CSV File

 if (!empty($request->files) && $request->hasFile('csv_file')) {
                $file = $request->file('csv_file');
                $type = $file->getClientOriginalExtension();
                $real_path = $file->getRealPath();
                if ($type <> 'csv') {
                    Alert::error('Wrong file extension', 'Only CSV is allowed')->persistent('close');
                    return redirect()->back();
                }
                $data = $this->readCSV($real_path, array('delimiter' => ','));
            }

laravel import data from csv

function csvToArray($filename = '', $delimiter = ',')
{
    if (!file_exists($filename) || !is_readable($filename))
        return false;

    $header = null;
    $data = array();
    if (($handle = fopen($filename, 'r')) !== false)
    {
        while (($row = fgetcsv($handle, 1000, $delimiter)) !== false)
        {
            if (!$header)
                $header = $row;
            else
                $data[] = array_combine($header, $row);
        }
        fclose($handle);
    }

    return $data;
}

how can we merge csv file in laravel

<?php
function joinFiles(array $files, $result) {
    if(!is_array($files)) {
        throw new Exception('`$files` must be an array');
    }

    $wH = fopen($result, "w+");

    foreach($files as $file) {
        $fh = fopen($file, "r");
        while(!feof($fh)) {
            fwrite($wH, fgets($fh));
        }
        fclose($fh);
        unset($fh);
        fwrite($wH, "
"); //usually last line doesn't have a newline
    }
    fclose($wH);
    unset($wH);
}