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Filename : CSVHandler.php

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<?php

/**
 * Library For All Util Tasks Related To Sessions
 *
 * @author Softpro India Pvt. Ltd.
 */
defined('BASEPATH') OR exit('No direct script access allowed');

class CSVHandler {
    
    public static function readCSV($filePointer) {
        $csv_data = [];
        if (($handler = fopen("{$filePointer}", "r")) !== FALSE) {
            while (($data = fgetcsv($handler, 1000, ",")) !== FALSE) {
                $csv_data[] = $data;
            }
            fclose($handler);
        }
        return $csv_data;
    }

    public static function writeCSV($csvFileNameAndPath, $csvContents, $isNew) {
        if($isNew){
            $new_csv = fopen($csvFileNameAndPath, 'w');
        }else{
            $new_csv = fopen($csvFileNameAndPath, 'a');
        }
        fputcsv($new_csv, $csvContents);
        fclose($new_csv);
    }

}