File csv

gistfile1.txt

class CsvFile
{
    private $file;
    private $delimiter = "\t";

    public function __construct(string $file)
    {
        $this->file = $file;
    }

    public function parse($code)
    {
        $result['double'] = false;
        if (($file = fopen($this->file, "r")) !== FALSE) {
            while (($data = fgetcsv($file, 100, $this->delimiter)) !== FALSE) {
                if (current($data) === $code) {
                    $result['double'] = true;
                    fclose($file);
                    break;
                }
            }
            fclose($file);
        }

        $result['handle'] = $file;

        return $result;
    }

    public function getNumRows()
    {
        $count = 0;
        if (($file = fopen($this->file, "r")) !== FALSE) {
            while (($data = fgetcsv($file, 100, $this->delimiter)) !== FALSE) {
                if (!empty(current($data))) {
                    $count++;
                }
            }
            fclose($file);
        }

        return $count;
    }

    public function save($code)
    {
        $file = fopen($this->file, 'a+');
        fputcsv($file, [$code], $this->delimiter);
        fclose($file);
    }
}