Question

我想保存独特的优惠券代码以及字符和数字的组合，它应该是6个长度。我正在使用Laravel Framework 5.2

enter code here
$data = $request->all();
        unset($data['_token']);
        //echo "<pre>"; print_r($data); die;
        for ($i=1; $i <=$data['countvoucher']; $i++) { 
            $voucher = new Voucher;
            $voucher->code = "123456";// it should be dynamic and unique
            $voucher->percentage = $data['percentage'];
            $voucher->usage  = $data['usage'];
            $voucher->expirydate = $data['expirydate'];
            $voucher->save();
        }

$ voucher-＆gt;代码我想保存在此档案中，任何人都可以帮助我

Answer 1

我正在使用此功能你可以像下面的那样使用它

 $voucher->code = $this->generateRandomString(6);// it should be dynamic and unique 

public  function generateRandomString($length = 20) {
        $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
        $charactersLength = strlen($characters);
        $randomString = '';
        for ($i = 0; $i < $length; $i++) {
            $randomString .= $characters[rand(0, $charactersLength - 1)];
        }
        return $randomString;
    }

Answer 2

您可以使用Laravel的内置辅助方法https://tomcat.apache.org/tomcat-8.0-doc/config/ajp.html来生成更真实的＆＃34;随机＆＃34;字母数字字符串为：

str_random

random_bytes函数生成指定长度的随机字符串。此函数使用PHP的$voucher->code = str_random(6);函数。

所以你的最终代码将是：

{{1}}

Answer 3

  private static function generateNumber()
    {
        $number = Str::random(9);
        if (self::where('number', $number)->count() > 0) self::generateNumber();
        return $number;
    }

Answer 4

以下是此代码

SELECT isteksikayet.BASVURU_NO AS BasvuruNo, isteksikayet.BASVURU_TARIHI AS BasvuruTarihi, mahalle.ad AS MahalleAdi, konular.ADI AS KonuAdi, 
sonucturleri.ADI AS Durum, isteksikayetdetay.GUNCELLEME_TARIHI AS BilgiTarihi, birimler.ad AS BirimAdi 

FROM isb_istek_sikayet isteksikayet
INNER JOIN tbl_sistem_mahalle mahalle
ON isteksikayet.MAHALLE_KODU = mahalle.kod 
INNER JOIN isb_konular konular
ON isteksikayet.KONU_KODU = konular.KODU
INNER JOIN isb_istek_sikayet_detay isteksikayetdetay
ON isteksikayet.BASVURU_NO = isteksikayetdetay.BASVURU_NO
INNER JOIN isb_sonuc_turleri sonucturleri
ON isteksikayetdetay.SONUC_KODU = sonucturleri.KODU
INNER JOIN mubim_birim birimler
ON isteksikayetdetay.DAIRE_KODU = birimler.kod
ORDER BY BasvuruNo DESC LIMIT 10;

使用

替换代码中的这一行

$chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$code = "";
for ($i = 0; $i < 6; $i++) {
    $code .= $chars[mt_rand(0, strlen($chars)-1)];
}

我希望这会起作用

修改

您也可以尝试其他方式

$voucher->code = $code;// it should be dynamic and unique

对于长度约束，试试这个

$code = strtoupper(uniqid()); // if you dont have any restriction on length of code

如何在laravel 5.2中生成唯一的凭证代码？

4 个答案: