# laravel 產生隨機字串
###### tags: `laravel` `string` `random`

use Illuminate\Support\Str;

Str::random(); // 隨機產生數字 + 英文大小寫 共16個字元組成的字串

Str::random('6'); // 產生指定長度(6)的字串

## 範例
:::info

Route::get('/test',function(){
    for($i=0;$i<10;$i++){
        $random = Str::random();
        echo "<pre>$random</pre>";
    }
});

#### result:
Qn60rFlVeJgQjGKU
E91l5uuSeQRxdo2v
uI19JbFWWPKuxdd4
ZVhR1BNL26rhdRdv
8wYpoQNBxdR5EifM
V8NHLOZ1wJCwyd3b
MmIsnmPj9Sf6AisH
MYRf3Rc5Z7OvDYTY
86KQNW7kOOifZQfy
QN3ZZoomB3QBCshO
:::

### 指定長度，測試目標為7碼
:::info

Route::get('/test',function(){
    for($i=0;$i<10;$i++){
        $random = Str::random('7');
        echo "<pre>$random</pre>";
    }
});

#### result:

XQocvct
ThRpcSw
FGKOXLN
zG7qg9B
UZux4Pv
U11Zmwv
20vaBcc
1kkVtDn
avuzi7g
mko2qa6
:::

參考資料
[Helpers - Laravel](https://laravel.com/docs/8.x/helpers#method-str-random)