php - is str_random unique in laravel? -

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i use str_random(60) function generate password reset code. question if thousand of people asked resetting password code unique or duplicated?

public function postforgotpassword(){      $validator = validator::make(input::all(), array('email'=>'required|email'));      if($validator->fails()){          return redirect::route('account-forgot-password')->witherrors($validator)->withinput();     }else{          $user= user::where('email', '=', input::get('email'));          if($user->count()){              $user = $user->first();              $code = str_random(60);             $password = str_random(10);              $user->code = $code;             $user->password_temp = hash::make($password);              if($user->save()){                  mail::send('emails.auth.forgot', array('link'=>url::route('account-recover', $code), 'username'=>$user->username,'password'=>$password), function($message) use($user)                      {$message->to($user->email, $user->username)->subject('your new pass');                      });                      return redirect::route('home')->with('global', 'we have sent new password');               }         }      }      return redirect::route('account-change-password')->with('global', 'could not reset password'); }   public function getrecover($code){      $user = user::where('code', '=', $code)->where('password_temp', '!=', '');      if($user->count()){          $user = $user->first();          $user->password = $user->password_temp;         $user->password_temp = '';         $user->code = '';          if($user->save()){              return redirect::route('home')->with('global', 'your account has been recoverd');          }      }      return redirect::route('home')->with('global','could not recover password'); }

there shouldn't issue, since password reset code should tied user account anyway, making composite key, , therefore unique.

all needs random, not unique string, since user should have enter email address password reset code in order work. if bob , james both has reset string of 12345, them entering not conflict, since bob enter bob@example.com 12345 , james enter james@acme.com 12345; therefore both unique.

that not shouldn't have random strings, should. string should never guessable. whether unique, not matter.


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