Do not use arr_* or str_* helpers

app/Models/Invite.php

@@ -13,6 +13,7 @@ namespace CachetHQ\Cachet\Models;
 
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Notifications\Notifiable;
+use Illuminate\Support\Str;
 
 /**
  * This is the invite class.
@@ -51,7 +52,7 @@ class Invite extends Model
 
         self::creating(function ($invite) {
             if (!$invite->code) {
-                $invite->code = str_random(20);
+                $invite->code = Str::random(20);
             }
         });
     }

app/Models/Subscriber.php

@@ -16,6 +16,7 @@ use CachetHQ\Cachet\Presenters\SubscriberPresenter;
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Notifications\Notifiable;
+use Illuminate\Support\Str;
 use McCool\LaravelAutoPresenter\HasPresenter;
 
 /**
@@ -166,7 +167,7 @@ class Subscriber extends Model implements HasPresenter
      */
     public static function generateVerifyCode()
     {
-        return str_random(42);
+        return Str::random(42);
     }
 
     /**

app/Models/User.php

@@ -18,6 +18,7 @@ use Illuminate\Database\Eloquent\Model;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
 use Illuminate\Support\Facades\Hash;
+use Illuminate\Support\Str;
 use McCool\LaravelAutoPresenter\HasPresenter;
 
 /**
@@ -188,7 +189,7 @@ class User extends Authenticatable implements HasPresenter
      */
     public static function generateApiKey()
     {
-        return str_random(20);
+        return Str::random(20);
     }
 
     /**