The increment in ArrayStore

[LaoQi]

• Laravel Version: lastest
• PHP Version:7.0
• Database Driver & Version:

Description:

The method increment in cache\ArrayStore has a bug that array index out of range

 public function increment($key, $value = 1)
    {
        // $key not exist
        // if (!isset($this->storage[$key])) $this->storage[$key] = 0;
        $this->storage[$key] = ((int) $this->storage[$key]) + $value;

        return $this->storage[$key];
    }

https://github.com/laravel/framework/blob/5.4/src/Illuminate/Cache/ArrayStore.php#L53

[themsaid]

handled in #20156

Thanks :)