Light weight curl request library by http://www.codeitnow.in, It has setters and getters to make easy to use. You can use Curl Request with any framework like Symfony, Laravel, CackPHP, CodeIgniter, Yii etc. This is alternate of Guzzle and other libraries.
A Guzzle middleware that can throttle requests according to (multiple) defined rules. It is also possible to define a caching strategy, e.g. get response from cache when rate limit is exceeded or always get cached value to spare your rate limits.