1. Have you ever looked at the source code of the libraries/frameworks you use? A. Monolog, Dispatcher, League\Csv\Writer 2. How do you organize your code? A. 3. Describe two good uses - and practices - for callback usage. 4. HMVC Pros and Cons - HMVC can do anything that MVC can and more...one of… Continue reading Fundamental Question
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Here's a list of articles as to how to scale/designing your application architecture - Sharding Pinterest: How we scaled our MySQL fleet.
Read this. The basic idea is to count the number of unique users. Since the complexity of the problem grows with the users maintaining a count of unique users becomes a space issues. Apart from what's written in the blog I would suggest having a look at the hyeprloglog algo or having a bloom filer.… Continue reading Design a hit counter