Indexing and index processes were introduced in Magento since version 1.4.x. Here is how you can set one index to ‘REINDEX REQUIRED’ with code programmatically.
For the last five years or so I have been using Firefox religiously for web development. I mean, there is no other browser that gets the job done better or has better tools to gain visibility of what lies under the hood, right? That is what I thought until I gave it a try just recently. In fact, I just found several chrome extensions that can get the job done and even offer more functionality than what I was used to with the Firefox extensions.