MongoDB

 MongoDB is an open source, document-based database management system that does not require a table schema description. MongoDB - classified as NoSQL and uses JSON-like documents and a database schema. If all four previous DBMSs are well known to most IT professionals, then few have heard of MongoDB. But she confidently takes the 5th line in almost all ratings. And as a result, in our ranking, she also occupies the 5th position.

PHP






PHP is a scripting programming language. It is actively used for developing web applications. The vast majority of sites on the Internet, in terms of functionality (Back-end), are implemented in PHP.


The well-known CMS WordPress and Joomla are developed in PHP. Therefore, there is no doubt about the popularity of this language.


Most programmers start their journey with PHP, as there are a huge number of freelance offers to work with the PHP language.