HHVM is a popular alternative to the official PHP server implementation. With the launch of PHP 7 the main official implementation will get improved perfomance, but new language features too. HHVM plans to keep up feature parity with PHP, but with the investment in Hack language picking up PHP 7 support will take it's time.
Elasticsearch is another alternative for Solr for creating sophisticated search functionalities for applications. Both Solr and Elasticsearch are based on the Lucene search technology with is built with Java. They are layers on top of Lucene to ease the usability of the lower level technology.
Safari on the original iPhone revolutionised the mobile web back in 2007. Applications such as Opera Mini made feature phone browsing possible on feature phones, but the experiences were subpar compared to even the first mobile Safari. Since that a lot of cash has flowed through Cupertino and Safari has accused of lagging.
Graph databases are popping up everywhere. During the 2016 they're bound to come up even more and will probably reach mainstream acceptance such as NoSQL Document Databases did a few years back. RDF and the Semantic web have held the promise of powerful graph data for a long time, but have not become a staple for web developers.
Last week there was interesting news about OpenCypher, HHVM and LLVM and React Forms.
A few years back it felt like SQL was on it's way to the grave. Everyone was talking about how all kinds of NoSQL solutions were the absolute future and the solutions to all of life's problems. It felt like everything would be NoSQL in 2015
Now that even Drupal is popularising GraphQL, the Facebook driven Query Language for Graph Databases, it's time to take a closer look at how to apply it in practise.