PostgreSQL 9.5 Released
iamvego writes: Later than the typical release cadence, PostgreSQL 9.5 has finally been released, and brings with it a slew of new features including UPSERT functionality, row-level security, and some big data features (CUBE/ROLLUP, join pushdown for foreign data wrappers, TABLESAMPLE, BRIN indexing and more). The previous release had brought about some new JSON functions and operators, but they only queried the data; 9.5 comes with new operators which now allow modification of JSON values, so it no longer has to be manipulated outside of the database. PostgreSQL's wiki has a more detailed overview of the new features.
Why not just use MySQL? It's free and PHP is built for it so you can run web applications on it.
How is PHP built for MySQL? PHP isn't built for MySQL. PHP can use MySQL. In the same way, PHP can use PostgreSQL. And in the same way, you run web applications on it.
I've been using PHP and PostgreSQL for dozens of web applications for over a decade.