PHP in 2019
The version of PHP you are running is likely too old. There are some extremely good reasons to upgrade. The performance alone should convince you, if not, I have a few other tricks up my sleeve to try to win you over. Performance optimization, static analysis, zero-cost profiling, dead code elimination and escape analysis are just some of the concepts that will be covered.
Rasmus Lerdorf is known for having gotten the PHP project off the ground in 1995 and has contributed to a number of other open source projects over the years. He was an infrastructure architect at Yahoo! for more than 7 years and joined Etsy in 2012. He was born in Greenland, grew up in Denmark and Canada and has a Systems Design engineering degree from the University of Waterloo. You can follow @rasmus on Twitter.