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.
Engineer - Etsy Inc.
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.