PHP is one of the most popular languages for Web development, Many programmers think that PHP has gone out of favor for serious applications — but remember that WordPress powers a huge proportion of the Web, and it’s written in PHP. (Plus, you have companies such as Facebook that are using languages related to PHP.)  PHP 7 includes a huge number of optimizations and language improvements. If you’re a PHP developer, then you’ll definitely want to watch Erika Heidi‘s talk, in which she describes the changes included in this latest version,