Soyuz rocket delivered to the launchpad by train. Public domain photo by NASA Slack uses PHP for most of its server-side application logic, which is an unusual choice these days. Why did we choose to build a new project in this language? Should you? Most programmers who have only casually used PHP know two things about it: that it is a bad language, which they would never use if given the choice;
![Taking PHP Seriously - Slack Engineering](https://cdn-ak-scissors.b.st-hatena.com/image/square/4cce12f4edd7cbfc2569bc1afb79ee2e722e08ea/height=288;version=1;width=512/https%3A%2F%2Fslack.engineering%2Fwp-content%2Fuploads%2Fsites%2F7%2F2020%2F05%2F1_x5N8tfTVEmQro2ySxoZtvw.jpeg)