[svennek]

PHP is old tech, but works fine.

The language api is somewhat inconsistent due to legacy weaknesses and compatibility.

That said, I prefer old-style PHP (like it was written in version 5ish) instead of the new object orienteted/composer/micro-library stuff (that I consider the javascript virus).

Having moved away from PHP a decade ago, I recently had to update some old code (that I had written originally). And even with almost a decade of not using php, the experience was pleasurable enough.

As a senior the TLDR is: The PHP language itself is fine, the actual code base itself means more (and can either be fine or not), but in the end it is the work environment (do you like your coworkers, bosses and are the time constraints reasonable) that mean the most.

Regarding your CV, I would always prefer a candidate with production experiences in (at least) two different environments to a "one trick pony", so I have a hard time seeing that it could hurt you.