What do you think about PHP trends in 2017?

You think Frameworks like Laravel,Symfony, Yii will help keep PHP a major programming language?

No. If anything, 2 out of the 3 mentioned are having a bad effect.

Oh man, out of curiosity, I gotta ask which one you think is having a positive effect on the PHP language and/or community and your reasoning behind it. I've used Laravel and Symfony and have gripes with both, I've never used Yii so I can't give an accurate opinion on it.

Anything that solves a unique problem and doesn't try to be the framework to end all frameworks.

In most cases that's individual libraries, not full-scale frameworks.