Some questions about CodeIgniter (not CI4)

Hello,

I lot a friends says me: 

Itsn't secure, beacause: "XSS is filter only at the entrance and not output. Filter the entire input HTML in the database that is chaotic and it does not allow any alternative filtering." I think CI3 is a "Safe disaster.".

He continued "The community dies, because the community to quickly migrate to Laravel, Symfony, Yii, CakePHP, because with a little good will and even by not complying with the standards, we arrive at a similar result with almost three CI times less restriction and faster".


He share me some articles:

• https://www.sitepoint.com/community/t/i-...ice/113413
  
• http://mulzer.tumblr.com/post/2414199311...igniter-to
  
• https://philsturgeon.uk/codeigniter/2012...a-rewrite/
  
• https://thecelavi.wordpress.com/2014/01/...deigniter/
  

He sais "He said that no standard does codeigniter respect." & "CodeIgniter does not contain any class naming convention.".

He ends by saying "Using codeigniter can not qualify PHP developer with the ability to object".

Why ? I don't know.

I have somequestions so:

1. Why not make codeigniter respects the standards?
   
2. Why codeigniter is frowned upon by many?
   
3. Is the other who is wrong, or do we question ourselves.
   
4. Is that with CodeIgniter 4, we will finally be able to take the place we deserve? Or is what we as users codeigniter, we will continue to be denigrated.
   
5. My impression, reading other than codeigniter is breathless. It gets to the end. Should we migrate framework?
   

Sorry, I'm French, i using Google Translate.

Just, if you can answer me ... :/

Thanks, Dylan.

[Image: http://pixelcloud.dylanskiba.fr/fichiers...les-en.png]