How to hide or delete or convert html tag from textarea

Hello all,

i am trying to hide html tag from textarea of case module.

I have created a custom textarea and i dont want to show html tag. for that i used echo strip_tags();

but it not working

Kindly assist

I’m not sure why that happens. Any way, my solution will be to create a before save logic hook to sanitize the string before it’s saved.

Thanks for the reply
actually on load i want to remove html tag from textarea, In tihis textarea values are coming from db