MySQL - trim VARCHAR values?

Question

I have simple table like this:

id (AUTO_INC)   |   text (VARCHAR 255)
 1                  hey!

is it possible to trim all the text values to remove all empty or hidden spaces in the field?

Cause if you can see this image you see the "word" field has strange hidden space char inside:

thank you!

Answer 1

To remove \t, \n and space you can do

update your_table
set `text` =  trim(replace(replace(`text`, '\n', ''), '\t',''))