php - How to transform this Regex -


i'm trying figure out does, , how change it.

preg_replace('/[^\w\s]/','',$var);

i think replaces symbols nothing (deletes them basically). if want allow specific symbols, change here?

for example want replace except:

  • /
  • numbers
  • letters
  • spaces

thanks.

^ means this, replaces word characters (\w) , whitespace (\s).

to replace except characters mention, use this:

preg_replace('/[^\w\s\/]/', '', $var);

\/ escaped version of /.


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