How can I strip commas and periods from a string?

Question

I have string containing something like this:

"Favourite bands: coldplay, guns & roses, etc.," 

How can I remove commas and periods using preg_replace?

Answer 1

You could use

preg_replace('/[.,]/', '', $string); 

but using a regular expression for simple character substitution is overkill.

You'd be better off using strtr:

strtr($string, array('.' => '', ',' => '')); 

or str_replace:

str_replace(array('.', ','), '' , $string);