If I want to match alpha-numeric, underscore, dash and space
How would I represent the space in
preg_match(“/[a-zA-Z0-9_-]/”, $value)
just putting in a space doesn’t seem to work.
Thanks
\s represents a space
Excellent, thanks
not exactly - \s represents any type of whitespace (spaces, tabs, line feeds).
you could simply type the space into the pattern i.e.:
/[a-zA-Z0-9_\- ]/
or use \040 for clarity i.e.
/[a-zA-Z0-9_\-\040]/
by the way, \w is alpha-numeric and underscores, so you could simply to:
/[\w\- ]/
or
/[\w\-\040]/