quick regular expression question

hey everybody,

i'm using this regular expression:
"^{[a-zA-Z0-9(_).-]+$"}

i need it to except spaces too (but only 1 space at a time)... i'm terrible with regular expressions and can't figure out how to do this

thanks for helping

"^([ ]*)" it stores all the characters from beginning until space

thanks, but i want to include spaces, but only 1 at a time and not as the first/last character (meant to spell accept)

also, i can't get this regular expression to work either

should return true if it is anything but two digits 0-9

if(!eregi($string,$regex))
$error = true;

right? or do i have eregi() wrong?

i've tried these expressions:
"[0-9][0-9]", "[0-9]*", "[0-9]+"
and none of them work

and i still can't get the first one working either

help!!
thanks!