Making sure only alphanumeric or certain characters

[MasterACE14]

I'm trying to validate a string so it can only be alphanumeric characters 0-9, a-z, A-Z and the following characters " ", "-", "!", "(", ")", "/", ".", ","

 

Looking at the php manual and a few different tutorial sites I'm not having much luck, I can get the alphanumeric part, but not those other characters.

 

I currently have...

$string = "FN#*F#)@)"; // should be invalid
if(!preg_match('/^[a-zA-Z0-9]+$/i', $string))
    echo "Invalid Input"; 

 

Not sure where to go from here.

 

Any help is very much appreciated.

 

Kind Regards,

Ace

[smoseley]

$string = "FN#*F#)@)"; // should be invalid

if(!preg_match('/^[a-zA-Z0-9 \-\!\/\(\)\,\.]+$/i', $string))

    echo "Invalid Input";

[MasterACE14]

cheers mate, appreciate it.