simple preg

[astralaaron]

can someone please tell me why this isnt working?

  $firstName = 'asdf123'; if(!preg_match('/[a-zA-Z]/', $firstName)) {    die('test');   }

[Ingolme]

Because all you're doing is asking the program to make sure there's at least one character between a and Z. And there is, so the conditon is false.I think what you want is this:

if(preg_match('/[^a-zA-Z]/', $firstName)) {die('test');}

[astralaaron]

i want it to be letters only

[astralaaron]

isnt the ! saying if its NOT lower case or upper case letters?

[Ingolme]

Well, the regular expression I gave you will make the condition true as long as there are characters that aren't letters. Which is what I thought you wanted.The "!" in your last expression was making the condition say "As long as you don't find a single letter"

[aalbetski]

/^[a-zA-Z]$/this will return null (or false) if anything other than a letter is found in the string^ - beginning of string$ - end of stringthe ^ as the first character after the [ negates the class so [^a-zA-Z] will be true for everything that is not a letter

[astralaaron]

thanks guys