[SOLVED] Help with matching in php

[networkthis]

Here is what I have so far.......I am trying to make sure that the user enters a valid name for a form.  I am going about it this way to display an error on the form is the user tries to enter invalid characters and to let them know that only letters are allowed in the form.  I have everything working great, but when you enter in blank spaces, it will display my error message saying that only letters are allowed in this field.  I guess I just need to know how to allow blank spaces.  Any help is greatly appreciated! 

 

function validate_ABC($text){

  if (preg_match("/[^a-zA-Z]/",$text))

  {

  $valid_ABC = 0;

  } else

  {

  $valid_ABC = 1;

  }

return $valid_ABC;

}

[networkthis]

Never mind I figured it out!!!!

[:blank:] needed to add this in to the reg exp.  I kept trying it as :blank: