Valid Username Problem

[moon 111]

This function is evaluating false for "admin". Whats wrong?

 

function validUsername($username)
  {
    if(preg_match("/[0-9a-zA-Z_\- ]{5, 20}/", $username)) return true;
    return false;
  }

[Orio]

Function looks fine, maybe you are not passing the data correctly? Show the code.

 

Orio.

[effigy]

Remove the space in your interval. You can also clean the pattern up by using a shorthand and moving the hyphen to the beginning of the character class, thus preventing any future metacharacter confusion:

 

/[-\w ]{5,20}/

[moon 111]

Thanks effigy.