can some one tell me how valid letter only by php regex [duplicate]

This question already has answers he开发者_开发问答re: Closed 12 years ago.

Possible Duplicate:

PHP: Check only chars

i want insert only character from A to Z how i can make it by regular expression

---

if (ereg('[^A-Za-z]', $text)) {
  echo "More then letters";
}

else {
  echo "only letters";    
}

I hope this helps