<?php function add_hyphen($tel) { $tel = preg_replace("/[^0-9]/", "", $tel); // 숫자 이외 제거 if (substr($tel,0,2)=='02') return preg_replace("/([0-9]{2})([0-9]{3,4})([0-9]{4})$/", "\\1-\\2-\\3", $tel); else if (strlen($tel)=='8' && (substr($tel,0,2)=='15' || substr($tel,0,2)=='16' || substr($tel,0,2)=='18')) // 지능망 번호이면 return preg_replace("/([0-9]{4})([0-9]{4})$/", "\\1-\\2", $tel); else return preg_replace("/([0-9]{3})([0-9]{3,4})([0-9]{4})$/", "\\1-\\2-\\3", $tel); } function br2nl($string) { return preg_replace('/\<br(\s*)?\/?\>/i', "\n", $string); }