php 랜덤 문자 만들기
function GenerateString($length) { $characters = "0123456789"; $characters .= "abcdefghijklmnopqrstuvwxyz"; $characters .= "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; $characters .= "_"; $string_generated = ""; $nmr_loops = $length; while ($nmr_loops--) { $string_generated .= $characters[mt_rand(0, strlen($characters) - 1)]; } return $string_generated; } echo GenerateString(15);
