str_pad($test,3,' ' ,STR_PAD_LEFT)

str_pad(변수명 , 총자리수 , 채울문자, 왼쪽에채움/오른쪽에채움)

<?php
$input = "Alien";
echo str_pad($input, 10);                                                     // produces "Alien    "
echo str_pad($input, 10, "-=", STR_PAD_LEFT);            // produces "-=-=-Alien"
echo str_pad($input, 10, "_", STR_PAD_BOTH);            // produces "__Alien___"
echo str_pad($input, 6 , "___");                                          // produces "Alien_"
?>