<?php
function Centering($str, $width)
{
    $slen = strlen($str);
    if ($slen < $width) {
        $str = str_pad($str, $width, ' ', STR_PAD_BOTH);
    } else {
        $str = substr($str, (int)(($slen - $width)/2), $width);
    }
    return $str;
}
?>