lib/PHPRtfLite/List/Numbering.php
private function getAlphaNumber($number, $lowerCase = false)
    {
        $asciiStartIndex = $lowerCase ? 97 : 65;
        $alpha = '';
        while ($number > 0) {
            $modulus = ($number - 1) % 26;
            $alpha .= chr($modulus + $asciiStartIndex);
            $number = floor(($number - 1) / 26);
        }
        return strrev($alpha);
    }
private function getAlphaNumber($number, $lowerCase = false)
    {
        $asciiStartIndex = $lowerCase ? 97 : 65;
        $alpha = '';
        while ($number > 0) {
            $modulus = ($number - 1) % 26;
            $alpha .= chr($modulus + $asciiStartIndex);
            $number = floor(($number - 1) / 26);
        }
        return strrev($alpha);
    }
private function getAlphaNumber ( $ number , $ lowerCase = false ) { $ asciiStartIndex = $ lowerCase ? 97 : 65 ; $ alpha = '' ; while ( $ number > 0 ) { $ modulus = ( $ number - 1 ) % 26 ; $ alpha .= chr ( $ modulus + $ asciiStartIndex ) ; $ number = floor ( ( $ number - 1 ) / 26 ) ; } return strrev ( $ alpha ) ; }
gets alpha number

@param   integer $number
@param   boolean $lowerCase
@return  string
gets alpha number