function num2alpha($number) {
$result = '';
while ($number > 0) {
$number--; // Adjust for 0-indexing
$result = chr($number % 26 + 65) . $result; // Convert to letter
$number = intval($number / 26); // Move to the next "digit"
}
return $result;
}
不能传入0,要从1开始才行
破罐子互摔