本文实例讲述了php实现36进制与10进制转换功能。分享给大家供大家参考,具体如下:/***@des
本文实例讲述了php实现36进制与10进制转换功能。分享给大家供大家参考,具体如下:
/**
* @desc im:十进制数转换成三十六机制数
* @param (int)$num 十进制数
* return 返回:三十六进制数
*/
function get_char($num) {
$num = intval($num);
if ($num <= 0)
return false;
$charArr = array("0","1","2","3","4","5","6","7","8","9",'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z');
$char = '';
do {
$key = ($num - 1) % 36;
$char= $charArr[$key] . $char;
$num = floor(($num - $key) / 36);
} while ($num > 0);
return $char;
}
/**
* @desc im:三十六进制数转换成十机制数
* @param (string)$char 三十六进制数
* return 返回:十进制数
*/
function get_num($char){
$array=array("0","1","2","3","4","5","6","7","8","9","A", "B", "C", "D","E", "F", "G", "H", "I", "J", "K", "L","M", "N", "O","P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y","Z");
$len=strlen($char);
for($i=0;$i<$len;$i++){
$index=array_search($char[$i],$array);
$sum+=($index+1)*pow(36,$len-$i-1);
}
return $sum;
}
使用实例:
echo "get_char:".get_char(514549)."<br>";
echo "get_num:".get_num('A0ZZ')."<br>";
PS:这里再为大家推荐几款计算与转换工具供大家参考使用:
在线任意进制转换工具: http://tools.jb51.net/transcoding/hexconvert
科学计算器在线使用_高级计算器在线计算: http://tools.jb51.net/jisuanqi/jsqkexue
在线计算器_标准计算器: http://tools.jb51.net/jisuanqi/jsq
php 36进制 10进制 转换