URL安全的字符串编码:
- function urlsafe_b64encode($string) {
- $data = base64_encode($string);
- $data = str_replace(array('+','/','='),array('-','_',''),$data);
- return $data;
- }
复制代码
URL安全的字符串解码:
- function urlsafe_b64decode($string) {
- $data = str_replace(array('-','_'),array('+','/'),$string);
- $mod4 = strlen($data) % 4;
- if ($mod4) {
- $data .= substr('====', $mod4);
- }
- return base64_decode($data);
- }