<?php
class crypt {
private $skey;
public function __construct($key) {
$this->skey = hash("md5", $key, true); //32位skey
}
public function safe_b64encode($string) {
$data = base64_encode($string);
$data = str_replace(array('+', '/', '='), array('-', '_', ''), $data);
return $data;
}
public function safe_b64decode($string) {
$data = str_replace(array('-', '_'), array('+', '/'), $string);
$mod4 = strlen($data) % 4;
if ($mod4) {
$data .= substr('====', $mod4);
}
return base64_decode($data);
}This is a PHP encryption and decryption class. Friends who need it can download and use it
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