PHP小记｜xxtea类
xxtea可逆加密算法PHP实现：
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Class Xxtea {
public function encrypt($s, $key) {
return base64_encode(self :: xxtea_encrypt($s, $key));
}
public function decrypt($e, $key) {
return self :: xxtea_decrypt(base64_decode($e), $key);
}
private function long2str($v, $w) {
$len = count($v);
$n = ($len -1) $n))
return false;
$n = $m;
}
$s = array ();
for ($i = 0; $i = 2147483648)
$n -= 4294967296;
while ($n > 2 & 3;
for ($p = 0; $p > 5 & 0x07ffffff) ^ $y > 3 & 0x1fffffff) ^ $z > 5 & 0x07ffffff) ^ $y > 3 & 0x1fffffff) ^ $z > 2 & 3;
for ($p = $n; $p > 0; $p--) {
$z = $v[$p -1];
$mx = self :: int32((($z >> 5 & 0x07ffffff) ^ $y > 3 & 0x1fffffff) ^ $z > 5 & 0x07ffffff) ^ $y > 3 & 0x1fffffff) ^ $z
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使用方法：
加密：
Xxtea::encrypt(明文字符串, 密钥字符串);
解密：
Xxtea::decrypt(密文字符串, 密钥字符串);
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