单向字符串加密的php实例

/**
 * 单向字符串加密算法    不能用作密码加密
 */
if (CRYPT_STD_DES == 1)
{
echo "Standard DES: ".crypt("hello world")."\n";
}
else
{
echo "Standard DES not supported.\n";
}

if (CRYPT_EXT_DES == 1)
{
echo "Extended DES: ".crypt("hello world")."\n";
}
else
{
echo "Extended DES not supported.\n";
}

if (CRYPT_MD5 == 1)
{
echo "MD5: ".crypt("hello world")."\n";
}
else
{
echo "MD5 not supported.\n";
}

if (CRYPT_BLOWFISH == 1)
{
echo "Blowfish: ".crypt("hello world");
}
else
{
echo "Blowfish DES not supported.";
}
?>

作者：k7gxn56