php mysql 用户登录源代码

源代码如下：

function authenticate_user() {

header('WWW-Authenticate: Basic realm="Secret Stash"');

header("HTTP/1.0 401 Unauthorized");

exit;

}

if (! isset($_SERVER['PHP_AUTH_USER'])) {

authenticate_user();

} else {

mysql_pconnect("localhost","authenticator","secret") or die("Can't connect to database server!");

mysql_select_db("db") or die("Can't select authentication database!");

$query = "SELECT username,pswd FROM user WHERE username='$_SERVER[PHP_AUTH_USER]' AND pswd=MD5('$_SERVER[PHP_AUTH_PW]')";

$result = mysql_query($query);

// If nothing was found,reprompt the user for the login information.

if (mysql_num_rows($result) == 0) {

authenticate_user();

}

}

?>

（编辑：安卓应用网）

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