我对 PHP 和 MySQL 完全陌生，但我正在我的网站中实现 Facebook PHP SDK。到目前为止一切正常，但我正在努力将用户数据添加到我的数据库（MySQL）中。我所拥有的一切都是一个数字，而不是用户名和 oauth_uid（我得到两个字段的数字 5）。这是代码：
<?php
define('db_user','myUserName');
define('db_password','myPassword');
define('db_host','myHost');
define('db_name','myDbName');
// Connect to MySQL
$dbc = @mysql_connect (db_host, db_user, db_password) OR die ('Could not connect to MySQL: ' . mysql_error() );
// Select the correct database
mysql_select_db (db_name) OR die ('Could not select the database: ' . mysql_error() );
require 'lib/facebook.php';
// Create our Application instance (replace this with your appId and secret).
$facebook = new Facebook(array(
'appId' => 'MYAPPID',
'secret' => 'MYSECRET',
'cookie' => true));
// Get User ID
$user = $facebook->getUser();
// We may or may not have this data based on whether the user is logged in.
//
// If we have a $user id here, it means we know the user is logged into
// Facebook, but we don't know if the access token is valid. An access
// token is invalid if the user logged out of Facebook.
if ($user) {
try {
// Proceed knowing you have a logged in user who's authenticated.
$fbuid = $facebook->getUser();
$user_profile = $facebook->api('/me');
} catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
}else{
header('Location: index.php');
}
$query = mysql_query("SELECT * FROM users WHERE oauth_provider = 'facebook' AND oauth_uid = ". $user['id']);
$result = mysql_fetch_array($query);
if(empty($result)){
$query = mysql_query("INSERT INTO users (oauth_provider, oauth_uid, username) VALUES ('facebook', {$user['id']}, '{$user['name']}')");
$query = msyql_query("SELECT * FROM users WHERE id = " . mysql_insert_id());
$result = mysql_fetch_array($query);
}
// Login or logout url will be needed depending on current user state.
if ($user) {
$paramsout = array('next'=>'http://www.mywebsite.com/test/logout.php');
$logoutUrl = $facebook->getLogoutUrl($paramsout);
}
?>
上面的页面称为 user_page.php ，它是用户在登录后被重定向到的地方。我试图将“数据库”代码移动到 index.php （用户登录的地方），但到目前为止一切努力都没有成功。这是 index.php 的代码：
require 'lib/facebook.php';
// Create our Application instance (replace this with your appId and secret).
$facebook = new Facebook(array(
'appId' => 'MYAPPID',
'secret' => 'MYSECRET',
'cookie' => true));
// Get User ID
$user = $facebook->getUser();
if ($user) {
try {
// Proceed knowing you have a logged in user who's authenticated.
$fbuid = $facebook->getUser();
$user_profile = $facebook->api('/me');
header('Location: user_page.php');
} catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
}
// Login or logout url will be needed depending on current user state.
if ($user) {
$logoutUrl = $facebook->getLogoutUrl();
} else {
$loginUrl = $facebook->getLoginUrl(Array('scope'=> 'user_interests,user_activities,user_education_history,user_likes,user_about_me, user_birthday, user_groups, user_hometown, user_work_history, email',
'redirect_uri' => 'http://www.mywebpage.com/test/user_page.php')
);
}
?>
更新*问题已修复（$user_profile 而不仅仅是 $user）：
$query = mysql_query("SELECT * FROM users WHERE oauth_provider = 'facebook' AND oauth_uid = ". $user_profile['id']);
$result = mysql_fetch_array($query);
if(empty($result)){
$query = mysql_query("INSERT INTO users (oauth_provider, oauth_uid, username) VALUES ('facebook', {$user_profile['id']}, '{$user_profile['name']}')");
$query = msyql_query("SELECT * FROM users WHERE id = " . mysql_insert_id());
$result = mysql_fetch_array($query);
}