微信公众号开发之（16）连接数据库
连接数据库
- 新浪云mySQL
- phpMyAdmin管理
- 创建表、字段
- 连接数据库
- select
- updata
我用到的数据库是：新浪云共享型数据库
如何在新浪云上连接数据库：
推荐一个人寻觅beyond写的博客：https://www.cnblogs.com/-beyond/p/6739737.html
我连接数据库代码如下：
<head>
<meta charset="utf-8" />
head>
<body>
连接数据库
$dbname = "数据库名";
$host = "主库域名";
$port = "端口";
$user = "用户名";
$pwd = "密码";
mysql_connect($host,$user,$pwd) or die("can ' t connect to MySQL");
mysql_select_db($dbname)
?>
body>
核心代码如下：
//get post data, May be due to the different environments
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
//extract post data
if (!empty($postStr)){
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$fromUsername = $postObj->FromUserName;
$toUsername = $postObj->ToUserName;
$keyword = trim($postObj->Content);
$time = time();
$textTpl = "
%s
0
";
if(!empty( $keyword ))
{
//用 户 名 : $user
//密 码 : $pwd
//主库域名 : $host
//从库域名 : SAE_MYSQL_HOST_S
//端 口 : $port
//数据库名 : $dbname
$dbname = "app_dq095";
$host = "w.rdc.sae.sina.com.cn";
$port = "3306";
$user = "用户名";
$pwd = "密码";
/*接着调用mysql_connect()连接服务器*/
// 连主库
$db = mysql_connect($host,$user,$pwd);
if(!$db){
die("Connect Server Failed: " . mysql_error($db));
}
/*连接成功后立即调用mysql_select_db()选中需要连接的数据库*/
if (!mysql_select_db($dbname)) {
die("Select Database Failed: " . mysql_error($db));
}
/*至此连接已完全建立，就可对当前数据库进行相应的操作了*/
/*！！！注意，无法再通过本次连接调用mysql_select_db来切换到其它数据库了！！！*/
/* 需要再连接其它数据库，请再使用mysql_connect+mysql_select_db启动另一个连接*/
/**
* 接下来就可以使用其它标准php mysql函数操作进行数据库操作
*/
mysql_query("set names utf-8",$db);
$sql="SELECT * FROM `choujiang` WHERE 1 LIMIT 0 , 30";
$query=mysql_query($sql);
$rs=mysql_fetch_array($query);
$b= $rs['num'];
$msgType = "text";
$contentStr = "你是第{$b}个睡觉的！";
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
echo $resultStr;
$b++;
$sql="UPDATE `choujiang` SET `num`={$b} WHERE 1";
mysql_query($sql);
mysql_close($link);
}else{
echo "Input something...";
}
index.php代码如下：
/**
* wechat php test
*/
//define your token
define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
$wechatObj->responseMsg();
class wechatCallbackapiTest
{
public function valid()
{
$echoStr = $_GET["echostr"];
//valid signature , option
if($this->checkSignature()){
echo $echoStr;
exit;
}
}
public function responseMsg()
{
//get post data, May be due to the different environments
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
//extract post data
if (!empty($postStr)){
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$fromUsername = $postObj->FromUserName;
$toUsername = $postObj->ToUserName;
$keyword = trim($postObj->Content);
$time = time();
$textTpl = "
%s
0
";
if(!empty( $keyword ))
{
//用 户 名 : $user
//密 码 : $pwd
//主库域名 : $host
//从库域名 : SAE_MYSQL_HOST_S
//端 口 : $port
//数据库名 : $dbname
$dbname = "app_dq095";
$host = "w.rdc.sae.sina.com.cn";
$port = "3306";
$user = "4k514n103z";
$pwd = "2402314li2j1i5im1xy2xizj5y332w2x41k2z203";
/*接着调用mysql_connect()连接服务器*/
// 连主库
$db = mysql_connect($host,$user,$pwd);
if(!$db){
die("Connect Server Failed: " . mysql_error($db));
}
/*连接成功后立即调用mysql_select_db()选中需要连接的数据库*/
if (!mysql_select_db($dbname)) {
die("Select Database Failed: " . mysql_error($db));
}
/*至此连接已完全建立，就可对当前数据库进行相应的操作了*/
/*！！！注意，无法再通过本次连接调用mysql_select_db来切换到其它数据库了！！！*/
/* 需要再连接其它数据库，请再使用mysql_connect+mysql_select_db启动另一个连接*/
/**
* 接下来就可以使用其它标准php mysql函数操作进行数据库操作
*/
mysql_query("set names utf-8",$db);
$sql="SELECT * FROM `choujiang` WHERE 1 LIMIT 0 , 30";
$query=mysql_query($sql);
$rs=mysql_fetch_array($query);
$b= $rs['num'];
$msgType = "text";
$contentStr = "你是第{$b}个睡觉的！";
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
echo $resultStr;
$b++;
$sql="UPDATE `choujiang` SET `num`={$b} WHERE 1";
mysql_query($sql);
mysql_close($link);
}else{
echo "Input something...";
}
}else {
echo "";
exit;
}
}
private function checkSignature()
{
$signature = $_GET["signature"];
$timestamp = $_GET["timestamp"];
$nonce = $_GET["nonce"];
$token = TOKEN;
$tmpArr = array($token, $timestamp, $nonce);
sort($tmpArr);
$tmpStr = implode( $tmpArr );
$tmpStr = sha1( $tmpStr );
if( $tmpStr == $signature ){
return true;
}else{
return false;
}
}
}
?>