《PHP教程：PHP+redis实现添加处理投票的方法》要点：
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本文实例讲述了PHP+redis实现添加处理投票的方法.分享给大家供大家参考,具体如下：PHP应用
<?php
header("Content-Type:text/html;charset=utf-8");
include 'lib/mysql.class.php';
$mysql_obj = mysql::getConn();
if(class_exists('Redis')){
//redis
$redis = new Redis();
$redis->pconnect('127.0.0.1', 6379);
if(isset($_SERVER['HTTP_REFERER'])){
$url_md5 = md5($_SERVER['HTTP_REFERER']);
}
$adve_key = 'adve';
$adve_key_exists = 'adve_exists';
if(!$redis->exists($adve_key_exists)){
$list = $mysql_obj->fetch_array("select * from admin_online_adve");
if($list){
foreach ($list as $key => $value) {
$url_hash = md5($value['adve_url']);
$adve_hash_key = $adve_key.":".$url_hash;
$id = $value['id'];
$redis->set($adve_hash_key,$id);
$redis->set($adve_key_exists,true);
}
}
}
$adve_new_key = $adve_key.':'.$url_md5;
if($redis->exists($adve_new_key)){
$adve_plus = $adve_new_key.":plus" ;
if(!$redis->exists($adve_plus)){
$redis->set($adve_plus,1);
}else{
$redis->incr($adve_plus);
$num = $redis->get($adve_plus);
if($num >100){
$id = $redis->get($adve_new_key);
// insert to sql;
$mysql_obj->query("update admin_online_adve set adve_num=adve_num+$num where id=$id");
$redis->set($adve_plus,1);
}
}
}
}
?>
<html>
<head>
<meta http-equiv="refresh" content="1;url=https://itunes.apple.com/cn/app/san-guo-zhi15-ba-wangno-da-lu/id694974270?mt=8">
<title>统计</title>
</head>
<body>
<img src="loading.gif">Loading...
</body>
</html>
其中php连接mysql类mysql.class.php如下：PHP应用
<?php
define("MYSQL_SQL_GETDATA", 1);
define("MYSQL_SQL_EXECUTE", 2);
class mysql_db{
var $_server; //数据库服务器地址
var $_user; //数据库连接帐号
var $_password; //数据库连接暗码
var $_dbname; //数据库名称
var $_persistency=false; //是否使用持久连接
var $_isConnect = false; //是否已经建立数据库连接
var $_charset="utf8"; //数据库连接字符集
var $_isDebug = false; //是否Debug模式
var $_sql=array(); //执行sql语句数组
var $_db_connect_id; //数据库连接对象标识
var $_result; //执行查询返回的值
var $_record;
var $_rowset;
var $_errno = 0;
var $_error = "connection error";
var $_checkDB = false;
function mysql_db($dbserver, $dbuser, $dbpassword,$database,$persistency = false,$autoConnect=false,$checkdb = false)
{
$this->_server = $dbserver;
$this->_user = $dbuser;
$this->_password = $dbpassword;
$this->_dbname = $database;
$this->_persistency = $persistency;
$this->_autoConnect = $autoConnect;
$this->_checkDB = $checkdb;
if($autoConnect){
$this->connection();
}
}
function connection($newLink = false)
{
if (!$newLink){
if($this->_isConnect && isset($this->_db_connect_id)){
@mysql_close($this->_db_connect_id);
}
}
$this->_db_connect_id = ($this->persistency) ? @mysql_pconnect($this->_server, $this->_user, $this->_password):@mysql_connect($this->_server, $this->_user, $this->_password,$newLink);
if ($this->_db_connect_id)
{
if ($this->version() > '4.1')
{
if ($this->_charset != "")
{
@mysql_query("SET NAMES '".str_replace('-', '', $this->_charset)."'", $this->_db_connect_id);
}
}
if ($this->version() > '5.0')
{
@mysql_query("SET sql_mode=''", $this->_db_connect_id);
}
//检测指定数据库是否连接成功
if ($this->_checkDB){
$dbname = mysql_query('SELECT database()',$this->_db_connect_id);
$dbname = mysql_fetch_array($dbname,MYSQL_NUM);
$dbname = trim($dbname[0]);
}else{
$dbname = '';
}
if ($dbname==$this->_dbname || $dbname==''){
if (!@mysql_select_db($this->_dbname, $this->_db_connect_id))
{
@mysql_close($this->_db_connect_id);
$this->_halt("cannot use database " . $this->_dbname);
}
}else{
if ($this->_checkDB && !$newLink){
$this->connection(true);
}
}
return true;
}
else
{
$this->_halt('connect failed.',false);
}
}
function setCharset($charset){
//$charset = str_replace('-', '', $charset);
$this->_charset = $charset;
}
function setDebug($isDebug=true){
$this->_isDebug = $isDebug;
}
function query($sql,$type='')
{
return $this->_runSQL($sql,MYSQL_SQL_GETDATA,$type);
}
function execute($sql)
{
return $this->_runSQL($sql,MYSQL_SQL_EXECUTE,"UNBUFFERED");
}
function _runSQL($sql,$sqlType=MYSQL_SQL_GETDATA,$type = '')
{
if ($type =="UNBUFFERED"){
$this->_result = @mysql_unbuffered_query($sql,$this->_db_connect_id);
}else{
$this->_result = @mysql_query($sql,$this->_db_connect_id);
}
//测试模式下保存执行的sql语句
if($this->_isDebug){
$this->_sql[]=$sql;
}
if ($this->_result)
{
return $sqlType==MYSQL_SQL_GETDATA?$this->getNumRows():$this->getAffectedRows();
}else{
$this->_halt("Invalid SQL: ".$sql);
return false;
}
}
function next($result_type=MYSQL_ASSOC) {
$this->fetchRow($result_type);
return is_array($this->_record);
}
function f($name) {
if(is_array($this->_record)){
return $this->_record[$name];
}else{
return false;
}
}
function fetchRow($result_type=MYSQL_ASSOC)
{
if( $this->_result )
{
$this->_record = @mysql_fetch_array($this->_result,$result_type);
return $this->_record;
}else{
return false;
}
}
function getAll($sql,$primaryKey="",$result_type=MYSQL_ASSOC)
{
if ($this->_runSQL($sql,MYSQL_SQL_GETDATA)>=0){
return $this->fetchAll($primaryKey,$result_type);
}else{
return false;
}
}
function getOne($sql,$result_type=MYSQL_ASSOC)
{
if ($this->_runSQL($sql,MYSQL_SQL_GETDATA)>0){
$arr = $this->fetchAll("",$result_type);
if(is_array($arr)){
return $arr[0];
}
}else{
return false;
}
}
function fetchAll($primaryKey = "",$result_type=MYSQL_ASSOC)
{
if ($this->_result)
{
$i = 0;
$this->_rowset = array();
if ($primaryKey=="")
{
while($this->next($result_type))
{
$this->_rowset[$i] = $this->_record;
$i++;
}
}else{
while($this->next($result_type))
{
$this->_rowset[$this->f($primaryKey)] = $this->_record;
$i++;
}
}
return $this->_rowset;
}else{
//$this->_halt("Invalid Result");
return false;
}
}
function checkExist($sql)
{
return $this->query($sql)>0?true:false;
}
function getValue($sql, $colset = 0)
{
if ($this->query($sql)>0){
$this->next(MYSQL_BOTH);
return $this->f($colset);
}else{
return false;
}
}
function getNumRows()
{
return @mysql_num_rows($this->_result);
}
function getNumFields()
{
return @mysql_num_fields($this->_result);
}
function getFiledName($offset)
{
return @mysql_field_name($this->_result, $offset);
}
function getFiledType($offset)
{
return @mysql_field_type($this->_result, $offset);
}
function getFiledLen($offset)
{
return @mysql_field_len($this->_result, $offset);
}
function getInsertId()
{
return @mysql_insert_id($this->_db_connect_id);
}
function getAffectedRows()
{
return @mysql_affected_rows($this->_db_connect_id);
}
function free_result()
{
$ret = @mysql_free_result($this->_result);
$this->_result = 0;
return $ret;
}
function version() {
return @mysql_get_server_info($this->_db_connect_id);
}
function close() {
return @mysql_close($this->_db_connect_id);
}
function sqlOutput($isOut = true, $all = true){
if($all){
$ret = implode("<br>",$this->_sql);
}else{
$ret = $this->_sql[count($this->_sql)-1];
}
if ($isOut){
echo $ret;
}else{
return $ret;
}
}
function _halt($msg="Session halted.",$getErr=true) {
if($this->_isDebug){
if($getErr){
$this->_errno = @mysql_errno($this->_db_connect_id);
$this->_error = @mysql_error($this->_db_connect_id);
printf("<b>MySQL _error</b>: %s (%s)<br></font>/n",$this->_errno,$this->_error);
}
die($msg);
}else{
die("Session halted.");
}
}
}
?>
希望本文所述对大家PHP程序设计有所帮助.PHP应用
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