PHP+redis实现添加处理投票的方法，phpredis-php手册-php.cn

PHP+redis实现添加处理投票的方法，phpredis

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：

<&#63;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);
     }
    }
  }
 }
&#63;>
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其中php连接mysql类mysql.class.php如下：

<&#63;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;       //数据库连接密码
  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) &#63; @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 $sqlType==MYSQL_SQL_GETDATA&#63;$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&#63;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.");
    }
  }
}
&#63;>

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希望本文所述对大家PHP程序设计有所帮助。