memcached的安装、配置等基本命令

<?php
$sql = 'SELECT * FROM users';
$key = md5($sql); //memcached 对象标识符
if ( !($datas = $mc->get($key)) ) {
// 在 memcached 中未获取到缓存数据，则使用数据库查询获取记录集。
echo "n".str_pad('Read datas from MySQL.', 60, '_')."n";
$conn = mysql_connect('localhost', 'test', 'test');
mysql_select_db('test');
$result = mysql_query($sql);
while ($row = mysql_fetch_object($result))
$datas[] = $row;
// 将数据库中获取到的结果集数据保存到 memcached 中，以供下次访问时使用。
$mc->add($key, $datas);
} else {
echo "n".str_pad('Read datas from memcached.', 60, '_')."n";
}
var_dump($datas);
?>

 $config['interfaceVersion']  = "1.0.0.0";   #接口版本
  $config['tranType']    =0; #交易类别  0:B:C
  $config['curType']        = 'CNY';           # 交易币种
  $config['notifyType']   =1;         #0=不通知 1=通知 2=抓取
  $config['merURL']   = "http://www.111cn.net /pay/notify";   # 主动通知url
  $config['goodsURL'        = 'http://www.111cn.net /goods/1.html';           #取货url
  $config['jumpSeconds']   =3;        #跳转时间
  $config['payBatchNo']   = '';     #商户批次号
  $config['proxyMerName']   = '';                 #代理商家名字
  $config['proxyMerType']   = '';                 #代理商类型
  $config['proxyMerCredentials']= '';                #代理商家批次号
  $config['netType']     = 0;                 #渠道编号

  //以下是 新接口需要的参数
  $config['socketUrl']         ="tcp://127.0.0.1:8891";  #socket url
  $config['merID']     ='301310063009501';    #商户id 3013100630095012
2.2 Model

/**
 * 交通银行支付类
 */
class Bocom extends CI_Model {
 private $arrReturn=array();
 private $socket;
 public function __construct() {
  parent::__construct ();
  //加载交通银行配置文件
  $this->config->load('bocom');
  $this->socket=$this->config->item('socketUrl');
 }
 /**
  * 支付方法
  *
  * @param unknown $arr_data=array(
  *  'bill_no'=>
  * )
  */
 public  function pay($arr_data){
  //获得表单传过来的数据
  $this->arrReturn['interfaceVersion'] = $this->config->item('interfaceVersion');
  $this->arrReturn['merID']       = $this->config->item('merID'); //商户号为固定
  $this->arrReturn['orderid']  = $arr_data['bill_no'];
  $this->arrReturn['orderDate']  = $arr_data['bill_date'];
  $this->arrReturn['orderTime']  = $arr_data['bill_time'];
  $this->arrReturn['tranType']  = $this->config->item('tranType');
  $this->arrReturn['amount']    = $arr_data['bill_fee'];
  $this->arrReturn['curType']  = $this->config->item('curType');
  $this->arrReturn['orderContent']  = isset($arr_data['bill_title'])?iconv('utf-8','gb2312',$arr_data["bill_title"]): '';   #订单内容
  $this->arrReturn['orderMono']     = isset($arr_data['bill_mono'])? iconv('utf-8','gb2312',$arr_data['bill_mono']):'';     #商家备注
  $this->arrReturn['phdFlag']       = isset($arr_data['phpFlag'])?$arr_data['phpFlag']:'';
  $this->arrReturn['notifyType']    = $this->config->item('notifyType');
  $this->arrReturn['merURL']        = $this->config->item('merURL');
  $this->arrReturn['goodsURL']      = $this->config->item('goodsURL');
  $this->arrReturn['jumpSeconds']   = $this->config->item('jumpSeconds');
  $this->arrReturn['payBatchNo']    = $this->config->item('payBatchNo');
  $this->arrReturn['proxyMerName']  = $this->config->item('proxyMerName');
  $this->arrReturn['proxyMerType']  = $this->config->item('proxyMerType');
  $this->arrReturn['proxyMerCredentials']= $this->config->item('proxyMerCredentials');
  $this->arrReturn['netType']        = $this->config->item('netType');
  //以下参数 不参与签名
  $this->arrReturn['issBankNo']      =isset($arr_data['code_id'])? trim($arr_data['code_id']):'';
  $tranCode = "cb2200_sign";
  $source='';
  $len = count($this->arrReturn)-1;$j=1;
  foreach($this->arrReturn as $v){
   if($j<=$len){
    $source.=$v."|";
   }
   $j++;
  }
  $source= substr($source, 0,strlen($source)-1);
     $fp= stream_socket_client($this->socket,$errno, $errstr, 30);   
     $retMsg="";
     if (!$fp) {
      log_message("info","socket连接失败");
      return false;
     } else
     {
     $in  = "<?xml version='1.0' encoding='gbk2312'?>";
  $in .= "<Message>";
  $in .= "<TranCode>".$tranCode."</TranCode>";
  $in .= "<MsgContent>".$source."</MsgContent>";
  $in .= "</Message>";
  fwrite($fp, $in);
       while (!feof($fp)) {
        $retMsg =$retMsg.fgets($fp, 1024);
       }
       fclose($fp);
     }
    if(false!==$xml_arr=$this->xmlParse($retMsg)){
       if(is_array($xml_arr)){
        foreach($xml_arr as $k=>$v){
         $this->arrReturn[$k]=$v;
        }
       }else{
        return false;
       }
    }else{
      return false;
    }
    return $this->arrReturn;
 }
 
 /**
  * 解析XML
  */
 public function xmlParse($retMsg){
  $arr=array();
  //解析返回xml
  $dom = new DOMDocument;
  $dom->loadXML($retMsg);
  $retCode = $dom->getElementsByTagName('retCode');
  $retCode_value = $retCode->item(0)->nodeValue;
  $errMsg = $dom->getElementsByTagName('errMsg');
  $errMsg_value = $errMsg->item(0)->nodeValue;
  $signMsg = $dom->getElementsByTagName('signMsg');
  $signMsg_value = $signMsg->item(0)->nodeValue;
  $orderUrl = $dom->getElementsByTagName('orderUrl');
  $orderUrl_value = $orderUrl->item(0)->nodeValue;
  $MerchID = $dom->getElementsByTagName('MerchID');
  $merID = $MerchID->item(0)->nodeValue;
  if($retCode_value != "0"){
   log_message("info","交易返回码:".$retCode_value);
   log_message("info","交易错误信息:".$errMsg_value);
            return false;
        }
   $arr['merSignMsg'] = $signMsg_value;
   $arr['merID']      = $merID;
    $arr['orderUrl']   = $orderUrl_value;     
   return $arr;
 }
 /**
  * 交通银行 支付通知
  * @return boolean|unknown
  */
 public function notify(){
  $tranCode = "cb2200_verify";
  if(!isset($_REQUEST['notifyMsg'])){
   log_message("error","网银支付通知·非法请求");
   return false;
  }
     $notifyMsg = $_REQUEST["notifyMsg"];
  log_message("error",$notifyMsg."回调....");
  
  $lastIndex = strripos($notifyMsg,"|");
  $signMsg = substr($notifyMsg,$lastIndex+1); //签名信息
  $srcMsg = substr($notifyMsg,0,$lastIndex+1);//原文
  $merID = $this->config->item('merID');
  $fp = stream_socket_client($this->socket, $errno, $errstr, 30);
  $retMsg="";
  //
  if (!$fp) {
   echo "$errstr ($errno)<br />＼n";
   log_message("error","$errstr ($errno)<br />＼n");
  } else{  
   $in  = "<?xml version='1.0' encoding='gb2312'?>";
   $in .= "<Message>";
   $in .= "<TranCode>".$tranCode."</TranCode>";
   $in .= "<merchantID>".$merID."</merchantID>";
   $in .= "<MsgContent>".$notifyMsg."</MsgContent>";
   $in .= "</Message>";
  fwrite($fp, $in);
    while (!feof($fp)) {
     $retMsg =$retMsg.fgets($fp, 1024); 
    }
    fclose($fp);
  }
  //解析返回xml
  $dom = new DOMDocument;
  $dom->loadXML($retMsg); 
  $retCode = $dom->getElementsByTagName('retCode');
  $retCode_value = $retCode->item(0)->nodeValue;
  $errMsg = $dom->getElementsByTagName('errMsg');
  $errMsg_value = $errMsg->item(0)->nodeValue;
  if($retCode_value != '0')
  {
   log_message("error","交易错误信息：" .$errMsg_value."<br>");
   return false;
  }else{
   $arr = preg_split("/＼|{1,}/",$srcMsg);
   if($arr[9]=="1"){
    return $this->updateBill($arr[1]);
   }
   log_message("error","交易失败:".$arr[13]."<br/>");
   return false;
  } 
 }
 private function updateBill($billNo){
  // 更新 订单状态
 }
 //end class
}
2.3 控制器
$this->load->model("Bocom");
 支付方法：
 $this->arrData =$this->Bocom->pay($this->data);
 通知：
   $this->arrData =$this->Bocom->notify();

<?php
function characet($data){
  if( !empty($data) ){
    $fileType = mb_detect_encoding()($data , array('UTF-8','GBK','LATIN1','BIG5')) ;
    if( $fileType != 'UTF-8'){
      $data = mb_convert_encoding($data ,'utf-8' , $fileType);
    }
  }
  return $data;
}
?>

$temstr=file_get_contents($path);
$encode   = mb_detect_encoding($temstr,"ASCII,UTF-8,CP936,EUC-CN,BIG-5,EUC-TW");   
$temstr=mb_convert_encoding($temstr,   "CP936",   $encode); 

<?php  
$f=fopen("test.txt", "wb");  
$text=utf8_encode("a!");  
 
//先用函数utf8_encode将所需写入的数据变成UTF编码格式。  
 
$text="＼＼xEF＼＼xBB＼＼xBF".$text;  
 
//"＼＼xEF＼＼xBB＼＼xBF",这串字符不可缺少，生成的文件将成为UTF-8格式，否则依然是ANSI格式。  
 
fputs($f, $text);  
 
//写入。  
 
fclose($f);  
?>  

<?php
header('content-type:text/html charset:utf-8');
$dir_base = "./files/"; //文件上传根目录
//没有成功上传文件，报错并退出。
if(empty($_FILES)) {
 echo "<textarea><img src='{$dir_base}error.jpg'/></textarea>";
 exit(0);
}
$output = "<textarea>";
$index = 0; //$_FILES 以文件name为数组下标，不适用foreach($_FILES as $index=>$file)
foreach($_FILES as $file){
 $upload_file_name = 'upload_file' . $index;//对应index.html FomData中的文件命名
 $filename = $_FILES[$upload_file_name]['name'];
 $gb_filename = iconv('utf-8','gb2312',$filename); //名字转换成gb2312处理
 //文件不存在才上传
 if(!file_exists($dir_base.$gb_filename)) {
  $isMoved = false;  //默认上传失败
  $MAXIMUM_FILESIZE = 1 * 1024 * 1024;  //文件大小限制 1M = 1 * 1024 * 1024 B;
  $rEFileTypes = "/^＼.(jpg|jpeg|gif|png){1}$/i";
  if ($_FILES[$upload_file_name]['size'] <= $MAXIMUM_FILESIZE &&
   preg_match($rEFileTypes, strrchr($gb_filename, '.'))) { 
   $isMoved = @move_uploaded_file ( $_FILES[$upload_file_name]['tmp_name'], $dir_base.$gb_filename);  //上传文件
  }
 }else{
  $isMoved = true;//已存在文件设置为上传成功
 }
 if($isMoved){
  //输出图片文件<img>标签
  //注：在一些系统src可能需要urlencode处理，发现图片无法显示，
  //    请尝试 urlencode($gb_filename) 或 urlencode($filename)，不行请查看HTML中显示的src并酌情解决。
  $output .= "<img src='{$dir_base}{$filename}' title='{$filename}' alt='{$filename}'/>";
 }else {
  $output .= "<img src='{$dir_base}error.jpg' title='{$filename}' alt='{$filename}'/>";
 }
 $index++;
}
echo $output."</textarea>";