PHP中使用memcache缓存技术提高响应速度详解

<?php
//连接
$mem = new Memcache;
$mem->connect("127.0.0.1", 11211) or die ("Could not connect");

//显示版本
$version = $mem->getVersion();
echo "Memcached Server version:  ".$version."<br>";

//保存数据
$mem->set('key1', 'This is first value', 0, 60);
$val = $mem->get('key1');
echo "Get key1 value: " . $val ."<br>";

//替换数据
$mem->replace('key1', 'This is replace value', 0, 60);
$val = $mem->get('key1');
echo "Get key1 value: " . $val . "<br>";

//保存数组
$arr = array('aaa', 'bbb', 'ccc', 'ddd');
$mem->set('key2', $arr, 0, 60);
$val2 = $mem->get('key2');
echo "Get key2 value: ";
print_r($val2);
echo "<br>";

//删除数据
$mem->delete('key1');
$val = $mem->get('key1');
echo "Get key1 value: " . $val . "<br>";

//清除所有数据
$mem->flush();
$val2 = $mem->get('key2');
echo "Get key2 value: ";
print_r($val2);
echo "<br>";

//关闭连接
$mem->close();
?>

<?php
//使用memcache缓存
$mc = memcache_connect('localhost', 11211);
$pn = $mc->get('pid');
echo $pn;

if($pn<1) $pn = 1;
else $pn++;

$mc->set('pid',$pn,0,0); //设置永不过期
memcache_close($mc);
?>

<script src="/js/v2/jquery.input_complete.js" type="text/javascript" ></script>
<link rel="stylesheet" href="/css/v2/jquery.input_complete.css" type="text/css" />

<script type="text/javascript">
  $(function(){
   $("#abcc").bigAutocomplete({width:176,data:[{title:"九龙仓世纪华府",result:"5976898"},{title:"九龙仓君玺",result:"5976896"},{title:"舟山朱家尖东沙度假村",result:"5976895"},{title:"广厦天都城爵士花园",result:"5976893"},{title:"绿城玉园",result:"5976892"},{title:"江南铭楼",result:"5976890"}，{title:"世茂江滨花园",result:"14869"}],callback:function(data){
    $("#s_loupan").val(data.result);
    
   }});   
  
  })
</script>

<input type="text" id="abcc" class="sel_quy" autocomplete="off" />

public function gwquery(){
    if($_POST){
    $zm = $_POST['data'];
    $wzm = $zm."%";
    $b = M('Wpindexgw');
    if($zm!="t"){//获取的首字母不是t的时候
    $list1 = $b->where("gwstatus=1 and gwname like '%$zm%'")->order("time desc")->select();//查询
    $narr =array();
    foreach( $list1 as $key => $val){        
        $ct2 = explode(" ",$val['gwname']);//获取标题拆分成数组。
         $szm=strtolower(substr($ct2[1],0,1));  //获取首字母 并且小写
        if($ct2[0]=="The" && $szm==$zm){//如果第一个字符是The 并且第二个字母首字母和提交的相同，这里The 区分大小写。
        $narr[] = $val; //写入数组
        }   
    }
    }else{      //处理首字母是T的时候    ，不希望第一个字数The 的显示在列表里。
        $list1 = $b->where("gwstatus=1 and gwname like '$wzm'")->order("time desc")->select();
    foreach( $list1 as $key => $val){        
        $ct2 = explode(" ",$val['gwname']);
        if($ct2[0]=="The"){
        $unnarr[] = $key;//获取符合条件的，要去掉的内容的数组标号。     
        }
         
    }   
             
}
    $list = $b->where("gwstatus=1 and gwname like '$wzm'")->order("time desc")->select();//正常的查询。
    if($zm=="t"){//处理当首字母是t的时候 ,去掉上面查询得到的内容，也就是如果是The的时候 按T 不显示。
    foreach($unnarr as $uval){
        unset($list[$uval]);
    }           
    }else{//按下的不是t的时候，要把第二个首字母符合的内容添加到正常查询的数组中。
    if(!empty($narr) && !empty($list)){//带The 的符合条件正常 本身也不空的时候。
    $list = array_merge($narr,$list);//合并数组。
    }else if(empty($list)){//正常查询为空。则看是否有带The开头的，有则合并
    $list=array();
    $list = array_merge($narr,$list);   
    }
    }
    if($list){
    $this->ajaxReturn($list,'success',1);
    }else{
        $this->error("Bestiary not found.");
        }
    }
     
}

public function gwquery1(){//之前备份。。
    if($_POST){
    $zm = $_POST['data'];
    $wzm = $zm."%";
    $b = M('Wpindexgw');
    $list = $b->where("gwstatus=1 and gwname like '$wzm'")->order("time desc")->select();
    //dump($list);
    if($list){
    $this->ajaxReturn($list,'success',1);
    }else{
        $this->error("Bestiary not found.");
        }
    }
     
}

<?php
/*****************************************
**********作者：冲星/arcow****************
**********njj@nuc.edu.cn*******************
**********php导入csv文件到数据库**********
**********同时计算程序执行时间***********
**********www.111cn.net***********
****************************************/
//定义获取时间函数
function getmicrotime(){
    list($usec, $sec) = explode(" ",microtime());
    return ((float)$usec + (float)$sec);
}
?>

<?php
$time_start = getmicrotime();
include("db.inc.php");//连接数据库
$db=new testcsv;
?>

<?php
$handle = fopen ("test.csv","r");
$sql="insert into scores(idcard,names,num,sex,nation,score) values('";
while ($data = fgetcsv ($handle, 1000, ",")) {
   $num = count ($data);
   for ($c=0; $c < $num; $c++) {
       if($c==$num-1){$sql=$sql.$data[$c]."')";break;}
       $sql=$sql.$data[$c]."','";
   }
print "<br>";
echo $sql."<br>";
$db->query($sql);
echo "SQL语句执行成功！<br>";
$sql="insert into scores(idcard,names,num,sex,nation,score) values('";
}
fclose ($handle);
$time_end = getmicrotime();
$time = $time_end - $time_start;
echo "程序执行时间：".$time."秒";
?>

<?
$cfg['Servers'][$i]['pmadb'] = 'phpmyadmin';

$cfg['Servers'][$i]['bookmarktable'] = 'pma_bookmark';

$cfg['Servers'][$i]['relation'] = 'pma_relation';

$cfg['Servers'][$i]['table_info'] = 'pma_table_info';

$cfg['Servers'][$i]['table_coords'] = 'pma_table_coords';

$cfg['Servers'][$i]['pdf_pages'] = 'pma_pdf_pages';

$cfg['Servers'][$i]['column_info'] = 'pma_column_info';

$cfg['Servers'][$i]['history'] = 'pma_history';

$cfg['Servers'][$i]['designer_coords'] = 'pma_designer_coords';

$cfg['Servers'][$i]['tracking'] = 'pma_tracking';
?>

 <?
$cfg['blowfish_secret'] = 'leapsoul.cn'
?>

mysql> delimiter //
mysql> CREATE PROCEDURE employee_list (OUT param1 INT)
    -> BEGIN
    ->   SELECT COUNT(*) INTO param1 FROM t;
    -> END
    -> //
Query OK, 0 rows affected (0.00 sec)

<h1>Employee listing</h1>
<form method="post" >
<p>Enter Department ID:
<input type="text" name="dept_id" size="4">
<input type="submit" name="submit" value="submit"><p>
</form>

<?php
$hostname = "localhost";
$username = "root";
$password = "secret";
$database = "prod";

if (IsSet ($_POST['submit'])) {

     $dbh = new mysqli($hostname, $username, $password, $database);

     /* check connection */
     if (mysqli_connect_errno()) {
          printf("Connect failed: %sn", mysqli_connect_error());
          exit ();
     }
     $dept_id = $_POST['dept_id'];

     if ($result_set = $dbh->query("call employee_list( $dept_id )")) {
          print ('<table border="1" width="30%"> <tr> '.
               '<td>Employee_id</td><td>Surname</td><td>Firstname</td></tr>');
          while ($row = $result_set->fetch_object()) {
               printf("<tr><td>%s</td><td>%s</td><td>%s</td></tr>n",
                      $row->employee_id, $row->surname, $row->firstname);
          }
     } else {
          printf("<p>Error:%d (%s) %sn", mysqli_errno($dbh),
                 mysqli_sqlstate($dbh), mysqli_error($dbh));
     }
     print ("</table> ");
     $dbh->close();
}
?>

$result_set = $dbh->query("call employee_list( $dept_id )")