PHP不支持socket_connect函数开启步骤

<?php
$address = gethostbyname ($ip);
        $command = "ping -c 1 " . $address; 
        $r = exec($command); 
          if ($r[0]=="r")
          {       
            $socket = socket_create (AF_INET, SOCK_STREAM, 0);
            if ($socket < 0) {
                echo "socket_create() failed: reason: " . socket_strerror ($socket) . "n";
            } else {
                echo "OK.n";
            }
?>

class memcachedInit {
private $memcache;

/**
 * Memcache缓存-设置缓存
 * 设置缓存key，value和缓存时间
 * @param  string $key   KEY值
 * @param  string $value 值
 * @param  string $time  缓存时间
 */
public function set_cache($key, $value, $time = 0) {
return $this->memcache->set($key, $value, false, $time);
}

/**
 * Memcache缓存-获取缓存
 * 通过KEY获取缓存数据
 * @param  string $key   KEY值
 */
public function get_cache($key) {
return $this->memcache->get($key);
}

/**
 * Memcache缓存-清除一个缓存
 * 从memcache中删除一条缓存
 * @param  string $key   KEY值
 */
public function clear($key) {
return $this->memcache->delete($key);
}

/**
 * Memcache缓存-清空所有缓存
 * 不建议使用该功能
 * @return
 */
public function clear_all() {
return $this->memcache->flush();
}

/**
 * 字段自增-用于记数
 * @param string $key  KEY值
 * @param int    $step 新增的step值
 */
public function  increment($key, $step = 1) {
return $this->memcache->increment($key, (int) $step);
}

/**
 * 字段自减-用于记数
 * @param string $key  KEY值
 * @param int    $step 新增的step值
 */
public function decrement($key, $step = 1) {
return $this->memcache->decrement($key, (int) $step);
}

/**
 * 关闭Memcache链接
 */
public function close() {
return $this->memcache->close();
}

/**
 * 替换数据
 * @param string $key 期望被替换的数据
 * @param string $value 替换后的值
 * @param int    $time  时间值
 * @param bool   $flag  是否进行压缩
 */
public function replace($key, $value, $time = 0, $flag = false) {
return $this->memcache->replace($key, $value, false, $time);
}

/**
 * 获取Memcache的版本号
 */
public function getVersion() {
return $this->memcache->getVersion();
}

/**
 * 获取Memcache的状态数据
 */
public function getStats() {
return $this->memcache->getStats();
}

/**
 * Memcache缓存-设置链接服务器
 * 支持多MEMCACHE服务器
 * 配置文件中配置Memcache缓存服务器：
 * $InitPHP_conf['memcache'][0]   = array('127.0.0.1', '11211'); 
 * @param  array $servers 服务器数组-array(array('127.0.0.1', '11211'))
 */
public function add_server($servers) {
$this->memcache = new Memcache;
if (!is_array($servers) || empty($servers)) exit('memcache server is null!');
foreach ($servers as $val) {
$this->memcache->addServer($val[0], $val[1]);
}
}
}

使用方法

$newclass = new memcachedInit();
$newclass->getVersion() //获取版本号
$newclass->close() //关闭Memcache链接
$newclass->clear($key) //从memcache中删除一条缓存
$newclass->get_cache($key) //通过KEY获取缓存数据

[root@localhost ~]# php 1.php
1/407
101/407
201/407
301/407
401/407

<?php
$from = '10.0.2.52:6379/7';
$to   = '127.0.0.1:6379/7';
$from_redis = redis_init($from);
$to_redis   = redis_init($to);
$keys  = $from_redis->keys('*');
$count = 0;
$total = count($keys);
foreach($keys as $key){
    if(++$count % 100 == 1){
        echo "$count/$total＼n";
    }
    $type = $from_redis->type($key);
    switch($type){
        case Redis::REDIS_STRING:
            $val = $from_redis->get($key);
            $to_redis->set($key, $val);
            break;
        case Redis::REDIS_LIST:
            $list = $from_redis->lRange($key, 0, -1);
            foreach($list as $val){
                $to_redis->rPush($key, $val);
            }
            break;
        case Redis::REDIS_HASH:
            $hash = $from_redis->hGetAll($key);
            $to_redis->hMSet($key, $hash);
            break;
        case Redis::REDIS_ZSET:
            $zset = $from_redis->zRange($key, 0, -1, true);
            foreach($zset as $val=>$score){
                $to_redis->zAdd($key, $score, $val);
            }
            break;
    }
}

function redis_init($conf){
    $redis = new Redis();
    preg_match('/^([^:]+)(:[0-9]+)?＼＼/(.+)?/', $conf, $ms);
    $host = $ms[1];
    $port = trim($ms[2], ':');
    $db = $ms[3];
    $redis->connect($host, $port);
    $redis->select($db);
    return $redis;
}
 

<?php
mysql_connect("localhost","root","");//连接MySQL
mysql_select_db("hello");//选择数据库
?>

<?php
require_once("conn.php");//引用数据库链接文件

$uname = $_GET['n'];//GET方法为URL参数传递
$psw = $_GET['p'];
$psw=md5($psw);//直接使用MD5加密

$sql = "insert into members(username,password) values ('$uname','$psw')";
mysql_query($sql);//借SQL语句插入数据

mysql_close();//关闭MySQL连接
echo "成功录入数据";
?>

while($row = mysql_fetch_array($result))
{
echo "<div style="height:24px; line-height:24px; font-weight:bold;">"; //排版代码
echo $row['Topic'] . "<br/>";
echo "</div>"; //排版代码
}

<?php
 $con=mysql_connect("localhost","root","gl");
 mysql_select_db("happysea");

 $name=$_POST['name'];
 $password=$_POST['password'];
 $sex=$_POST['sex'];
 $e_mail=$_POST['e_mail'];
 $question=$_POST['question'];
 $answer=$_POST['answer'];

 $sql="insert into userinfo(name,password,sex,e_mail,question,answer)
  values('$name','$password','$sex','$e_mail','$question','$answer')";
 
 if(!$sql)
 {
  echo('注册失败!');
 }
 else
 {
  echo('注册成功!');
 }

?>

这是数据库。

mysql> describe userinfo;
+----------+-------------+------+-----+---------+----------------+
| Field    | Type        | Null | Key | Default | Extra          |
+----------+-------------+------+-----+---------+----------------+
| id             | int(11)         | NO    | PRI | NULL    | auto_increment |
| name       | text              | YES  |        | NULL    |                |
| password | varchar(20) | YES  |        | NULL    |                |
| sex           | char(4)         | YES  |        | NULL   |                |
| e_mail      | varchar(30)  | YES  |        | NULL    |                |
| question   | text               | YES  |        | NULL    |                |
| answer     | text               | YES  |        | NULL    |                |
+----------+-------------+------+-----+---------+----------------+