php把数组保存数据库程序代码_PHP教程

class db {
private $host;
private $user;
private $pwd;
private $dbname;
private $Mysqli;
function __construct($host, $user, $pwd, $dbname) {
$this->host = $host;
$this->user = $user;
$this->pwd = $pwd;
$this->dbname = $dbname;
$this->db();
}
function db() {
$this->mysqli = new mysqli ( $this->host, $this->user, $this->pwd, $this->dbname );
}
function select() {
$this->mysqli->query("SET CHARSET GBK");
$sql = "SELECT id,cname FROM hdw_channel";
$result = $this->mysqli
->query ( $sql );
$rows = array ();
while ( $row = $result->fetch_assoc () ) {
$rows [] = $row;
}
ECHO "

";

  print_r ( $rows );

 }

 function __wakeup(){   //反序列化，

  $this->db();

 }

}

$chanel = new db("localhost",'root','','hdcms');

//$chanel->select();

session_start();

$_SESSION['channel_obj'] = serialize($chanel);   //将对象序列化，保存的是对象的属性，没有方法，所以要用__wakeup()



class ren{

 private $name;

 private $age;

 function __construct($name,$age){

  $this->name =$name;

  $this->age = $age;

 }

 function show(){

  echo "姓名是：{$this->name}  年龄是：{$this->age}";

 }

 function __sleep(){

  return array_keys(get_object_vars($this));  //或得数组里边的键名，序列化某些变量

 }

}

$zao = new ren("赵六",44);

echo serialize($zao);       //序列化（指定哪个变量序列化）
====================================

 

session_start();

include '59.php';

$channel_obj=unserialize($_SESSION['channel_obj']);  //反序列化类对象

$channel_obj->select();  //有了__wakeup方法才可以起作用

/**************************************************************
*
* 使用特定function对数组中所有元素做处理
* @param string &$array 要处理的字符串
* @param string $function 要执行的函数
* @return boolean $apply_to_keys_also 是否也应用到key上
* @access public
*
*************************************************************/
function arrayRecursive(&$array, $function, $apply_to_keys_also = false)
{
static $recursive_counter = 0;
if (++$recursive_counter > 1000) {
die('possible deep recursion attack');
}
foreach ($array as $key => $value) {
if (is_array($value)) {
arrayRecursive($array[$key], $function, $apply_to_keys_also);
} else {
$array[$key] = $function($value);
}

if ($apply_to_keys_also && is_string($key)) {
$new_key = $function($key);
if ($new_key != $key) {
$array[$new_key] = $array[$key];
unset($array[$key]);
}
}
}
$recursive_counter--;
}

/**************************************************************
*
* 将数组转换为JSON字符串（兼容中文）
* @param array $array 要转换的数组
* @return string 转换得到的json字符串
* @access public
*
*************************************************************/
function JSON($array) {
arrayRecursive($array, 'urlencode', true);
$json = json_encode($array);
return urldecode($json);
}

$array = array
(
'Name'=>'希亚',
'Age'=>20
);

echo JSON($array);
?>