Cookies operation class instance implemented by php, phpcookies class instance_PHP tutorial

Cookies operation class instance implemented by php, phpcookies class instance

The examples in this article describe the Cookies operation class implemented by PHP and its usage, and share it with everyone for your reference. The specific analysis is as follows:

1. Function:

1. Save, read, update, and clear cookie data.
2. Prefix can be set.
3. Forced timeout control.
4.Cookies data can be strings, arrays, objects, etc.

2. Usage:

Cookies.class.php class file is as follows:

<&#63;php 
/** Cookies class 保存,读取,更新,清除cookies数据。可设置前缀。强制超时。数据可以是字符串,数组,对象等。 
*  Date:  2013-12-22 
*  Author: fdipzone 
*  Ver:  1.0 
* 
*  Func: 
*  public  set    设置cookie 
*  public  get    读取cookie 
*  public  update   更新cookie 
*  public  clear   清除cookie 
*  public  setPrefix 设置前缀 
*  public  setExpire 设置过期时间 
*  private authcode  加密/解密 
*  private pack    将数据打包 
*  private unpack   将数据解包 
*  private getName  获取cookie name,增加prefix处理 
*/ 
 
class Cookies{ // class start 
 
  private $_prefix = '';                         // cookie prefix 
  private $_securekey = 'ekOt4_Ut0f3XE-fJcpBvRFrg506jpcuJeixezgPNyALm';  // encrypt key 
  private $_expire = 3600;                        // default expire 
 
  /** 初始化 
  * @param String $prefix   cookie prefix 
  * @param int  $expire   过期时间 
  * @param String $securekey cookie secure key 
  */ 
  public function __construct($prefix='', $expire=0, $securekey=''){ 
 
    if(is_string($prefix) && $prefix!=''){ 
      $this->_prefix = $prefix; 
    } 
 
    if(is_numeric($expire) && $expire>0){ 
      $this->_expire = $expire; 
    } 
 
    if(is_string($securekey) && $securekey!=''){ 
      $this->_securekey = $securekey; 
    } 
 
  } 
 
  /** 设置cookie 
  * @param String $name  cookie name 
  * @param mixed $value cookie value 可以是字符串,数组,对象等 
  * @param int  $expire 过期时间 
  */ 
  public function set($name, $value, $expire=0){ 
 
    $cookie_name = $this->getName($name); 
    $cookie_expire = time() + ($expire&#63; $expire : $this->_expire); 
    $cookie_value = $this->pack($value, $cookie_expire); 
    $cookie_value = $this->authcode($cookie_value, 'ENCODE', $this->_securekey); 
 
    if($cookie_name && $cookie_value && $cookie_expire){ 
      setcookie($cookie_name, $cookie_value, $cookie_expire); 
    } 
 
  } 
 
  /** 读取cookie 
  * @param String $name  cookie name 
  * @return mixed     cookie value 
  */ 
  public function get($name){ 
 
    $cookie_name = $this->getName($name); 
 
    if(isset($_COOKIE[$cookie_name])){ 
 
      $cookie_value = $this->authcode($_COOKIE[$cookie_name], 'DECODE', $this->_securekey); 
      $cookie_value = $this->unpack($cookie_value); 
 
      return isset($cookie_value[0])&#63; $cookie_value[0] : null; 
 
    }else{ 
      return null; 
    } 
 
  } 
 
  /** 更新cookie,只更新内容,如需要更新过期时间请使用set方法 
  * @param String $name  cookie name 
  * @param mixed $value cookie value 
  * @return boolean 
  */ 
  public function update($name, $value){ 
 
    $cookie_name = $this->getName($name); 
 
    if(isset($_COOKIE[$cookie_name])){ 
 
      $old_cookie_value = $this->authcode($_COOKIE[$cookie_name], 'DECODE', $this->_securekey); 
      $old_cookie_value = $this->unpack($old_cookie_value); 
 
      if(isset($old_cookie_value[1]) && $old_cookie_vlaue[1]>0){ // 获取之前的过期时间 
 
        $cookie_expire = $old_cookie_value[1]; 
 
        // 更新数据 
        $cookie_value = $this->pack($value, $cookie_expire); 
        $cookie_value = $this->authcode($cookie_value, 'ENCODE', $this->_securekey); 
 
        if($cookie_name && $cookie_value && $cookie_expire){ 
          setcookie($cookie_name, $cookie_value, $cookie_expire); 
          return true; 
        } 
      } 
    } 
    return false; 
  } 
 
  /** 清除cookie 
  * @param String $name  cookie name 
  */ 
  public function clear($name){ 
 
    $cookie_name = $this->getName($name); 
    setcookie($cookie_name); 
  } 
 
  /** 设置前缀 
  * @param String $prefix cookie prefix 
  */ 
  public function setPrefix($prefix){ 
 
    if(is_string($prefix) && $prefix!=''){ 
      $this->_prefix = $prefix; 
    } 
  } 
 
  /** 设置过期时间 
  * @param int $expire cookie expire 
  */ 
  public function setExpire($expire){ 
 
    if(is_numeric($expire) && $expire>0){ 
      $this->_expire = $expire; 
    } 
  } 
 
  /** 获取cookie name 
  * @param String $name 
  * @return String 
  */ 
  private function getName($name){ 
    return $this->_prefix&#63; $this->_prefix.'_'.$name : $name; 
  } 
 
  /** pack 
  * @param Mixed $data   数据 
  * @param int  $expire  过期时间 用于判断 
  * @return 
  */ 
  private function pack($data, $expire){ 
 
    if($data===''){ 
      return ''; 
    } 
 
    $cookie_data = array(); 
    $cookie_data['value'] = $data; 
    $cookie_data['expire'] = $expire; 
    return json_encode($cookie_data); 
  } 
 
  /** unpack 
  * @param Mixed $data 数据 
  * @return       array(数据,过期时间) 
  */ 
  private function unpack($data){ 
 
    if($data===''){ 
      return array('', 0); 
    } 
 
    $cookie_data = json_decode($data, true); 
 
    if(isset($cookie_data['value']) && isset($cookie_data['expire'])){ 
 
      if(time()<$cookie_data['expire']){ // 未过期 
        return array($cookie_data['value'], $cookie_data['expire']); 
      } 
    } 
    return array('', 0); 
  } 
 
  /** 加密/解密数据 
  * @param String $str    原文或密文 
  * @param String $operation ENCODE or DECODE 
  * @return String      根据设置返回明文活密文 
  */ 
  private function authcode($string, $operation = 'DECODE'){ 
 
    $ckey_length = 4;  // 随机密钥长度 取值 0-32; 
 
    $key = $this->_securekey; 
 
    $key = md5($key); 
    $keya = md5(substr($key, 0, 16)); 
    $keyb = md5(substr($key, 16, 16)); 
    $keyc = $ckey_length &#63; ($operation == 'DECODE' &#63; substr($string, 0, $ckey_length): substr(md5(microtime()), -$ckey_length)) : '';
 
    $cryptkey = $keya.md5($keya.$keyc); 
    $key_length = strlen($cryptkey); 
 
    $string = $operation == 'DECODE' &#63; base64_decode(substr($string, $ckey_length)) : sprintf('%010d', 0).substr(md5($string.$keyb), 0, 16).$string; 
    $string_length = strlen($string); 
 
    $result = ''; 
    $box = range(0, 255); 
 
    $rndkey = array(); 
    for($i = 0; $i <= 255; $i++) { 
      $rndkey[$i] = ord($cryptkey[$i % $key_length]); 
    } 
 
    for($j = $i = 0; $i < 256; $i++) { 
      $j = ($j + $box[$i] + $rndkey[$i]) % 256; 
      $tmp = $box[$i]; 
      $box[$i] = $box[$j]; 
      $box[$j] = $tmp; 
    } 
 
    for($a = $j = $i = 0; $i < $string_length; $i++) { 
      $a = ($a + 1) % 256; 
      $j = ($j + $box[$a]) % 256; 
      $tmp = $box[$a]; 
      $box[$a] = $box[$j]; 
      $box[$j] = $tmp; 
      $result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256])); 
    } 
 
    if($operation == 'DECODE') { 
      if((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26).$keyb), 0, 16)) { 
        return substr($result, 26); 
      } else { 
        return ''; 
      } 
    } else { 
      return $keyc.str_replace('=', '', base64_encode($result)); 
    } 
  } 
} // class end 
 
&#63;> 

demo.php sample program is as follows:

<&#63;php 
require 'Cookies.class.php'; 
 
$type = isset($_GET['type'])&#63; strtolower($_GET['type']) : ''; 
 
if(!in_array($type, array('set','get','update','clear'))){ 
  exit('type not exists'); 
} 
 
$obj = new Cookies('member', 10); // obj 
 
switch($type){ 
 
  case 'set': // 设置 
    $data = array( 
      'name' => 'fdipzone', 
      'gender' => 'male' 
    ); 
    $obj->set('me', $data, 5); 
    echo 'set cookies'; 
    break; 
 
  case 'get': // 读取 
    $result = $obj->get('me'); 
 
    echo '<pre class="brush:php;toolbar:false">'; 
    print_r($result); 
    echo '

'; echo 'get cookies'; break; case 'update': // 更新 $data = array( 'name' => 'angelababy', 'gender' => 'female' ); $flag = $obj->update('me', $data); if($flag){ echo 'update cookies success'; }else{ echo 'update cookies false'; } break; case 'clear': // 清除 $obj->clear('me'); echo 'clear cookies'; break; } ?>

Click here to download the complete example source code of this article.

I hope this article will be helpful to everyone’s PHP programming design.

How to set multiple values ​​for cookies in php? Just like asp, you can set multiple values ​​

0118057a8653bdfc1693aa0fd8f4a0e9 $value) { 
echo "$name : $value df250b2156c434f3390392d09b1c9563\n";
}
}
?>

Examples in the manual

How to read COOKIES in PHP

[IT168 Technical Documentation] Cookies must be assigned a value before the server sends any content to the client's browser. To do this, the cookie settings must be placed in the < HEAD tag: < ?phpsetcookie("CookieID", $USERID);?< HTML< BODY< /BODY< /HTML There are six setcookie functions in total Parameters, separated by commas:
The name of the cookie, which is a string, for example: "CookieID". Colons, commas and spaces are not allowed in between. This parameter is required, while all other parameters are optional. If only this parameter is given, the cookie will be deleted.
The value of cookie, usually a string variable, for example: $USERID. You can also assign a ? to it to skip setting the value.
The time when the cookie expires. If omitted (or assigned a value of zero), the cookie will expire at the end of this session. This parameter can be an absolute time, represented by DD-Mon-YY HH:MM:SS, such as: "24-Nov-99 08:26:00". What is more commonly used is to set a relative time. This is achieved through the time() function or the mktime function. For example, time()+3600 will cause the cookie to expire after one hour.
A path used to match cookies. When there are multiple cookie settings with the same name on a server, this parameter is used to avoid confusion. Using the "/" path has the same effect as omitting this parameter. It should be noted that Netscape's cookie definition puts the domain name in front of the path, while PHP does the opposite.
The domain name of the server is also used to match cookies. It should be noted that a dot (.) must be placed before the domain name of the server. For example: ".friendshipcenter.com" . Because unless there are more than two points, this parameter cannot be accepted.
The security level of the cookie is an integer. 1 means this cookie can only be sent over "secure" networks. 0 or omitted means any type of network is acceptable

http://www.bkjia.com/PHPjc/883685.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/883685.htmlTechArticleCookies operation class examples implemented by php, phpcookies class examples This article describes the Cookies operation class implemented by PHP and its usage , shared with everyone for your reference. The specific analysis is as follows: 1....