


Analysis of CI cookie operation methods (based on helper class library), cookiehelper_PHP tutorial
Analysis of the method of CI operating cookies (based on the helper class library), cookiehelper
This article describes the method of CI operating cookies. Share it with everyone for your reference, the details are as follows:
There are three methods for CI to operate cookies. Among them, Ci comes with 2. Among them, we mainly explain the last method of ci cookie, which is to use the helpers’ built-in class library. The operation method is as follows:
Introduce class library:
$this->load->helper('cookie');
Set cookies
set_cookie("cookie名称",$cookie信息,times过期时间);
How to get it
get_cookie("cookie名称");
Since many small pages need to set cookies, I have encapsulated a small method: as follows
I like to operate in the parent class that the class inherits, because the framework introduces a parent class, so I will define some public information as methods and put them in the parent class. Enter the code below:
Generate cookie
public function saveCookie($info,$time){ $this->load->helper('cookie'); set_cookie("userInfo",$info,$time); //userInfo:cookie名称。$info:要保存的cookie 。$time 设置保存期,即过期时间 }
Get cookie:
public function getCookie($info){ //$info实际就是形成,调用这个方法的时候,需要获取哪个cookie名称就在调用的时候输入cookie名称 $this->load->helper("cookie"); return get_cookie($info); }
Readers who are interested in more CodeIgniter related content can check out the special topics of this site: "codeigniter introductory tutorial", "CI (CodeIgniter) framework advanced tutorial", "php date and time usage summary", "php object-oriented program" Design introductory tutorial", "php string (string) usage summary", "php mysql database operation introductory tutorial" and "php common database operation skills summary"
I hope this article will be helpful to everyone’s PHP program design based on the CodeIgniter framework.
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Cookies are usually stored in the cookie folder of the browser. Cookie files in the browser are usually stored in binary or SQLite format. If you open the cookie file directly, you may see some garbled or unreadable content, so it is best to use Use the cookie management interface provided by your browser to view and manage cookies.

Cookies on the mobile phone are stored in the browser application of the mobile device: 1. On iOS devices, Cookies are stored in Settings -> Safari -> Advanced -> Website Data of the Safari browser; 2. On Android devices, Cookies Stored in Settings -> Site settings -> Cookies of Chrome browser, etc.

The working principle of cookies involves the server sending cookies, the browser storing cookies, and the browser processing and storing cookies. Detailed introduction: 1. The server sends a cookie, and the server sends an HTTP response header containing the cookie to the browser. This cookie contains some information, such as the user's identity authentication, preferences, or shopping cart contents. After the browser receives this cookie, it will be stored on the user's computer; 2. The browser stores cookies, etc.

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The effects of clearing cookies include resetting personalization settings and preferences, affecting ad experience, and destroying login status and password remembering functions. Detailed introduction: 1. Reset personalized settings and preferences. If cookies are cleared, the shopping cart will be reset to empty and products need to be re-added. Clearing cookies will also cause the login status on social media platforms to be lost, requiring re-adding. Enter your username and password; 2. It affects the advertising experience. If cookies are cleared, the website will not be able to understand our interests and preferences, and will display irrelevant ads, etc.

The dangers of cookie leakage include theft of personal identity information, tracking of personal online behavior, and account theft. Detailed introduction: 1. Personal identity information is stolen, such as name, email address, phone number, etc. This information may be used by criminals to carry out identity theft, fraud and other illegal activities; 2. Personal online behavior is tracked and analyzed through cookies With the data in the account, criminals can learn about the user's browsing history, shopping preferences, hobbies, etc.; 3. The account is stolen, bypassing login verification, directly accessing the user's account, etc.

Common problems and solutions for cookie settings, specific code examples are required. With the development of the Internet, cookies, as one of the most common conventional technologies, have been widely used in websites and applications. Cookie, simply put, is a data file stored on the user's computer that can be used to store the user's information on the website, including login name, shopping cart contents, website preferences, etc. Cookies are an essential tool for developers, but at the same time, cookie settings are often encountered
