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Setcookie () function usage in php

Source: Internet
Author: User
Tags http cookie set cookie setcookie
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The setcookie () function sends an HTTP cookie to the client.

Cookie is a variable sent from the server to the browser. Cookies are usually small text files embedded into users' computers by servers. This cookie is sent every time a computer requests a page through a browser.

The cookie name is a variable with the same name. For example, if the sent cookie is named "name", a variable named $ user is automatically created, containing the cookie value.

The cookie must be assigned a value before any other output is sent.

If the call succeeds, the function returns true; otherwise, the function returns false.

Syntax
Setcookie (name, value, expire, path, domain, secure)

Example

The code is as follows: Copy code

Makecookie ('20140901', 'www .111cn.net ');
// Clear cookie
Clearcookies ();

// A second-level domain name cookie function is supported below.

Function setcookielive ($ name, $ value = '', $ expire = 0, $ path ='', $ domain = '', $ secure = false, $ httponly = false ){
// Set a cookie as usual, but also add it to $ _ cookie so the current page load has access
$ _ Cookie [$ name] = $ value;
Return setcookie ($ name, $ value, $ expire, $ path, $ domain, $ secure, $ httponly );
}
// Call method

Setcookielive ('webb', '111cn', time () + 86000, '/', '111cn. Net ');

// Entry-level cookie setting method

Setcookie ("cookie [three]", "cookiethree ");
Setcookie ("cookie [two]", "cookietwo ");
Setcookie ("cookie [one]", "cookieone ");

// After the page reloads, print them out
If (isset ($ _ cookie ['cookies']) {
Foreach ($ _ cookie ['cooker'] as $ name => $ value ){
Echo "$ name: $ value <br/> n ";
    }
}

How to obtain the cookie in js

The code is as follows: Copy code

<Html>
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8">
<Title> Insert title here </title>
</Head>
<Body>
<Script type = "text/javascript">
// Get cookie
Function getCookie (name ){
Var nameEQ = name + "= ";
Var ca = document. cookie. split (';');
For (var I = 0; I <ca. length; I ++ ){
Var c = ca [I];
While (c. charAt (0) = ''){
C = c. substring (1, c. length );
         }
If (c. indexOf (nameEQ) = 0 ){
Return unescape (c. substring (nameEQ. length, c. length ));
         }
     }
Return false;
}

// Clear cookie
Function clearCookie (name ){
SetCookie (name, "",-1 );
}

// Set cookie
Function setCookie (name, value, seconds ){
Seconds = seconds | 0;
Var expires = "";
If (seconds! = 0 ){
Var date = new Date ();
Date. setTime (date. getTime () + (seconds * 1000 ));
Expires = "; expires =" + date. toGMTString ();
     }
Document. cookie = name + "=" + escape (value) + expires + "; path = /";
}
Alert (getCookie ('test2 '));
</Script>
</Body>
</Html>

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Related Keywords:
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