Introduction and example application of php setcookie_PHP tutorial

The setcookie() function sends an HTTP cookie to the client. A cookie is a variable sent to the browser by the server. Cookies are typically small text files that a server embeds on a user's computer. This cookie is sent each time the computer requests a page through the browser.

The setcookie() function sends an http cookie to the client.

A cookie is a variable sent by the server to the browser. Cookies are typically small text files that a server embeds on a user's computer. This cookie is sent each time the computer requests a page through the browser.

The name of the cookie is specified as a variable of the same name. For example, if the cookie being sent is named "name", a variable named $user will automatically be created containing the cookie's value.

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

This function returns true if successful, false otherwise.

Grammar
setcookie(name,value,expire,path,domain,secure)

*/
$cookieinfo=session_get_cookie_params(); //Get cookie information
if((empty($cookieinfo['domain']))&&(empty($cookieinfo['secure']))) //Check whether the result is empty
{
setcookie(session_name(),'',time()-3600,$cookieinfo['path']); //Set cookie
}
elseif(empty($cookieinfo['secure'])) //Check whether the option is empty
{
setcookie(session_name(),'',time()-3600,$cookieinfo['path'],$cookieinfo['domain']); //Set cookie
}
else
{
setcookie(session_name(),'',time()-3600,$cookieinfo['path'],$cookieinfo['domain'],$cookieinfo['secure']); }
//session_destroy();                                                                                                                                              Log out session
print_r($_session);
print_r($_cookie);

//Use session_set_cookie_params to set the lifetime and path

session_set_cookie_params(0,'/yourpath/'); //Set the cookie lifetime and path

/*

Note: The value of the cookie named "user" can be accessed via $http_cookie_vars["user"] or $_cookie["user"].

Note: When sending a cookie, the cookie value is automatically url encoded. URL decoding is done on reception. If you don't need this, you can use setrawcookie() instead.

*/

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