Summary of cookies and sessions

                                                                                                     

CookieStorage locationThe real file exists on the server, K exists in the browserSecurity More secure than cookies Scalar type : int, float, char, bool, nullLife cycleFor example: setcookie('school','XTU', time()+15);session.cookie_path=/setcookie(",", time()-1)1. Destroy a certain unit: (browser-to-server data The above has introduced a summary of cookies and sessions, including aspects of it. I hope it will be helpful to friends who are interested in PHP tutorials.

	Stored in the browser
		Low, easy to forge
All types except resources		Set through the third parameter
Set through the php.ini file	session.cookie_lifetime	session.gc_maxlifetime
Valid path		Settings setcookie('school','kefeng',time()+5,'/');
Depends on the effective path of the cookie can be configured in php.ini:
The valid domain name	is set by the fifth parameter string 'www.example.com'	Depending on the valid domain name of the cookie can be configured in php.ini : session.cookie_domain=
Read	$_COOKIE[' '] $_SESSION[' ']	Destroy setcookie("," , 0)
Four destruction methods:	unset($_session['school']); 2. Overall clearing: $_session = array(); 3. Use function to clear overall:	session_unset(); Principle During the data interaction between the browser and the server, the server transmits the data to the browser through the HTTP header for the next interaction. During the process
interaction) V is stored in the server , the data interacted between the browser and the server is K