PHP4 a new session support than PHP3. A little bit, for its function interface, the internal mechanism,
A general understanding of the convenience of the application.
The meaning of the session everyone should be aware that a session can include a number of HTTP requests and responses,
For example, we use 163.net, from login to logout or timeout as a session,session
is typically a unique session ID within the system, typically a very long
String. A session in addition to the session ID, you can also have their own session data, you can
Record and differentiate the different states of sesion.
The PHP4 provides the following interfaces for session operations:
Session_start-initialize Session Data
Session_destroy-destroys all data registered to a session
Session_name-get and/or set the current session name
Session_module_name-get and/or set the current session module
Session_save_path-get and/or set the current session save path
Session_id-get and/or set the current session ID
Session_register-register a variable with the current session
Session_unregister-unregister a variable from the current session
Session_is_registered-find out if a variable are registered in a session
Session_decode-decodes session data from a string
Session_encode-encodes the current session data as a string
Meaning everyone can see, Session_Start began a Session,session_destroy knot
Bundle a session,session_id to get the current session_id,session_register to the current
Session to register a variable, this is useful, such as users go shopping malls, selected some of the products you
You can use Session_register to register the product name or code with the current session.
For example (excerpt from PHP manual):
Session_register ("Count");
$count + +;
?>
Hello visitor, you are seen this page Times.
# necessary to preserve the session ID
# in the case, the user has disabled cookies
To continue, ' >click here
Session_register can implicitly excite session_start (if the user has not previously sent Session_
Start call), the current session registers a variable count, each time the user clicks the click here
, this variable will increase by one. You can try it yourself. The meaning is not much to repeat.
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