The session usage of thinkphp

The session method is used for session setup, get, delete, and manage operations.

Session for session settings, get, delete, and manage operations
Usage	Session ($name, $value = ")
Parameters	Name (required): If the incoming array is a session initialization, if NULL is passed in to empty the current session, the string indicates the session assignment, fetch, or operation. Value (optional): The session value to be set, if the null is passed in to delete the session, the default is an empty string
return value	See details (return different values depending on the specific usage)

The session function is a diversified operation function, which can accomplish different functions by passing in different parameter calls, including some of the following functions. [-more-]

Session Initialization settings

If the name parameter of the session method is passed in the array, the session initialization setting is used, for example:

1. Session(array(' name '= 'session_id ',' expire '=3600));

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Support for incoming session parameters includes:

parameter name	description
ID	session_id value
name	session_name value
Path	Session_save_path value
prefix	session localized space prefix
expire	session.gc_maxlifetime setting value
domain	session.cookie_domain setting values
use_cookies	session.use_cookies setting value
use_trans_sid	session.use_trans_sid setting value
cache_limiter	session_cache_limiter setting value
cache_expire	session_cache_expire setting value
Type	session hander type, can use hander driver extension

SESSION initialization setting method does not need to call manually, after the initialization of the app class is called automatically, usually the project only needs to configure the Session_options parameter, the Session_options parameter is set to an array, The supported index names are the same as the previous session initialization parameters.
By default, the system will automatically start the session after initialization, if you do not want the system to automatically start the session, you can set Session_auto_start to False, for example:

1. ' Session_auto_start ' =false

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Turn off the session by manually invoking Session_Start or session (' [Start] ') on the project's public file or in the controller after auto-start.

Session Assignment

The session assignment is relatively straightforward and is used directly:

1. Session(' name ',' value '); //Set session

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Equivalent:

1. $_session[' name '] = ' value ';

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Session value using:

1. $value = session(' name ');

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Equivalent to using:

1. $value = $_session[' name '];

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1. Session(' name ',null); //Remove name

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Equivalent:

1. unset($_session[' name ']);

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To delete all the sessions, you can use:

1. Session(null); //Clear the current session

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Equivalent:

1. $_session = array();

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To determine if a session value has been set, you can use the

1. Session('? name ');

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Used to determine if the session value named name is already set
Equivalent:

1. Isset($_session[' name ']);

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The session method supports some simple session management operations with the following usage:

1. Session(' [operation name] ');

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The supported operation names are:

Action name	meaning
Start	Start session
Pause	Pause Session Write
Destroy	Destroy session
Regenerate	Regenerate session ID

Examples of use are:

1. Session(' [pause] '); //Pause session write
2. Session(' [start] '); //Start session
3. Session(' [Destroy] '); //Destroy session
4. Session(' [regenerate] '); //Regenerate session ID

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Localized session management support can be enabled if you pass in the prefix parameter when initializing the session setting or if the Session_prefix parameter is set individually. After the localization session is started, all assignments, values, deletions, and judgments will automatically support localization sessions.
After localization session support is turned on, the session data format generated by the original

1. $_session[' name '] becomes $_session[' prefix '] [' name ']

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Assuming the prefix is set to think, the assignment operation:

1. Session(' name ',' value '); //Set session

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Equivalent:

1. $_session[' think '] [' name '] = ' value ';

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To take a value action:

1. $value = session(' name ');

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Equivalent to using:

1. $value = $_session[' think ' ['name '];

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Delete operation:

1. Session(' name ',null);

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Equivalent:

1. unset($_session[' think '] [' name ']);

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Clear operation:

1. Session(null);

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Equivalent:

1. unset($_session[' think ']);

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To determine the operation:

1. Session('? name ');

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Equivalent:

1. Isset($_session[' think '] [' name ']);

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The session usage of thinkphp