The CakePHP SessionComponent provides a way to persist client data between page requests. It acts as a wrapper for the $_SESSION as well as providing convenience methods for several $_SESSION related functions.
check( string $name )
Checks if a session variable is set.
In your controller: $this->Session->check('Controller.sessKey');
$name consume( string $name )
Reads and deletes a session value for a key.
In your controller: $this->Session->consume('Controller.sessKey');
$name delete( string $name )
Deletes a session value for a key.
In your controller: $this->Session->delete('Controller.sessKey');
$name destroy( )
Used to destroy sessions
In your controller: $this->Session->destroy();
error( )
Used to determine the last error in a session.
In your controller: $this->Session->error();
id( string $id null )
Get/Set the session id.
When fetching the session id, the session will be started if it has not already been started. When setting the session id, the session will not be started.
$id optional null read( string $name null )
Reads a session value for a key or returns values for all keys.
In your controller: $this->Session->read('Controller.sessKey'); Calling the method without a param will return all session vars
$name optional null renew( )
Used to renew a session id
In your controller: $this->Session->renew();
setFlash( string $message , string $element 'default' , array $params array() , string $key 'flash' )
Used to set a session variable that can be used to output messages in the view.
In your controller: $this->Session->setFlash('This has been saved');
Additional params below can be passed to customize the output, or the Message.[key]. You can also set additional parameters when rendering flash messages. See SessionHelper::flash() for more information on how to do that.
$message $element optional 'default' $params optional array() $key optional 'flash' started( )
Returns a bool, whether or not the session has been started.
userAgent( string $userAgent null )
Get / Set the userAgent
$userAgent optional null valid( )
Used to check for a valid session.
In your controller: $this->Session->valid();
write( string $name , string $value null )
Writes a value to a session key.
In your controller: $this->Session->write('Controller.sessKey', 'session value');
$name The name of the key your are setting in the session. This should be in a Controller.key format for better organizing
$value optional null __construct( ComponentCollection $collection , array $settings array() )
Constructor
ComponentCollection $collection $settings optional array() Object::__construct() __get( string $name )
Magic method for lazy loading $components.
$name beforeRedirect( Controller $controller , string|array $url , integer $status null , boolean $exit true )
Called before Controller::redirect(). Allows you to replace the URL that will be redirected to with a new URL. The return of this method can either be an array or a string.
If the return is an array and contains a 'url' key. You may also supply the following:
status The status code for the redirectexit Whether or not the redirect should exit.If your response is a string or an array that does not contain a 'url' key it will be used as the new URL to redirect to.
Controller $controller $url $status optional null $exit optional true beforeRender( Controller $controller )
Called before the Controller::beforeRender(), and before the view class is loaded, and before Controller::render()
Controller $controller initialize( Controller $controller )
Called before the Controller::beforeFilter().
Controller $controller shutdown( Controller $controller )
Called after Controller::render() and before the output is printed to the browser.
Controller $controller startup( Controller $controller )
Called after the Controller::beforeFilter() and before the controller action
Controller $controller _mergeVars( array $properties , string $class , boolean $normalize true )
Merges this objects $property with the property in $class' definition. This classes value for the property will be merged on top of $class'
This provides some of the DRY magic CakePHP provides. If you want to shut it off, redefine this method as an empty function.
$properties $class $normalize optional true _set( array $properties array() )
Allows setting of multiple properties of the object in a single line of code. Will only set properties that are part of a class declaration.
$properties optional array() _stop( integer|string $status 0 )
Stop execution of the current script. Wraps exit() making testing easier.
$status optional 0 dispatchMethod( string $method , array $params array() )
Calls a method on this object with the given parameters. Provides an OO wrapper for call_user_func_array
$method $params optional array() log( string $msg , integer $type LOG_ERR , null|string|array $scope null )
Convenience method to write a message to CakeLog. See CakeLog::write() for more information on writing to logs.
$msg $type optional LOG_ERR $scope optional null The scope(s) a log message is being created in. See CakeLog::config() for more information on logging scopes.
requestAction( string|array $url , array $extra array() )
Calls a controller's method from any location. Can be used to connect controllers together or tie plugins into a main application. requestAction can be used to return rendered views or fetch the return value from controller actions.
Under the hood this method uses Router::reverse() to convert the $url parameter into a string URL. You should use URL formats that are compatible with Router::reverse()
POST and GET data can be simulated in requestAction. Use $extra['url'] for GET data. The $extra['data'] parameter allows POST data simulation.
$url String or array-based URL. Unlike other URL arrays in CakePHP, this URL will not automatically handle passed and named arguments in the $url parameter.
$extra optional array() if array includes the key "return" it sets the AutoRender to true. Can also be used to submit GET/POST data, and named/passed arguments.
Boolean true or false on success/failure, or contents of rendered action if 'return' is set in $extra.
toString( )
Object-to-string conversion. Each class can override this method as necessary.
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http://api.cakephp.org/2.8/class-SessionComponent.html