openPNE common methods sharing_PHP tutorial
'asdfgasgsad'));?>This sentence means to include '_sidemenu.php' and pass it to its page For series parameters, the '_sidemenu.php' page can directly use the value in the $form variable
op_include_box('vote_question_create_box','asdfasdf',array(' title'=>'Create question','moreInfo'=>array('Create question',link_to('Create question 2','@my_index'))));
?>
< ;?php
op_include_box('vote_question_create_box',get_slot('pager'),array('title'=>'Create question','moreInfo'=>array('Create question',link_to('Create question 2','@my_index'))));
?>
'vote_question_create_box' is just a mark, 'asdfasdf' or get_slot('pager') is to be output Go to the information under the title on the page (to include slot in this method, you can only use get_slot(), not include_slot(),
And to include slot in the page, you must use include_slot())
The third array The key name title in the parameter is fixed and is the title displayed by the 'vote_question_create_box' section. The 'moreInfo' key name that follows is also a fixed key value and the array corresponding to the fixed key value is a list of displayed content
Set a slot paragraph
php include_slot('pager'); ?>Includes the specified slot paragraph. The set slot paragraph must be included to be displayed on the page
op_include_form('vote_question_from',$ form,array('title'=>'Edit question','url'=>url_for('@vote_update?id='.$form->getObject()->getId()),));
?> Contains a form object, 'vote_question_from' is the identification name, $form is the form object passed by the corresponding action, and the third array parameter title key value and url key value are fixed, corresponding to the displayed title. The corresponding action content of the name and form submission path
is
public function executeEdit(sfWebRequest $request){
$object = $this->getRoute()->getObject() ;
//If it is not the author, 404 is displayed on the screen
$this->forward404Unless($this->getUser()->getMemberId() == $object->getMemberId());/ /$object->getMemberId() is the member_id field value of the record corresponding to the passed id value
$this->form = new VoteQuestionForm($object);
//Access this action path http://localhost/openpne/web/vote/edit/1
}
?>
Hyperlink used to page forward and backward during paging
$pager comes from $this->pager in the action = Doctrine::getTable('VoteQuestion')->getListPager($request->getParameter ('page'));
Contents in the getListPager() method of class PluginVoteQuestionTable↓
class PluginVoteQuestionTable extends Doctrine_Table
{
public function getListPager($page = 1, $size = 20)
{
$query = $this->createQuery()->orderBy('updated_at DESC');
$pager = new sfDoctrinePager('VoteQuestion',$size) ;//Create a paging object for a certain table and pass a value of how many records are displayed on each page
$pager->setQuery($query);//Pass a query statement object
$pager->setPage ($page);//Suppose the number of displayed pages is returned
$pager->init();
return $pager;
}
}
?>
Corresponds to the foreground page's perusal of the paging result set
getResults() as $item): //Use the openPNE paging mechanism to obtain the specified paging The result set is read through each record?>
- getUpdatedAt(),'f') //'f' Represents a display format?>
< ;dd>getTitle(),count($item->getVoteAnswers())),'@vote_show?id=' .$item->getId()) ?>
getId()) ?> Equivalent to sdsfg
The table name is camel case and underlined in the database, and the same is true for the field name
Link
Even if you don’t use the method, you can directly write the web/post ==== module name/action name ==== or the path behind the web set in the route in action="."
$this->tasksObject in action = $this->getRoute()->getObject();
$this->getRoute()->getObject(); //Get the information object in the table corresponding to the passed id parameter value. You can get the field value through get+field name(), such as $tasksObject-getId() on the page;
As for how to determine which one is obtained The table is determined when setting the action route through the routing class. The following example determines the vote_question table
Example
class opVotePluginFrontendRouteCollection extends sfRouteCollection
{
public function __construct( array $options)
{
parent::__construct($options);
$this->routes = array(
'vote_edit' => new sfDoctrineRoute(
'/vote /edit/:id',
array('module' => 'vote', 'action' => 'edit'),
array('id' => 'd+', 'sf_method ' => array('get')),
array('model' => 'VoteQuestion', 'type' => 'object')
),
);
}
}
?>

Reasons for PHPSession failure include configuration errors, cookie issues, and session expiration. 1. Configuration error: Check and set the correct session.save_path. 2.Cookie problem: Make sure the cookie is set correctly. 3.Session expires: Adjust session.gc_maxlifetime value to extend session time.

Methods to debug session problems in PHP include: 1. Check whether the session is started correctly; 2. Verify the delivery of the session ID; 3. Check the storage and reading of session data; 4. Check the server configuration. By outputting session ID and data, viewing session file content, etc., you can effectively diagnose and solve session-related problems.

Multiple calls to session_start() will result in warning messages and possible data overwrites. 1) PHP will issue a warning, prompting that the session has been started. 2) It may cause unexpected overwriting of session data. 3) Use session_status() to check the session status to avoid repeated calls.

Configuring the session lifecycle in PHP can be achieved by setting session.gc_maxlifetime and session.cookie_lifetime. 1) session.gc_maxlifetime controls the survival time of server-side session data, 2) session.cookie_lifetime controls the life cycle of client cookies. When set to 0, the cookie expires when the browser is closed.

The main advantages of using database storage sessions include persistence, scalability, and security. 1. Persistence: Even if the server restarts, the session data can remain unchanged. 2. Scalability: Applicable to distributed systems, ensuring that session data is synchronized between multiple servers. 3. Security: The database provides encrypted storage to protect sensitive information.

Implementing custom session processing in PHP can be done by implementing the SessionHandlerInterface interface. The specific steps include: 1) Creating a class that implements SessionHandlerInterface, such as CustomSessionHandler; 2) Rewriting methods in the interface (such as open, close, read, write, destroy, gc) to define the life cycle and storage method of session data; 3) Register a custom session processor in a PHP script and start the session. This allows data to be stored in media such as MySQL and Redis to improve performance, security and scalability.

SessionID is a mechanism used in web applications to track user session status. 1. It is a randomly generated string used to maintain user's identity information during multiple interactions between the user and the server. 2. The server generates and sends it to the client through cookies or URL parameters to help identify and associate these requests in multiple requests of the user. 3. Generation usually uses random algorithms to ensure uniqueness and unpredictability. 4. In actual development, in-memory databases such as Redis can be used to store session data to improve performance and security.

Managing sessions in stateless environments such as APIs can be achieved by using JWT or cookies. 1. JWT is suitable for statelessness and scalability, but it is large in size when it comes to big data. 2.Cookies are more traditional and easy to implement, but they need to be configured with caution to ensure security.


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