Rasmus Schultz mindplay-dk

This page provides a full overview of PHP's SessionHandler life-cycle - this was generated by a set of test-scripts, in order to provide an exact overview of when and what you can expect will be called in your custom SessionHandler implementation.

Each example is a separate script being run by a client with cookies enabled.

To the left, you can see the function being called in your script, and to the right, you can see the resulting calls being made to a custom session-handler registed using session_set_save_handler().

Approaches to modeling

In this short write-up, I will briefly summarize the types of modeling I have seen and attempted over the years, highlighting some of the advantages and drawbacks of each, ending with a conclusion explaining which one I prefer and why.

1. Bare Models

Example LESS file:

.layout {
    .row();    
    background: #ddd;
}

.nav {
 .col(4);

	/// This interface defines an event listener
	interface Listener<Event> {
	(event: Event): void
	}

	/// This interface represents a hookable type
	interface Hookable<Event> {
	/// Attach a handler to this hookable
	(handler: Listener<Event>): void
	}

	type Handler<TEvent> = (event: TEvent) => void;

	interface Hook<TEvent> {
	(handler: Handler<TEvent>): void;
	send(event: TEvent): void;
	}

	function hook<TEvent>(): Hook<TEvent> {
	const handlers: Array<Handler<TEvent>> = [];

	/**
	* Basic UUID v4 creator
	*/
	abstract class UUID
	{
	/**
	* @type string path to the dev/urandom device on Linux
	*/
	const DEV_URANDOM = '/dev/urandom';

	module cookie {

	export function read(name: string) {
	var result = new RegExp('(?:^\|; )' + encodeURIComponent(name) + '=([^;]*)').exec(document.cookie);
	return result ? result[1] : null;
	}

	export function write(name: string, value: string, days?: number) {
	if (!days) {
	days = 365 * 20;

	/**
	* jQuery wrapper/plugin for console functions in FF/IE/Chrome.
	*
	* These functions execute silently when no console is available, so
	* you can safely leave diagnotics calls in place during development
	* and beta-testing.
	*
	* Examples:
	*
	* $.log('Hello, World.',1,2,3);

	<?php

	// Sample implementation of a FilterInterface apadater for Conduit (UNTESTED)

	use Phly\Conduit\MiddlewareInterface;
	use Psr\Http\Message\ServerRequestInterface as Request;
	use Psr\Http\Message\ResponseInterface as Response;
	use Psr\Http\Message\FilterInterface as Filter;

	class ConduitFilterAdapter implements MiddlewareInterface

	<?php

	use mindplay\walkway\Route;
	use Phly\Conduit\MiddlewareInterface;
	use Phly\Conduit\MiddlewarePipe;
	use Phly\Http\Server;
	use Psr\Http\Message\ServerRequestInterface as Request;
	use Psr\Http\Message\ResponseInterface as Response;

	require __DIR__ . '/vendor/autoload.php';