Home arrow PHP arrow An Introduction to Sockets in PHP

An Introduction to Sockets in PHP

Working with low-level sockets can be a painful task in PHP. Fortunately, PHP offers a nice library of socket handling functions to make your life easier. If you do a lot of network programming in PHP, you will want to check out this three-part series, which starts with the basics and takes you through more advanced approaches. This article is the first one in the series.

  1. An Introduction to Sockets in PHP
  2. The basics of low-level sockets: developing an illustrative example
  3. Reading and writing socket data: creating a simple web-based client application
  4. Reusing the TCP server: defining the "createSocketServer()" function and "SocketServer" class
By: Alejandro Gervasio
Rating: starstarstarstarstar / 33
May 22, 2006

print this article




In the vast and exciting terrain of network programming in PHP, working with low-level sockets can be a cumbersome task. Most of the time, when you are developing a Web application, you do not go very deep into the manipulation of the lower-level features of a network operating system.

If you've been using sockets in PHP, you probably know what I'm talking about. Writing, reading and controlling socket streams can be achieved well enough with the help of a comprehensive set of native PHP functions, such as the popular "fsockopen()", and "fputs()/fgets()" functions, and eventually the use of an iteration routine. This sounds relatively simple, and certainly will suit most of your socket programming needs. However, there are times when the requirements of a specific PHP project demand using low-level sockets, in order to implement, for example, a testing TCP-based server, and the corresponding client applications that will interact with it.

In order to tackle this kind of situations (and many more, by the way), luckily PHP offers a nice library of socket handling functions, which can be used to create server and client applications, manipulate data streams, and perform many more tasks related to low-level network programming. With reference to using sockets in PHP, in this three-part series, I'll try to cover their most crucial aspects. I'll start with the basics, such as creating, opening and closing a socket. Then I will proceed to using advanced approaches, such as implementing socket servers. Of course, I'll accompany this material with numerous hands-on examples.

At the end of this series, you should be equipped with a good grounding in how to use and manipulate low-level sockets in PHP, in order to expand your existing background of network programming.

Now that you know the topics that will be discussed over this series, it's time to leap forward and begin learning the fundamentals of low-level sockets in PHP. It's going to be instructive, so let's get started.

>>> More PHP Articles          >>> More By Alejandro Gervasio

blog comments powered by Disqus
escort Bursa Bursa escort Antalya eskort


- Hackers Compromise PHP Sites to Launch Attac...
- Red Hat, Zend Form OpenShift PaaS Alliance
- PHP IDE News
- BCD, Zend Extend PHP Partnership
- PHP FAQ Highlight
- PHP Creator Didn't Set Out to Create a Langu...
- PHP Trends Revealed in Zend Study
- PHP: Best Methods for Running Scheduled Jobs
- PHP Array Functions: array_change_key_case
- PHP array_combine Function
- PHP array_chunk Function
- PHP Closures as View Helpers: Lazy-Loading F...
- Using PHP Closures as View Helpers
- PHP File and Operating System Program Execut...
- PHP: Effects of Wrapping Code in Class Const...

Developer Shed Affiliates


Dev Shed Tutorial Topics: