Tech Guru, Author at Technology Forum

HTTP header and Server Response Codes

May 19, 2008August 11, 2018 infoweb No Comments

Web Server

Introduction

HTTP is a transfer protocol used by the World Wide Web (WWW) to retrieve information from distributed servers. The HTTP model is extremely simple; the client establishes a connection to the remote server, then issues a request. The server then processes the request, returns a response, and closes the connection. Most HTTP communication is initiated by a user agent and consists of a request to be applied to a resource on some origin server. HTTP communication usually takes place over TCP/IP connections. The default port is TCP 80, but other ports can be used like 21 (FTP), 443 (HTTPS).

Shorthand CSS Properties

May 8, 2007May 20, 2008 infoweb No Comments

Website Formatting

The CSS can be made clean with removing the properties names as mentioned below. This can help in reducing the size of CSS in the process of development of website.

Font

Use:

font: 1em/1.5em bold italic serif
…instead of
font-size: 1em; line-height: 1.5em; font-weight: bold; font-style: italic; font-family: serif

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PHP Code Optimization

May 5, 2007February 15, 2023 infoweb No Comments

Optimization, PHP

I have found the post by Reinhold Webber, which provide good techniques and methods for PHP performance and optimization. I have tried to add more explanation to the points posted by Reinhold Webber.

1. If a method can be static, declare it static. Speed improvement is by a factor of 4.
2. echo is faster than print and print_r.
3. Use echo’s multiple parameters instead of string concatenation.
4. Set the maxvalue for your for-loops before and not in the loop.
5. Unset your variables to free memory, especially large arrays.
6. Avoid magic like __get, __set, __autoload.
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