27 Jan 09 A Beginner’s Guide to Object Oriented Programming (OOP) in PHP5 – Classes, Objects and Methods

***Guest Blogger***
The Personal Home Page (PHP) programming language provides a lightweight framework and foundation for Web application development. It runs on Apache (HTTP) Web server software amonst others, embedded into Hypertext Markup Language (HTML), passed through a Hypertext Preprocessor. As free, open source software – it has low implementation, maintenance and debugging costs. Its latest iteration called PHP5, has incorporated even more powerful object-oriented programming functionalities.

While PHP3 has rendered server-side scripts and PHP4 has established backward compatibility, PHP5 has improved object-oriented programming (OOP) as a cross-platform language. OOP bundles data and code into “objects”. PHP5 works better with object handles; passing or assigning by reference is not required.
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Tags: array, class, method, object, object oriented programming, oop, PHP, php5

15 Jan 09 PHP – fsockopen, TCP and UDP

PHP comes preloaded with a good socket handling function set. Using fsockopen to make HTTP connections however is in most cases obsoleted as the php-curl and set of curl functions covers more HTTP related stuff than you could ever need! fsockopen is available in both PHP4 and PHP5

Regardless, to cover the most basic usage of fsockopen, to establish a TCP connection to “mailserver” on port 110 (POP3):
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Tags: fsockopen, http, PHP, php4, php5, SSL, tcp, tls, udp

07 Oct 08 PHP, MySQL, Apache2 install HOWTO on Debian

Setting up a PHP/MySQL/Apache2 environment on Debian is really easy, and as a PHP MySQL Developer, it’s kinda important! I’ll walk through a quick Debian lamp install howto and optimization process. I’ve optimized it for a 1.5Gb to 2GB RAM machine with reasonable load.

Now download eaccelerator from http://eaccelerator.net
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Tags: apache2 optimization, debian, Debian lamp install howto, Development, LAMP, LAMP Optimization, MySQL, mysql optimization, Optimization, PHP, PHP Developer, PHP MySQL Developer, php optimization, php5, Programmer

14 Sep 08 Linux virtualization, vmware, xen, hosting, and squeezing the most out of your resources

I’d guess that 90% of hosting providers ‘oversell’. This essentially means that should they have 1,000GB allocated, they might offer 15 packages of 100Gb to 15 of their customers, banking on the fact that no one will fully use their 100GB allocation – Selling 5 Virtual Machines with 256MB RAM on a 1GB host, assuming that no one will use their full RAM allocation. This is bad, because you’ll generally be able to confirm that you’ve been allocated the resources, but nonetheless benchmark tests will show that you’re just not getting them, and your environment will be sluggish and unresponsive. This is the same as airlines selling 110 seats on a 100 seat plane. When that 101st paying customer does show up to claim his seat, he’s stuck without a flight.

The general consensus is that a VPS is a cheaper and lower-grade option than a dedicated service, however VPSs have a number of undisputable advantages over dedicated servers and I’m going to discuss why almost all the dedicated machines I manage are hosts for a range of VPSs.
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Tags: 10mbit, adamsinfo.com, advantages, allocation, apache2, backup service, benchmark, bind, cheap, client, co-locate, colocate, config, CPU, datacenter, debian, dedicated, dedicated servers, disk access, disk IO, endpoint, environment, exim, host, Hosting, hosting providers, Intel, kernel, kernel upgrade, mailserver, mppc, mppe, MySQL, named, noc, oversell, packages, php5, pptp, processor type, Quad Core, racks, reboot, remote services, routing, seek time, spamassassin, system administrator, tick speed, virtualization, vmware, vmware free server, vmware gsx, VPN, vps, xen, Xeon