Hi, I have created a page on my this blog named PHP Interview Questions on which I will compile a list of questions which I normally asks to my candidates. I am not worried about leaking my questions strategy as I know only a good person can handle my supplementary questions I asked on the spot.
From now I will write about my experiences with Open Source CMSs/E-commerce Solutions everyday, I have planned to write about my projects and my work in those CMSs as a php developer.
I have planned following CMSs :
1. Joomla
2. Wordpress
3. Drupal
4. SugarCRM
5. OsCommerce
6. Magento
7. PHPbb
8. ZenCart
Of course this list will increase everyday,
As PHP is gaining the ground in India, numbers of initial level jobs are also increasing day by day. Almost every day I got questions from new comers how they can learn PHP? Which training institute is providing the training in PHP?
Unfortunately almost all major player of training industry in India, specially Delhi are still not doing much (I should nothing) in this regard.
So I am thinking about organizing PHP training camps in and around Delhi in this summer, If you would like to be in that camp, I would request you for sending a message via my contact us page.
Please give me some details about yourself and in which area of Delhi or NCR you will prefer the camp.
This question again struck me today, somebody just throw a simple question about EXPLAIN statement in MySQL and in hast I relate that to DESCRIBE. When that person cut the line of phone, I suddenly realize my mistake.
I am working with PHP and MySQL since last seven years then why this happen to me? This is because I am not using MySQL frequently, although it is the integral part of almost every application I am working on. I am fairly away from MySQL queries because I am using my factory classes or framework like cakephp which does not require me to write the SQL queries. Almost all of my operations on database are covered within my CRUD classes. Even complex select or updates are possible using simple search objects in my factory classes or framework I am using.
BUT this practice has caused a deficiency in my knowledge of MySQL statements. This situation is really horrible sometime. Do I need to stop using my factory classe practice and abstraction. I normally prefer abstraction and factory classes because I want to make my code portable to other databases also.
I am really a in fix What should I do?
BUT again another question struck me What is more important? My knowledge of MySQL statements or fast and portable execution of projects. When we got the higher level, we certainly miss the lower level details of applications.
So I will stick to my factory classes, because I know I may struggle with some academic questions about MySQL for the time being but at least I can do the stuff with just one reference to MySQL manual. Above all I may face problem in simple MySQL statements but I am good at high level things like replication and performance tuning at server level.
What you say is it a good decision?
PHP 5 is in the market since many years, but it still has to capture the market.
Why? Is it not efficient version of PHP language?
What are main reasons behind slow-adoption of PHP version 5.
I am compiling a list of reasons; you can also send me the reason why you have moved to PHP5 or why you are not able to do that?
I will write about that list in my coming articles.
In this article I am going to write my experience with a work in which I was supposed to do file upload progress bar.
First of all I consider using APC then came to know about PECL extension uploadprogress
Unfortunately both were not possible for me as I have no control on the server on which it was supposed to run.
Tweaking with installed version of PHP or up gradation of PHP was also ruled out.
In India we have a word which is very common in use whenever someone is in a deadlock, the magic word is ‘Jugad’, if simply translated into English, it will mean ’system’, but in contextual meaning it stands for ‘Smart Work’.
Well I can not claim that adjective for this work, as it has some contextual limitations but it is working solution.
Before I jump to the final details of the working structure, I would like to recollect some facts about file uploading in PHP.
Whenever you upload something via a PHP page, it gets uploaded to a temporary folder on server then programmer has to move it from there to a proper location via PHP script.
That temporary folder can be defined in php.ini file and if not defined PHP uses operating systems default temporary folder.
I have created this script with the help of Ajax.
First of all I have changed temporary folder of PHP to a folder on which I have some control so I can access that with my PHP scripts time to time. Then I have created a form to upload the file to server.
I created another PHP script to calculate the size of a particular folder and THATS’S IT application was finished.
Whenever someone hits the upload button, file upload starts to the server.Using Ajax I call my other script which that calculates the size of temp folder after every second, and then I show the updated html page with file size using Ajax.
You can call it dirty programming but it is working solution to this problem in any version of PHP.
When this solution will not work?
It will always work but in some situations may give you wrong results. This approach will not produce desired results on the servers where lots of file handling is being done via PHP and lots of people are doing file upload at one go.
Although it can be designed to have multiple file upload at same time like instead of temporary folder we can opt for calculation of particular temporary file in temporary folder and that file can be guessed by the upload button hit time, but that is not 100% usable in every situation. If lots of people are uploading the files at same time it may conflicts with each other.
Did you like this Jugad?
The proposed $350 million buyout announced in the first half April,2006 by Linux distributor Red Hat, Inc., of Java middleware maker JBoss, Inc. is seen by analysts as the first major consolidation initiative in the open source software realm that has potential to challenge the might of software giants like Microsoft and Sun Microsystems.
They admit the cash and stock deal has fallacies — The $350 million Red Hat is paying for JBoss ($420 million if JBoss hits all revenue targets) is higher than Red Hat’s $278 million in revenue for the fiscal ended 28 February. And JBoss is said to have had around $80 million in revenue during the fiscal. But, they say the scope the merged entity holds out — middleware has huge prospects — is the key element of Red Hat’s offer and it is the future that is looked at.
Read the news which discuss financial aspects of deal between Redhat and JBOSS
Sometime ago I got a mail from Gina Masongsong, who is working with Yahoo on contract position, they are looking for some people to work with Yahoo. They asked me if I know any programmer, who may be willing to work with Yahoo, so I am posting this message here. You can send your resumes to them at gmasongsong@vadoinc.com
I also have there personal number but I do not think Its proper to publish it on net. But if you want to contact them personally, you can send me a personal message, I will give number in mail to anyone who needs it.
It has been over a year since UTI Bank set up its call center that handles over 7,000 calls per day. The bank was looking for a robust platform that could guarantee it “high availability of services and uninterrupted call traffic”. It had options but finally decided on Linux for its core business applications.
“Today, we are really happy with Linux that has delivered 99.99 per cent uptime so far,” says Pritesh Thaker, AVP, IT, UTI Bank. The bank, in fact, is now planning to base its credit card-based system on Linux too.
Some Fact about Open Source Linux
Linux is expected to have a 15 per cent share of the ERP market by 2007 (Peerstone Research)
55 per cent of all companies deployed Linux by the end of 2005 (AMR Research)
There are over 1.2 million developers with Linux skills (Evans Data Corp)
IBM has more than 7000 services professionals working with Linux
A good Study at Rediff
With a high-profile executive speech at LinuxWorld and the launch of a new Web site focusing on open source, Microsoft has been cozying up to the Linux penguin this week.
Microsoft stunned LinuxWorld attendees last week by pledging to support Linux virtual machines on its Virtual Server and revealing free virtual machine additions for Red Hat Linux and Novell SUSE Linux. It wasn’t the only dogs-playing-with-cats kind of moment last week: Apple offered up software to let Windows run on Intel-based Macs.
What’s going on here? The answer is virtualization, the ability to much more easily carve up servers and PCs into compartments that can run multiple applications under different operating systems at the same time. Business interest in virtualization–particularly of servers–is picking up quickly, and vendors are racing to stake out this emerging market. The result could blur some of the hard-and-fast lines drawn between operating systems.
The appeal can be seen at RSA Security, where software engineers used to run from room to room setting up different server hardware, application, and operating system combinations to test new security products. Today, a developer tells the data center which environments are needed, and they’re created as virtual machines that can run different apps on Windows or Linux, using the same server hardware, says RSA engineering director Roy Rezac. Two or more developers’ virtual machines may even run simultaneously on one pizza-box-sized, rack-mounted server. Businesses see that flexibility lowering costs, improving load balancing, and increasing server utilization and consolidation.
Read More
In first half of April 2006, we got two big news from Open Source community, First Novell’s Open Linux will provide .NET environment support, so you can easily run .NET applications on Linux, Second RedHat Inc, the Microsoft of Linux Community has acquired JBOSS, an Application server for JAVA.
At the annual LinuxWorld Conference, Novell discusses its OpenSUSE build service as part of a new Linux build service framework that will become the development platform for future SUSE Linux distributions.
Read How Novell done this to Open Source Community
Red Hat, the world’s leading provider of open source solutions to the enterprise, announced that it has entered into a definitive agreement to acquire JBoss, the global leader in open source middleware. By acquiring JBoss, Red Hat expects to accelerate the shift to service-oriented architectures (SOA), by enabling the next generation of web-enabled applications running on a low-cost, open source platform.
“It is at Red Hat’s very core to help unlock the power of open source and open communities to innovate across industries, geographies and economies,” said Matthew Szulik, Chairman and CEO of Red Hat. “Red Hat and JBoss are fully aligned around the belief that the open source development model continues to change the economics of enterprise IT in favor of the customer, and we truly believe in the potential of software innovation, once freed from the fetters of proprietary development.”
Read Official Annoucement on JBOSS
