Wednesday, December 1, 2010

MySQL Mistakes by PHP Developers

Database is a vital part of most needed for almost all applications there are. If PHP is what you are using, it is most likely MySOL that you are using. MySQL is an essential part of LAMP stack.

For a lot of developers, PHP is quite easy to write. Functional codes, to developers, can be written in a few hours. But to be able to build a concrete and reliable database can surely take a lot time and excellent skills.

It is important to take note of the most common MySQL mistakes made my PHP developers.

Ø The usage of MyISAM instead of InnoDB

MySQL hold a number of engines f database, but it is very common for anyone to encounter MyISAM or InnoDB.

MyISAM is commonly used not by choice but by default. But if you are not creating a simple or investigational database, it is wrong to use MyISAM, simply because it does not support constraints and transactions of foreign keys, which cannot be taken for granted because they are ne f the fundamentals of data integrity. Added to this, each time a record is updated and inserted, the whole table is protected with a lock and of its effects takes on the performance during further usage.

Ø PHP MySQL functions usage

PHP has been a provider of functions for MySQL from the beginning. A lot of applications depend on mysql_query, mysql_connect, mysql_fetch_assoc and many more. But it is written on the PHP manual that if you use version 4.1.3 of MySQL or anything later than that, it is highly recommended to use extension of mysqli as a substitute.

Improved MySQL extension or the mysqli has a lot of advantages: You get an optional interface that is object-oriented, various statements & support for transaction, and statements prepared that can help prevent attacks of SQL-injection and at the same time, boost performance.

If you would want to support various databases, you should consider using PDO as an alternative.

Ø Choosing not to sanitize User Input

Ø Choosing not to use UTF – 8

Most developers from Australia, Uk and US very seldom consider the usage of non-English language. In effect, we go on with our masterpiece and finish and alas, we cannot use it in any other places. That is why using UTF – 8 can help in solving a lot of problems that have something to do with internationalization. Its usage can be hard for non-PHP version 6.0 but the number of things to prevent is lowered when you set your MySQL character to UTF – 8

Ø Ditching SQL over PHP

It is very much enticing to solve equations in the language you are familiar with especially if you have just started using MySQL. But that can very much bring you to unwanted and a lot slower code. For instance, instead of choosing to use MySQL’s local AVG () function, you resort to using a loop of PHP to compute an average through adding up all record-set values.

It would be good to watch out for queries of SQL within loops of PHP. It is normally much more effective to make a query run and then use loop for the results.

So generally, utilizing the strong points of the database for data analyzing is good. A little know-how on SQL goes a longer way than you think.

Ø Choosing not to optimize the queries

Big percentage of the problems in PHP performance revolves is a cause of the database and just one not-so-good SQL query can cause problems to your process of web application. You can look up that rogue select in either MySQL’s EXPLAIN statement or Query Profiler.

Ø Incorrect data types usage

MySQL offers an array of time data types, numeric and string. If it is date you are storing, use DATETIME of DATE field. Using either string or integer can complicate SQL queries or worse, painfully impossible.

It is enticing to make an inventin of your very own formats of data. For instance, storing PHP objects that are serialized. Database management has a chance to be easier, but MySQL will turn into a senseless data store and may lead to possible problems.

Ø Usage of “*”for SELECT queries

DO NOT ever use * to put back all of the columns to a table. That is certainly a lazy way to do it. You should only extract the data needed. Your tables are susceptible to inevitable change even if you have ever field required.

Ø Wrong indexing

In general rule, indexes are applicable to any column and should be applied. This talks about columns named under the SELECT query WHERE clause.

For instance, let’s say we have a usertable that has a numeric ID and one email address. The correct ID must be located by MySQL during log on, through email search. If you have an index, fast type of search algorithm can be used by MySQL. This is to instantly locate the email. But if you do not have an index, every record in sequence must be checked by MySQL until the address is located.

Ø Not reminding oneself to back up

Though failing databases may be rare, it can still happen. Hard Disks can be put on halt and servers can crash. Servers can also all bankrupt. To lose MySQL data can be painfully disastrous. So do make sure that you have automated backing up or a replica in place.

Ø Not being able to put other databases in to account!

It is possible that MySQL is the mostly what PHP developers use. But it is never the only choice. FireBird and PostgreSQL stand close as MySQL’s competitors. Both of which are open source and uncontrolled by any sort of corporation. SQL server expresss is provided by Microsoft. 10g Express is provided by Oracle. These two are versions from editions of bigger enterprise and they are FREE, and not to mention SQLite which may be a feasible replacement for applications that are smaller or embedded.

Wednesday, October 6, 2010

Google Indexing Services

Google being one of the major search engines, collects, analyzes, and stores data in order to find information quickly and accurately. Typical index design includes categorizing of websites based on the textual content for quick retrieval on request by the web user. While vocabulary plays a major role in Google indexing, a few other content types like video, audio, and graphics are also indexed.

Google robot analyzes every page it crawls to produce a voluminous index of all obvious words along with their location on each page. Furthermore, the process information presented on labels and key attributes including title tags and alt img tags. Google bot has the ability to process a variety of content, but a few types, such as media archives and dynamic pages.

Google Indexer

Googlebot crawls the full text of the pages it finds and delivers the information to Google indexer, which in turn stored in the database of Google. This index is arranged in an alphabetical manner according to the search terms and location. This arrangement of data ensures quick access to documents containing the keywords used during a request.

In order to enhance performance stop words which are usually common words, single letters, and numbers are avoided from being indexed. A few other features discarded by the Google indexer include punctuation and spaces. It also converts the alphabet into lowercase.

The whole process is share among three vital components namely, googlebot, indexer and the query processor.

Google Indexing Service

In a website life cycle getting indexed by Google is a crucial phase. Without being indexed in Google it is a tough task to promote your website. This were our service comes in to assist you in getting your website indexed by Google using strategic tools. Getting indexed in Google is certainly synonymous to opening the threshold for your potential buyers.

Google will list your website only if your website is indexed by Google. There are several flaws that could prevent your site from getting indexed in Google.

Note: Don’t trust websites that guarantee Google indexing because it is Google’s right to approve or deny approval of websites. This is why we do not give assurance when it comes to indexing and listing of your websites in Google. However, this rarely happens when you adhere to Google’s terms and policies.

Open Source application - what is it?

Open source is defined as a set of practices in production and development arena that provides access to source materials. It has a different view among the audience while a few conceive it as philosophy; some visualize it as a practical approach. Before the advent of the term open source, there existed a variety of terms to explain the concept. With required growth in the internet technology and emergence of massive retooling in source code, the new term open source established it grounds as an apt phrase to explain the environment that allows a free and fair practice among the developers and producers.

An open source application program package is something for which the source code is accessible for download and anyone can alter it and release subsequent renderings by mentioning the version of the source used for modification. Open source software is commonly formulated as a public coaction and made freely accessible.

Open Source Initiative (OSI) owns the open source certification mark. Developers of applications can freely share, improve, or redistribute the applications if they comply with the terms of OSI.

The distribution open-source software must comply with several of the terms of OSI and the following some of the important ones:

  • The software that is being circulated must be made available to anybody without any kind of limitation.
  • The source code of the software must be provided in order to enable the receiving party to make any improvements or required modifications. It is a must to attach source code and allow distribution of source code in compiled form. In case there source code is not included with the product then the origin of source code and downloadable version should be made available. The source code should be in the preferred form and should be editable for modification. Any derivation work from the original source and redistribution must be allowed under the similar terms as the original software.
  • The license can demand amended versions of the software to bear a distinct name or edition from the archetype software. The license shall not restrict any sort of commerce in giving off the software as a division of an aggregative software arrangement containing programs from individual diverse sources. In such a sale the license does not require royalty or other fees.

In simplified terms open source is simply a set of programs that are available to the general public free of cost. The user is empowered with the rights to use, or modify the software to necessary levels provided they provide the source used to create the changes. In fact the open source is a collaborative effort which continually aims at the betterment of programs and to share it with fellow users within the community.

In general OSI certification is to suggest that the software is available freely to the users. The principle of this association is not to claim ownership or work toward a financial gain but to produce bug-free and improved quality products for universal use. This has certainly given the impetus in the production of fascinatingly high quality products with tremendous software evolution. While it takes a long time for commercial firms to eliminate bugs, open source has indeed achieved a quick remedy with literally no expense on the part of users.

Joomla Web Development

It is a well known fact that joomla content management system is the latest buzz among the web developers. Most of the powerful online web applications are being developed and made available free of cost for the general public by the ever growing joomla community. This open source coded in PHP is highly customizable and robust.
Joomla CMS apart from getting you the best cutting-egde software is highly extensible. The Joomla development community that is on dramatic growth continually works toward addition of modules. The relatively large group of developers has created innumerable functionalities unique for the Joomla CMS.

The role of Joomla developers in the community include various roles such as creating design modules, integrating them in PHP websites, publishing latest news and information on the intranet, integration of organizational tools, creation of joomla themed templates, development Joomla website CMS, and other components such as shopping cart etc.
Here’s the list of some of the powerful plug-ins and extensions that have made joomla the most preferred open source CMS.
  • User management and access restriction according to hierarchy
  • Weblog management
  • Form builders and form management extensions
  • Forum extensions
  • Ad systems
  • E-commerce extensions
Would you intend to utilize Joomla to power you online business we have the required expertise to make you stand out of the crowd. Here we list out some of the benefits of hiring our services.

Overview of Joomla CMS

Joomla is an adorable content management system that empowers one to create websites and highly usable online applications. Various features such as user friendliness and easy extensibility have popularized Joomla as admirable open source software.
The early version of Joomla (Joomla 1.0.0) was released in the year 2005. This was indeed a re-branded venture of Mambo 4.5.2.3, however, fluxed with other bug and moderate-level security fixes. Joomla also has the feather to its cap as one of the most downloaded open source software in the very first year of its release. With over five thousand free and commercial plugins Joomla has become the favorite CMS among the users.

Joomla is a costless and open source content management system designed especially for web publications. It comprises a model–view–controller (MVC) Web application framework, which can be independently used as well.
Joomla is codified in PHP, storages data in a MySQL database and has characteristics such as page caching, RSS feeds, printable versions of pages, blogs, polls, searches, and international language support.

Joomla is highly helpful in creating and maintaining an integrated, pliable website/portal, add and edit out contents, alter look and feel of website, syndication of news, and the like.
Joomla utilizes the PHP scripting language and stores the data in a MySQL database. Since both configuration and publication can be done via browser, you need not be an expert in either PHP or HTML.

Creating websites has become a cake walk to designers because they simply have to combine modules to create excellently performing websites. Even people without the basic knowledge of PHP or HTML can easily construct websites using this benevolent open source software. It is easy to customize the templates as all of the modules such as RSS feeds, polls, and language internationalization are available on demand. Apart from being highly efficient in the internet, Joomla can also be used as an effective communication tool in the intranets.

It requires one-time installation and after that administrators can login and set up sections, categories and other required items such as polls etc. The WYSIWYGW feature of Joomla enables users to edit the content with ease. Although not necessary if you have some basic HTML knowledge you can take your website to heights of imaginations through your customization abilities. Best of all is the kind of help you get from the Joomla community that is ready to help out novices anytime.

Affordable Pay per click PPC services

Pay per click or PPC is a form of online advertisement strategy that improves the visibility of your website for a wide range of keyword search in websites and search engines. The beauty of PPC is that the advertiser need to pay only when someone clicks on their ads.

According to PPC rules, you are liable to pay only for clicks that meet the requirements of the target site based on the rate agreed per click prior to the service. Well-known PPC ad alternatives are as follows: per-click advertising networks, search engines, and affiliate programs. PPC is also sometimes charged on pay per impression or paying per action depending on the terms of the advertiser. This you can determine depending on the traffic and financial abilities.
We assist you in choosing the right option that could benefit you the most while choosing your PPC ads.

There are different models of PPC programs for example on websites the advertiser need only to pay for the clicks obtained from the host site. In search engines you have to bid on desired keywords and phrases relevant to your niche. However, content websites on the other hand charge a fixed rent for links than using a bidding system or per click charges.

Affiliate models on the other hand focuses on leads that initiate a sale irrespective of the volume of traffic generated by the host. This is known as performance pay model and the affiliate is paid only if a sale is completed successfully by the lead generated from the host site.
At this juncture is good to have an idea about the flat rate system and bid based charging systems in PPC.

In the Flat rate model both the advertiser and the publisher agree on a sum that will be paid for each click received. Often times the publisher has a rate cards showing the price of CPC in various areas of their sites or networks. These different rates are often linked to the content pages, which generally attract unique visitors on the particular niche. However, we will utilize our marketing personnel with negotiation skills to considerably reduce the CPC on your behalf if you are planning a long term contract.

On the other hand bid-based PPC model, you will have to compete with other advertisers and usually the highest bigger wins. If you aren’t sure about this model we can help you in securing hot spots in search engines by wisely bidding on your behalf.

Since PPC is considered risky by many beginners, it is always wise avail the services of experts and we are there to assist you in your PPC ad campaigns for a nominal fee. Contact us immediately and grow you business with our help.

Joomla Web Design

Are you on the lookout for one of the following web design services for Joomla website?

•Creation of Joomla CMS websites from the scratch
•Customize website design for Joomla templates
•Conversion of PSD, PNG, AI, BMP, TIFF, and JPEG formats into Joomla templates
•Include functionality to your existing Joomla websites

We have the expertise to accomplish every one of the task to your complete satisfaction. When it comes to creation of Joomla CMS websites from the scratch, our expert web design team carefully follows your instructions and meticulously brings alive the imaginations in your mind into reality. While the look and feel of your Joomla theme is maintained in a pristine manner according to your wishes, the coding is manually done to make it search engine friendly. The charges depend on the complexity of the design involved and the type of functionalities you website may require.

In the case of Joomla website template customization, you have the freedom to choose your template from our gallery or mail to us a template you have purchased anywhere. We take the utmost care to incorporate the required changes to your Joomla template the way you want. You can let us know the purpose of your website and we shall advice you on the functionalities that will help your website perform great. We also will make the codes for search engine compatible and present you a perfect Joomla website.


While custom design could be time consuming, and joomla templates often redundant, it is a good idea to convert your designs into fully functional joomla websites. If you are adept in designing and would like us to encode your designs, all you need to do is create a design in any of the following formats PSD, PNG, AI, BMP, TIFF, and JPEG and our programmers can transform them into completely functional joomla themes. This is a sure fire method to get exactly what you need for your online business.

Adding required functionalities according to your specifications can also be done at affordable costs. Whatever, your requirement is you can always find a suitable module available in the Joomla community and we are committed to enhance your existing joomla websites for the betterment of your online business.

We see to that our Custom Joomla templates comply fully with latest W3C standards. Some of our renowned services include Joomla website design, application development, open source customization, Portal development, e-commerce site with shopping cart, and the like.

Friday, May 21, 2010

Hunting the skilled web developer

To prevail better in a business, web presence is mandatory. Website developers are now offering interactive portals for e-commerce and the fact has been true, in this time of recession also web based transactions have been les affected. Sydney web developers are now well aware of the techniques that make a site better. Not only in Australia, but across Asia Pacific the Sydney web development companies have gained high popularity.

The web developers nowadays offer complete design and technical services and as a result it becomes easier to get the get complete solution for e-presence from a single source. Quality of different web sites may be different and these sites are basically customized as per the business requirements. We can consider that site of a sport good seller definitely will vary with that of a cloth merchant. The Sydney web site developers get an edge over the other web developers in terms of aesthetic sense.

While developing a web site it is indeed essential to have a strong aesthetic sense and a feel towards artistry. Look and feel of a site can have a strong impact on businesses. The use of technology at the same go will vary. A site created with just HTML or with the use of Hyper Text Markup Language with varies with other sites developed with the tools like ASP and PHP. So, look and feel of a web portal may depend upon usage of technology.

The web developers of Sydney are skilled and have immense experience. Basically there are different school of multimedia and craft in New South Wales and Southern Cross regions of Australia. Besides recruiting the experienced professionals the web design companies of Sydney recruit the fresh web site developers from the reputed schools of designs. The fresh web developers come up with lots of energy and innovative ideas and clubbing them with the views of the experienced and professional web developers, the clients get the best solution for online presence.

Most of the Sydney web developers emphasize on cheap customer service and support after launch of the web portal. With changing business needs of the clients they even customize and alter the sites at affordable rates. There can be different ways of selecting a web site, the web site design companies may offer ready to use templates and these templates may be tailored as per business needs. Again complete portal can be designed and developed. During the development the clients are repeatedly consulted.

Many web development companies offer online quotes and these quotes can be availed just by providing few of the necessary information online. The enthusiastic professionals and the web developers are well aware of the changing interfaces. In case of any doubts, it is best to get in touch with the Sydney web developers by sending mails to there offices.

Selecting a best web designing company is indeed easy when searched with the use of a popular search engine. The good sites are seared more and ranks better, a better rank in the search engine is an indicator. There are different online resources and different web developers provide opinion in various discussion forums. Self research is advisable as it can safeguard against any wrong step.



Article Source: http://www.articlesbase.com/web-design-articles/hunting-the-skilled-web-developer-887950.html



About the Author

Sigma InfoTech is an Australian based Web Design firm specialising in Website Design, Website Development, Application Development, and Graphic Design Australia.



Thursday, May 20, 2010

Web Development – an Overview

A web page may be created for personal or professional purposes. Technology has made web development a convenient process. In fact the benefits of technology vis-à-vis the web are meant for both developers and users. The increased usage of the web and the growing number of websites are an indication of this. And what sets the web apart from other technologies such as the television and radio is the space it gives to the user. Everyone can have a web site of their own, but not everyone can, for instance, have a show on television.





The mix of personal and professional web spaces is interesting to track. In the initial days of the web, the purpose was purely idea-sharing at an academic level. In about two years, the web was opened up as a public place and you started seeing a mix of personal and professional sites. In the next stage of its growth, the web was filled with everyone’s personal sites. Everyone had a web page up and ready with personal photographs, ‘about me’ etc. And then came the boom of companies on the web, and business on the web grew like never before. The web became an inimitable marketplace for people to buy and sell all kinds of products and services.





In the lifecycle of website creation, the development team evaluates and, if necessary, revises ideas storyboarded by the design team. Web development is a specialized area of work which involves an understanding, even if not knowledge, of all other related processes. It can be said that the development team is directly responsible for the creation of a finished website. Evaluation is not just a technical procedure, and involves some degree of subjectivity also. Developers do not just mechanically use rules to create webpage. Individual web developers would bring their own style to the work, and the final product would be influenced in that way.





Web development is carried out with the use of languages such as HTML, XML, Flash, Perl, CSS etc. Like languages we use in our day to day life, each of these languages used for web development has their own respective logics. A web developer must be well-versed in the use of one or more of these languages. The lay person has a very simplistic understanding of what web development involves. The development stage of a website is in fact a long-drawn process often requiring rework and multiple revisions. Both creation and maintenance of a web space is known as web development.





As mentioned earlier technology is now geared towards making it easier for a common person to develop a web page. There are, now, many tools available to help a person develop a website and make the web development process easier to an extent. The very fact that there are websites taking care of the complete development side of website creation for users, speaks volumes for the complexities involved in web development. A lot of the complexities of web development arise from the fact that a web developer must possess the ability to troubleshoot serious technical problems.





Asynchronous JavaScript And XML (AJAX) is a web development technique used to create interactive web applications. Even though the phenomena itself has been around on the web for about a decade, the term AJAX was recently attributed to this technique which is often misunderstood as being to be a technology. AJAX is very relevant in present day web surfing. There are times when you need your website to seem more responsive. But at the same time to continually process small amounts of data requested by the user you cannot afford for the whole web site to be reloaded. AJAX allows this activity to go on behind the scenes which accentuates the sense of interactivity on the web without affecting the speed of the web site. Filling up forms on websites, and other such activities become particularly easy because of this technique.





The technicalities can be avoided, but any company doing business online must have a good understanding of web development. These companies looking for a resounding web presence must be aware of issues like browser compatibility, accessibility, and web standards. Web standards in particular have been put in place to ensure that websites meet their fundamental purpose if communicating with a user.





In the field of web development ‘web development India’ is the new mantra of success. Global companies are recognizing the path-breaking working being carried out by web developers in India. Companies from across the world are partnering with Indian firms because of the cost-effective, superior quality services on offer. Web development professionals in India with their expertise are attractive key global players towards India. Touted as an industry that will see phenomenal growth in the next couple of years, web development India is surely going to be the way of the future.







Article Source: http://www.articlesbase.com/software-articles/web-development-an-overview-100789.html



About the Author

Munish Dev Rathee is an SEO cum Content Writer working for a web development India

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