Loops are features used by webmasters to display different posts and features to the clients. Loops provide flexibility that cannot be experienced without its use. For example, if you have different posts and you are not using the loop, then you will not be able to display all the posts and contents to your clients. Instead, users and clients on the other side will only be able to view either one post or page. Loop play an important role in retrieving data from the database using the parameters provided. When certain information is searched by the client, the loop acts as the mediator. It receives the parameters requested by the client and retrieves the information matching those parameters.
Loops can be used for other functions within your site for example displaying various versions of your wordpress site. By default, the wordpress site can be displayed as either category view, archive view or index view. These different views use loops which are formatted differently to suit the preferences of each of the views. This utilizes various templates to achieve this function. When a client requests information or data from the wordpress site using parameters like specific date, month or year, the results displayed have to meet that parameter. For example, if a client requests information from October 2005, only the information from that month will be retrieved from the archive and availed to the client.
In this case, the view of the request as well as the response is changed to archive view. This is because the data on the database has to be retrieved basing on the date provided by the client. It is the responsibility of the loop to ensure that the request and the response are as per the instructions provided by the client.
You site may have several categories which can be clicked on by the clients. Clients and users have different tastes and preferences and will always click on the information they are looking for in your site especially if you have a lot of content on your site. Whenever a client requests information from a certain category on your site, the loops change the view to category view. Only the information from that particular category is displayed while information from other categories is restricted. This is facilitated by the fact that templates can be assigned different categories according to your preference. This is done by naming the file in the format category-X-php where X is the numerical ID of the category.
Most webmasters like putting their sites such a way that they can be accessed by the clients with ease. Some may consider using the Cascading Style Sheets to make the site accessibility better. CSS consumes much less bandwidth compared to other equivalent applications making accessibility to the site much easier and faster. If you are considering such actions; always remember the guidelines of the CSS. For example, you have to remember that CSS is only put in the head of the HTML document and the default code is header.php.
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