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Captcha is a system, which is integrated in many websites for abstaining automatic servers from spamming or from signing up to an account. As a matter of fact, a Captcha is incorporated in a website for differentiating user from automated server. To a viewer a Captcha is an image, which displays a blurred text or a shaded text that he must type in a given box for singing up to an account or for submitting a form. This program or device is widely used by large number of website owners to fight against the mass attack of spamming. Captcha can be created by using sophisticated programming language but it is the PHP programming language, which is used extensively by web programmers, as it is less complicated. (more…)

PHP is the Hypertext Preprocessor extensively used Open Source general-purpose scripting language which is particularly appropriate for Web development and can be used in HTML. The PHP syntax is based on C, Java, and Perl and is easily learnable. With the help of PHP, web developers can swiftly write webpages that are generated dynamically and so much more.

As PHP runs on major operating systems as like Unix and Windows servers, it is easily available. PHP also supports most of the web servers. In case of most of the servers, the PHP contains a module while for others supporting CGI standard, it works as a CGI processor. (more…)