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Ruby by Example by Kevin C. Baird

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PHP

PHP is another interpreted language using weak dynamic typing that is very popular for web applications. In fact, some people erroneously believe that PHP is only usable for web applications. It is technically a complete, general-purpose programming language, although it has several features that make it more popular for web work. Many of the languages discussed here can be used in embedded code within web pages, provided that the code is marked off from the rest of the page with the appropriate tags. PHP is unusual in that it must always be demarcated with such tags, even when it is used for command-line tasks that will never come near a webserver. It has weak, dynamic typing and is interpreted.

PHP and Ruby share the characteristic of having ...

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