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PHP .ppt
PHP is a widely used scripting language for building dynamic web pages. It allows non-technical users to easily create interactive web content. PHP code is processed on the server-side and returns fully rendered HTML to browsers. The document discusses how PHP works, its history and uses, compilers that optimize PHP code, and concludes that PHP is a powerful tool for creating dynamic websites.
PHP .ppt
- 1. WEL COME THE TURNINGPOINT
- 3. CONTENTS 1. INTRODUTION 3. USES 2.HISTORY OF PHP 6. CONCLUSION 4. PHP WORKS 5. COMPILER
- 4. INTRODUCTION PHP is apowerful tool for making dynamic and interactive Web pages. PHP is the widely-used, free, and efficient alternative to competitors such as Microsoft's ASP and non-technical users can easily learn a few handy tricks to make their web pages easier to manage, and more useful. When creating a PHP enhanced pages, there are a few things we must remember. PHP can contain a mixture of HTML and PHP code. PHP is a server-side technology, and does not work in a browser. The filename must have .php extension.
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- 7. When a usernavigates in her browser to a page that ends with .php extension, the request is sent to a web server, which directs the request to the PHP interpreter. As shown in the diagram below, the PHP interpreter processes the page, communicating with file systems, databases, and email servers as necessary, and then delivers a web pages, to the web server, to return and to the browser.
- 8. COMPILERS The PHP languagewas originally implemented as an interpreter. Several compilers have been developed which decouple the PHP language from the interpreter. Advantages of include better execution speed, static analysis, and improved interoperability with code written in other languages. PHP compilers of note include Phalanger, which compiles PHP into CIL byte-code, and Hip Hop, developed at Facebook and now available as open source, which transforms the PHP Script into C++, then compiles it, reducing server load up to 50%.
- 9. CONCLUSION PHP is agreat tool for writing dynamic web pages. Non- technical users can easily learn a few handy tricks to make their web pages easier to manage, and more useful. Because its syntax resembles most C-like languages, any Computer Science student is able to learn it very quickly. When creating a PHP enhanced pages, there are a few things we must remember. PHP is a server-side technology, and does not work in a browser. The filename must have .php extension. PHP enhanced pages can contain a mixture of HTML and PHP code.