![PHP – Coding in PHP Harit Kothari [email_address]](https://image.slidesharecdn.com/coding-in-php-120530085092412-4/75/Coding-In-Php-1-2048.jpg)
![PHP – Coding in PHP Harit Kothari [email_address]](https://crownmelresort.com/image.slidesharecdn.com/coding-in-php-120530085092412-4/75/Coding-In-Php-1-2048.jpg)
Uploaded byHarit Kothari
Coding In Php
This document provides an overview of PHP coding and introduces some key PHP concepts. It discusses different ways to embed PHP code in HTML documents. It also presents a simple PHP script example and describes several important PHP environment variables, including $_GET, $_POST, and $_SERVER, which provide access to data sent in requests, stored cookies, and server information. The document aims to give the reader a basic understanding of PHP syntax and how it interacts with the HTTP environment.
More Related Content
Coding In Php
- 1. PHP – Codingin PHP Harit Kothari [email_address]
- 2. Agenda PHP HTMLEmbedding Tags and Syntax Simple PHP Script Example PHP and HTTP Environment Variables
- 3. PHP HTML EmbeddingTags and Syntax HTML is written as <tag>content<tag> Similarly, PHP Tags can be written as: <?php method; ? > e.g. <?php echo ”Hello World!”; ?> So how does it makes sense? - Use different methods to generate contents dynamically - Call PHP functions and get results at runtime
- 4. Some other waysto achieve the same SGML Style (we have already seen!) <?php echo ”Hello World!”; ?> ASP / JSP Style <% echo “Hello World!”; %> OR (Shortcut) <p><?=”Hello World!”; ?> (Java)Script Style <script language = “php”> echo “Hello World!”; </script>
- 5. Simple PHP ScriptExample A sample program that illustrates different ways to code PHP! <html> <head><title><? Echo “This is a sample PHP page!”; ?></title></head> <body> <h2>A math example</h2> <p>10 + 11 = <%= 10+11 %> <br/>and 8 + 9 = <% echo(8+9); %> </body> </html>
- 6. PHP and HTTPEnvironment Variables HTTP as a protocol is different, in PHP it has rich set of Global / environment variables. They are accessible globally! $HTTP_GET_VARS or $_GET $HTTP_POST_VARS or $_POST $HTTP_COOKIE_VARS or $_COOKIE $HTTP_SERVER_VARS or $_SERVER $HTTP_ENV_VARS or $_ENV $HTTP_POST_FILES
- 7. PHP and HTTPEnvironment Variables - 1 $HTTP_GET_VARS & $HTTP_POST_VARS Mostly used in GET and POST requests respectively. Contains request information / data. Useful in form processing.
- 8. PHP and HTTPEnvironment Variables - 2 $HTTP_COOKIE_VARS Cookie is a very small, temporary text file A way of session management Stored and retrieved user specific information on client
- 9. PHP and HTTPEnvironment Variables - 3 $HTTP_SERVER_VARS Various information about server Examples: SERVER_SOFTWARE “wamp” SERVER_NAME “www.sachinism.com” SERVER_PROTOCOL “HTTP/1.1” SERVER_PORT “80” REQUEST_METHOD “POST” QUERY_STRING “nm=hussu+age=32” REMOTE_HOST “hostname_machine” REMOTE_ADDR “192.168.10.1” AUTH_TYPE “basic” CONTENT_TYPE “x-url-encoded”
- 10. PHP and HTTPEnvironment Variables - 4 $HTTP_ENV_VARS Related to accessing machine and OS specific environment variables $HTTP_POST_FILES Related to file upload
- 11. Summary PHP canbe written in either of 3 ways, SGML, Script or ASP / JSP styles. PHP environment variables like $_GET, $_POST, $_COOKIE, $_SERVER provides access to data stored in different ways like sent as request, stored as cookies, or some data about server.
- 12. Whats next? Learninglanguage in dept... Variables, Constants and Data Types, and Operators Decision Making, Flow Control and Loops