PHP and MySQL
Some Basic Concepts
• Webpages and Website• Web Application: Design And Development• Design- HTML,CSS and other design concepts• Development- Scripting !• Client-Server Architecture
Static & Dynamic Pages?
Dynamic Pages
• A dynamic web page is a kind of web page that has been prepared with fresh information (content and/or layout), for each individual viewing. It is not static because it changes with the time (e.g. news content), the user (e.g. preferences in a login session), the user interaction (e.g. web page game), the context (e.g. parametric customization), or any combination thereof.
Server-side Scripting• It is a web server technology in which a user's request
is fulfilled by running a script directly on the web server to generate dynamic web pages.
• It is usually used to provide interactive web sites that interface to databases or other data stores.
• This is different from client-side scripting where scripts are run by the viewing web browser, usually in JavaScript.
• The primary advantage to server-side scripting is the ability to highly customize the response based on the user's requirements, access rights, or queries into data stores.
Some scripting languages:
• PHP (*.php)• JavaServer Pages(*.jsp)• ASP• ColdFusion Markup Language (*.cfm)• Perl (*.pl)• SMX (*.smx)• Python (*.py)• Ruby (*.rb)• Lasso (*.lasso)• WebDNA (*.dna,*.tpl)
Apache- The PHP web Server
• Apache (By ASF) is THE webserver with complete PHP support
• Notable for playing a key role in the initial growth of the World Wide Web. In 2009, it became the first web server software to surpass the 100 million website milestone
• Works with almost any OS• Apache was estimated to serve 63% of all
websites and 66% of the million busiest.
Where?
Wikipedia
PHP: Hypertext Preprocessor
• Born on June,1995. • Widely used, general-purpose scripting language• Was originally designed for web development to
produce dynamic web pages.• These scripts were written as C programming
language Common Gateway Interface(CGI) binaries, extending them to add the ability to work with web forms and to communicate with databases and called this implementation 'Personal Home Page/Forms Interpreter' or PHP/FI.
PHP supports many DBMSs…
• MySQL• Informix• Oracle• Sybase• Solid• PostgreSQL• Generic ODBC etc.
MySQL
• Initially released on May, 1995.• MySQL is a relational database management
system (RDBMS) that runs as a server providing multi-user access to a number of databases.
• Written in C,C++ !
• Wikipedia-depends upon the LAMP platform• Uses an array of 5 MySQL servers • Processes 200 million+ queries• 2 million updates daily• Illustrative of MySQL’s capabilities in a high
read and high write environment
• Yahoo! Operates on the FreeBSD platform,an open source Unix variant
• http://finance.yahoo.com/ uses FreeBSD and MySQL back end
• Billions of Monthly usage. (Yes, Billions)
Why PHP and MySQL?
• Childhood Friends • Free and powerful• Written in C,C++. This Combination makes
implementations faster
More importantly…
• because of the stability, • the lower server costs (Linux Servers - Apache
HTTP Servers) than hosting .• Net applications • and the availability of ready to use Open
Source Software Applications on the Internet.
LAMP
Are you ready to code?
If(lamp||xampp)return true;
elseIf(apache && mysql==true)
return true;else
Visit GLOSS website !!
Talk is cheap. Show me the code
-By ???
PHP Basics<?php
/*code here */echo “Hello World” ; //end with ;?>
•Weakly Typed, $var_name = value; •Arithmetic, Assignment, Comparison, Logical operators.•Conditionals and loops – Same as C. Just use echo “ print this !“; //instead of printf()•Functions:
function functionName() { code to be executed; } //Call using function name
SQL Basics
• Either use the GUI (Say phpMyAdmin, MySQL query browser), form or menu based systems or
• Use SQL scripts.
PHP-MySQL Connectivity
• Follow these steps– Connection //mysql_connect()– Creation/Selection //mysql_select_db()– Query //mysql_query()– Connection Close //mysql_close()
Want More??
Use Existing PHP frameworks to code faster and clear for Real-Time
Applications
PHP Frameworks
• CakePHP• Zend• Symfony• CodeIgnitor• Akelos• Recess• PRADO
Online Resources
• HTML – http://htmlhelp.com/reference/html40• PHP – http://www.php.net/manual/en• PHP Libraries• http://en.wikipedia.org/wiki/List_of_PHP_libraries• MySQL – http://dev.mysql.com/doc/refman/5.0/en/• BROWSER – View Page Source• http://www.w3schools.com/• OpenSource Applications – http://sourceforge.net/• And,of course,GOOGLE!!!! – whatever you want is
out there
Now, What Next??
Why PHP is preferred than ASP?Is PHP object-oriented or procedural?
Learn advanced topics on PHP and MySQL
Opportunities?
And finally…
//Build your own “Dynamic Web Application”//
Adios!
Feel free to contact me @
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Manigandan,B III CSE +91 9677216418
