2. Overview
Web Development Trends
What is PHP ?
MVC Frameworks
Mobile Web Apps
Command Line PHP
Sites Using PHP
Pros
Cons
References
3. Web Development Trends
PHP
Ruby (on Rails)
Python (Django)
ASP.NET
JavaScript (Ajax, Node.js, AngularJS, Backbone.js,
Ember.js etc)
Java
Perl
Scala (Play Framework)
Erlang
Clojure
Groovy/Grails etc
4. What is PHP?
PHP is mainly focused on server-side scripting, so
you can do anything any other CGI program can do,
such as collect form data, generate dynamic page
content, or send and receive cookies.
The best things in using PHP are that it is extremely
simple for a newcomer, but offers many advanced
features for a professional programmer.
5. PHP: Hypertext Preprocessor
Development started in 1994, by Rasmus Lerdorf.
Server-side scripting language
Interpreted language
Multi-platform (Linux, *nix, Windows)
Syntax resembles C and Perl
Simpler and faster to develop in (than C and Perl
or Java)
Fast, flexible and pragmatic
7. Where does PHP fit ?
Web Browser
Internet or
Intranet
page
Web
HTTP
Request
Page
Web
page
Web
Server
server
Added
function
ality
Added
function
ality
Client-side
“Active pages”
JavaScript, VBScript,
Applet, ActiveX
Server-side
“Dynamic pages”
CGI, SSI, Server
API, ASP, JSP, PHP,
COM/DCOM,
CORBAActive and dynamic page technology
can be used together – server-side
program generates customized active
pages.
8. Putting it all together
Web-Client
Web-Server
DBMS
Database
Output
SQL
commands
PHP
HTML-Form
(+JavaScript)
Reply
WWW
Submit
Data
Call PHP
interpreter
Response Response
LAN
Web-Browser
Database
Server
10. PHP – Mobile Web Apps
Common to use server-side PHP to develop Mobile
Web Apps or Hybrid Apps
Reuse php web site backend components and logic
Enjoy the advantages of PHP
Eg.
PHP Yii Framework
+
jQuery Mobile
(or any mobile web app framework)
11. Command Line PHP
What is this good for:
Parsing files to put into a database
Ideal for scripts regularly executed using cron (on
*nix or Linux) or Task Scheduler (on Windows).
Anything you use a shell script or perl script to do
Variables of use:
$argc, $argv[]
$stdin, $stdout, $stderr
14. PHP - Pros
Open source, completely free
Specifically designed for Web Development /
Developers
Excellent documentation
Simplicity, Easy to learn, including frameworks
Largest community support
Multi-platforms
Easy deployment (just copy the files)
Easy to scale up and out
Readily available pool of talents/coders
15. PHP - Pros
Rapid prototyping, fast development time
Lightweight, low overheads
Fast execution time
Silo process, loosely coupled
Highly configurable
Procedural / Object Oriented programming
Extensive libraries / modules
Support wide range of interfaces (DB, Outputs,
Protocols, Caching etc)
16. PHP - Cons
Best used with caching stack
Not thread-safe
Less efficient multithreading support
No strong standards of coding style
Flexible, many ways to accomplished same task
Not strongly typed, implicit conversion
Not particularly sexy
No built-in scheduler
Not good for GUI or desktop apps