PHP in one presentation

Desktop Application
Runs on a single-PC

Enterprise Application
Runs on a network

Web Application
Runs on the Internet

Request >< Response
Web Application
Client Network Server
Your app
goes here

HTML is a markup language for
describing web pages.
HTML

is created by Rasmus Lerdorf in 1994.
stands for “Personal Home Page”.
is influenced by C, C++, Java and TCL.
competes with JSP, ASP.NET, Perl and etc.
is used to create FB, Wikipedia, WP and etc.
is used in 60-70% of the world’s websites.
PHP is free software under the PHP License.
Intro

Server:
Environment
On your own PC:

Syntax
Functional and Object Oriented

Integers are platform-dependent equivalent to the C long type.
Data Types
Floating point numbers are also stored in a platform-specific range.
Boolean type is similar to the native Boolean types in Java and C++.
Resource type represent references to external sources.
Arrays can contain elements of any type that PHP can handle
Integer . Double . Booleans . NULL . String . Array . Object . Resource
Data Types:

Variable
Variables: <?php $number = 666; ?>
Constants: <?php define(“Name”, “Value”); ?>
Strings: <?php
$string = “Text”;
$string2 = $string . “Extra”;
?>
In Strings: <?php echo “Variable = $variable”; ?>
Casting: <?php $number = (int) $string; ?>

+
-
*
/
%
++
--
Operators
Arithmetic . Comparison . Logical . Assignment
==
!=
>
<
>=
<=
And
Or
&&
||
!
=
+=
-=
*=
/=
%=

$array[0], $array[1], $array[3], …
Array
Numeric:
$person[“name”], $person[“surname”], $person[“age”]
Associative:
$outside[key] = $inside;
Multidimensional:

Decision Making
If … Else if … else … Switch
x = a ? b : c;

Function
function write($message) {
echo $message;
}
function add($num1, $num2) {
return $num1 + $num2;
}
Normal functions are not first-class.
User-defined functions can be created at any time without prototype.
Functions can be defined inside code blocks, permitting a
run-time decision as to whether or not a function should be defined.
Support for true anonymous functions is not exist in PHP.

Closure
function getAdder($x)
{
return function($y) use ($x)
{
return $x + $y;
};
}
$adder = getAdder(8);
echo $adder(2); // prints "10"

OOP
class Student {
Private $name;
Private $surname;
Private $No;
public function getName() {
return $this->name;
}
}
Define Class:
$student = new Student();
echo $student->getName();
Create Object:

OOP
class Student {
Private $name;
Private $surname;
Private $No;
public function __construct() {
// codes…
}
}
Constructor:
class Student {
Private $name;
Private $surname;
Private $No;
public function __destruct() {
// codes…
}
}
Destructor:

OOP
class Child extends Parent {
<body>
}
Inheritance
Public *
Private
Protected
Encapsulation:

OOP
interface Mail {
public function sendMail();
}
class Report implements Mail {
public function sendMail() {
// implementation…
}
}
Interface:
abstract class Sample {
abstract function method1() ;
function method2() {
}
}
$sample = new Sample(); // Err
Abstract Class:

OOP
class Sample {
public static $xxx;
static function abc() {
}
}
echo Sample::xxx;
echo Sample::abc();
Statics:
class Sample {
final public function abc() {
// final implementation
}
}
Note:
Properties cannot be declared final
Final:

Exception
try {
// Codes to run
} catch(Exception $e) {
// Process exception
} finally { // PHP 5.4
// Do anyway!
}
Syntax:
throw new Exception($message);
Throw
echo $e->getMessage();
Catch

Exception
$x = $_GET[“number”];
try {
if($x>1000)
throw new Exception(“Too big!”);
echo “The number is: “ . $x;
} catch (Exception $e) {
echo “Error: “ . $e->getMessage();
}
Example:

Cookie
setcookie(name, value, expire, path, domain, security);
Create:
$_COOKIE["name"];
Access:
setcookie(“Name", “Hasan Teymuri", time()+3600, "/","", 0);
Example:

Session
session_start();
Get Started:
$_SESSION [“Name"] = “Vahid Dehghani”;
Create:
echo $_SESSION[“Name”];
Access:

Hosting
Linux (CentOS)
Platform:
VPS (VDS)
Plan:
Direct Admin
Ctrl Panel:

The End
Main Source: http://tutorialspoint.com
Special thanks to Google, Wikipedia
and who has invented copy-and-paste!
Written By
Milad Rahimi [www.MiladRahimi.com]

PHP in one presentation

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Viewers also liked

Viewers also liked (14)

Similar to PHP in one presentation

Similar to PHP in one presentation (20)

Recently uploaded

Recently uploaded (20)

PHP in one presentation