variables – $

<?php
$hello='Hello,';

echo "<br>";
$num1=’7′;
$num2=3;
$result=$num1+$num2;
// one line comment
echo "this class is" .$result;
/* multiple
* lines comments
*/
echo "<br>";
$a=3;
$a++; //$a=$a+1
echo $a;
echo "<br>";
++$a;
echo $a;
echo "<br>";
$b=4;
$a+=$b;
echo $a;
echo "<br>";
$hello.=’world’;
echo $hello;
//@include ‘mytest.php’;
//@require ‘mytest.php’;
//echo "after error text";
//$str=`dir c: `;
//echo "<br> <pre>" .$str. "</pre>";
echo "<br>";
$age=44;
if ($age>;120)
{
echo "RIP";
}
else {
echo "long live";
}
?>;

global variables
$_GET, $_POST, $_COOKIES

For starting to learn PHP we need installed on our computer
- wamp server
- Eclipse PHP Development Tools (download from http://www.zend.com/en/community/pdt)

Settings:
click On Wamp server->php->php.ini
error_reporting = E_ALL & ~E_NOTICE & E_STRICT

eclipse
workspace C:wampwww
file -swich workspace
php – right click – reset
open perspective
window-prefernaces-general-workspace-other-encoding utf-8

window-prefernaces-web- css file – iso10646
window-prefernaces-web- html file – iso10646

php perspectie – file – new project -name
java script enable

right click on project- new- php file – hello.php

right click on the file – run as php web page

window- web browser – fire fox