How to run PHP programme ?

Run PHP Programme

• At first you install XAMPP Server(xampp-win32-5.6.3-0-VC11-installer or latest Version)
• Second you go to the c derive (C:/xampp) and open this folder and then go to the htdocs folder and Create you your own project folder name like:-Online_Exam.
• Not that you create your folder with special characters only underscore(_) not use space or any other characters like:- #,@,%,* etc.
• Third you create your PHP file and save it to .php extension in your created htdocs folder name. Example:-a.php, b.php etc.
• Last you run your php file for this you write down on your any web browser:-localhost\Online_Exam(or your htdocs folder name)

                                                                  OR

• If you are install any other database like SQL Server in your system then you should change your php port number otherwise your php file is not execute.
• For this you can change in your PHP web Config file(Apache(httpd.conf)) his port number like:-808 in three places:-1. #Listen 12.34.56.78:808 2. Listen 808 3. ServerName localhost:808
• For more visualization you can see my videos on my YouTube Channel.

Rules for PHP variables:

• A variable starts with the $ sign, followed by the name of the variable
• A variable name must start with a letter or the underscore character
• A variable name cannot start with a number
• A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
• Variable names are case-sensitive ($age and $AGE are two different variables)

eg:-1. a.php

<?php

$txt = "www.shahblogs.com";

echo "I write $txt!";

?>

2.B.php

Eg-:<?php
$txt = "Hello world!";
$x = 5;
$y = 10.5;
?>

https://www.youtube.com/channel/UCKLRUr6U5OFeu7FLOpQ-FSw/videos