PHP is HyperText Preprocessor language.It is a scripting language basically used for web development.With the help of php language we can make websites .
Php is basically server side scripting language which runs on a web server we can write a code in this language and than that code will be executed on web server.
php language is embedded into html .
In simple language we can say that php is used for web development or for making websites.
How to write a simple program in php language❓❔❓
Before writing the example of php i want to tell you that first we have to know about html language before writing the code in php .but if you dont know about html dont worry see my blogs and you will learn .i will also put my blogs on html language in which you will learn html language.
To RUN a php PROGRAM we also need web server beacuse as i explain above we need a web server to execute php code so you will have to download wampserver (which is web server)and install it.there are also other web servers like apache and many more but i use wampserver.
we can write the code of php in notepad and save it with extension .php for example 1.php
SO HERE THE SIMPLE AND BASIC EXAMPLE OF PHP PROGRAM
<html>
<head>
</head>
<body>
<?php
echo "THIS IS RAJAT";
?>
</body>
</html>
<?php is starting method of php code.
Suppose we are going to wite a program in php code than we have to write <?php tag which shows that code should be written in php language and after writing the code we have to close this tag like
?>
In php we use echo .basically what is echo and why it is used ?
echo is predefine function used to display the content the content of program which we want to display when the code is get executed
we can write as echo "rajat";
the text we want to display can be written in "" and ends with ;
for example in c++ language we use cout to display.
All the tags should be closed in proper order if we cant close all the tag than our program will not get executed it will show error .
NOW THE THING IS HOW TO EXECUTE THIS PROGRAM
IT is very simple to execute it first we have to download wampserver and after that we have to install it in c drive and also create a shortcut on desktop.
now we have to double click on wampserver shortcut that created on desktop than a dialog box will appear on screen which will ask you for permission that do you want this app to run you will have to excute or click on yes.
now you will see w sign near the battery icon which is of red color it will changes to green .
after that you will have to left click on that w and differnt options will display you will have to select local host from these option.
we have to go in c drive we will see a folder name wamp we have to open it
now we see many folders we have to open bin folder and copy the address of that
now go in advance and click on environment variable
now click on new button given ablove and a dialog box will appear like this
now write variable name as path and copy the link of bin from c going in wamp folder and open bin
copy that in variable value and apply it or save it.
now we have to again open c drive go in wamp folder and after that you will see many folders
open the folder www and create a new folder with any name which you want to give to save our program code which we write in notepad
you have to save all the programs in that folder which you created in www
now you have to left click on the green wampserver sign which is near battery sign and open local host
you will see your folder in your projects as i see my folder rajat in your projects
now open that folder and click on the program that you will save in this and it will get executed and dispaly the output
IF you have any query regarding this than please post a comment .
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