Basic PHP Tutorial by minnhein khant

Basic PHP Tutorial

www.m51a.com

What is PHP?

Rasmus Lerdorf (born November 22, 1968, in Qeqertarsuaq, Greenland

၈ ၇ ၉၉၅

။

အ

။

၉၉၈

Andi Gutmans

အ

Zeev Suraski

အ အ

။

အ

။

Hyper

အ

။

အ

Dynamic & Interactiv

PHP

အ

။ Server Sit

အ

။

အ

။

အ

။

အ

Informix, Oracle, Sybase, Solid, PostgreSQL, Generic, ODBC, etc …

အ

။

အ

။ အ

။

- MySQL,

။

အ

။ အ

အ

Wordpress,

။

Where to Start?

LAMP (Linux Apache MySQL PHP)၊ WAMP (Window

Apache MySQL PHP)၊ XAMPP (X (meaning cross-platform) Apache MySQL PHP Preal) အ

အ

။

WAMP Server Installation

။

အ

။

အ

။

PHP

Tag (၄)

။

။၄

အ

<?php

အ

။

<?php

၂။

?> အ

။

၃။

အ

။

၄။

</script>

</script>

အ

။

Output text with PHP

အ

။

semicolon (;

။

<?php

echo “Hello, Friend”;

print “Hello, World”;

echo

။

Syntax ျဖစ္သည့္အတြက္ေၾကာင့္ ျဖစ္ပါသည္။

။

<?php

echo “ Hello Friend, “ Nice To Meet U “” ;

အ

”အ

။အ

“ အ

“ ”

အ

။

“”

<?php

echo „ Hello Friend, “Nice To Meet U”‟ ;

အ

“” အ

„‟

။

အ

။

<?php

echo “Hello Friend, \“ Nice To Meet U\ “” ;

echo „ I\‟m Just ducky. ‟;

။

Comments in PHP

အ

၊

အ

။

အ

။

အ

။

အ

၊

အ

။ အ အ

အ

။

အ

၂

။

။ Single Line Comments

၂။ Multi Line Comments

။

၂

။

။ Unix/Linux shell-Style(Prel style) Comments

Unix/Linux shell-Sty

အ

။

အ

<?php

# Output “Hello Friend” (this is single line comment)

echo “Hello, Friend”;

၂။ C++ Style Comments

C++ Style Comments

အ

။

<?php

// Output “Hello Friend” (this is single line comment)

echo “Hello, Friend”;

အ

။

၂ ။ C Style Comments

အ

<?php

/* Output “Hello Friend” (this is Multi line comment) */

echo “Hello, Friend”;

အ

။

Variables in PHP

အ

။

အ

။

အ

။

အ

။

PHP Variable Types

၈

။

။ Integers: Are whole numbers, without a decimal point, like 4195

၂။ Doubles: Are floating-point numbers, like 3.14159 or.49.1

၃။ Booleans: have only two possible values either true or false

၄။ NULL: Special Data Type (An uninitialized variable)

၅။ Strings: („‟, ””, here documents (allows strings are multiple lines))

၆။ Arrays: similar to dictionaries in Python and hashes in Perl

(It provides key/value Pairs)

၇။ Objects: are instances of programmer-defined classes, which can package up both other kinds of values

and functions that are specific to the class.

၈။ Resources: Special Data Type (Reference to a third party resource)

အ

<?php

$txt=”Welcome to M51A”;

echo $txt;

အ

။

အ

။အ

။

( . ) Operator

။

<?php

$a="I Love Mistake";

$b="U are Welcome";

echo $a.$b;

။

<?php

$first_name= „Mistake‟;

$second_name= 51;

$last_name= „Area‟;

echo $first_name, “\t”, $second_name, “\t”, $last_name;

။

အ

vari

။

<?php

$first_name= „Mistake‟;

$second_name= 51;

$last_name= „Area‟;

echo $first_name, „\t‟, $second_name, „\t‟, $last_name;

။

PHP Script

။

Answer: 5 + 4 = 9

။

<?php

။

အ

၅

၄

၉

$a = 5;

$b = 4;

$c = 9;

echo 'Answer:',"\t", $a,'+', $b,' =',"\t",$c;

။

<?php

$a = 10000;

$b = 99999.99;

echo ($a+$b);

အ

။

၂

အ

()

။

Arithmatic Operators

အ

။

အ

။--

။

အ

။

Comparison Operators

အ

(

၂

အ

။

၂

Programming Looping in PHP

အ

။အ

။

repeat

။

၄

။

။ While Loops

၂။ Do While Loops

၃။ For Loops

၄။ Foreach Loops

။

အ

။

။ While Loops

အ

။

while ( expression )

{

// Code to execute

}

<?php

$online = 1;

while ( $online <= 12 )

{

echo "$online x 2 = ".($online*2)."<br />";

။

$online++;

}?>

အ

။

အ

။

။အ

၂

။

၂

အ

$counter = 1;

while ($counter < 11)

{

echo ("counter =".$counter."<br>");

၂

။

<?php

အ

$counter++;

}

အ

။

အ

<br>

။

၂။ Do While Loop

။

အ

။

{

// code to be executed

}

while (condition);

<?php

$upperlimit = 10;

$lowerlimit = 1;

{

echo ($upperlimit * $lowerlimit) . '&nbsp;';

$lowerlimit++;

}

while ($lowerlimit <= $upperlimit);

အ

Space

အ

။

<?php

$counter = 1;

{

echo "The number is: $counter <br />\n";

$counter ++;

upperli

အ

။

}

while ( $counter > 500 && $counter < 1000 );

အ

၅

cond

။

၅

အ

၉၉၉

အ

၅

။

အ

။

အ

၅

၅ ၂

။ ၅ ၂

၅ ၃

။အ

အ

။

အ

၅

အ

၅

၉၉၉

။

၃။

For Lo

။

အ

။

for ( initialization ; condition; increment)

{

// code to be executed

}

<?php

for ($number = 1; $number <= 12; $number++)

{

echo "Welcome to M51A!<br />";

}

၄။

အ

။

foreach (array _variable as value)

{

//code to be executed

}

foreach (array _variable as $key => $value)

{

အ

။

အ

။

//code to be executed

}

၂

။

<?php

$test=array(1,2,3,4,5,6,7,8,9,10);

foreach ($test as $value)

{

echo "$value - ";

}

။

1-2-3-4-5-6-7-8-9-10

<?php

“one”, “two”, “three”);

foreach ($test as $key => $value)

{

echo "$key - $value <br> ";

}

။

0-1

0-2

0-3

Arrays

၈

။

အ

။

အ

Special Conta

။

။အ

။

၂။

၃

။

အ

။

၃။

။

အ

။

$friends = array(“Ye Gyi”,”ShweMoe”,”Moelone”);

အ

။

$name [0] = “Ye Gyi”

$name [1] = “ShweMoe”

$name [2] = “Moelone”

။

၂။

အ

။

အ

။

$student_score = array (“Tarnge” =>80, “ShweMoe”=>90, “Moelone”=>85);

အ

။

$student_score [“Tarnge”] = 80;

$student_score [“ShweMoe”] = 90;

$student_score [“Moelone”] = 85;

။

အ

။

၃။

။

အ

။

<?php

$array1 = array (10,15,20);

$array2 = array (110,115,120);

$array3 = array (210,215,320);

$big_array = array ($array1, $array2, $array3);

echo $big_array [1] [2];

။

Arr

။

အ

။

အ

။အ

။

၃

။

။ အ

။

။အ

။

။အ

။

အ

။

Switching Flow

PHP Conditional Statements

အ

။

If Statement

အ

sta

။

။ အ

။

အ

။

အ

။

if (expression)

{

/*code to execute if the statement is true*/

}

<?php

$user = "Tin HTun Lwin";

အ

။

State

if ($user == " Tin Htun Lwin ")

{

echo "M51A creator is Tin Htun Lwin ";

}

အ

။အ

Lwin ("Tin Ht

($user == " Tin Ht

။

Tin Htu

၊

echo (echo "M51A

creator is Tin Ht

။ အ

M51A Creato

။

If...Else Statement

အ

If …

Tin Htun

အ

if …

။

အ

။

if (expression)

{

/*code to execute if the statement is true*/

}

else

{

/*code to execute if the statement is false*/

}

<?php

$user = "Tarnge";

if ($user == " Tin HTun Lwin ")

{

echo "M51A creator is Tin HTun Lwin ";

}

else

{

echo “M51A Admin is Tarnge”

}?>

အ

။အ

" Tin Ht

။

၊

($user ==

echo (echo "M51A creator is Tin

echo (echo “M51A Admin is Tarnge”

။အ

။

If…Else If Statement

အ

။

If …

။

if(expression1)

{

/*code to execute if the statement is true*/

}

else if(expression2)

{

/*code to execute if the previous statement is false and this statement is true*/

}

else

{

/*code to execute none of the above statements are false*/

}

<?php

$user = "Moe Lone";

($user == "Tin Htun Lwin")

{

echo "M51A creator is Tin Htun Lwin";

}

else if

($user == " Tarnge ")

{

echo "M51A Admin is Tarnge";

}

else if

($user == "Moe Lone")

{

echo " M51A Admin is Moe Lone ";

}

else

{

echo "You Are M51A Member";

}?>

Switch Statement

။ အ

အ

။

switch (expression )

{

case label1:

// code to be executed if expression = label1;

break;

case label2:

// code to be executed if expression = label2;

default:

။

break;

အ

// code to be executed

// if expression is different

// from both label1 and label2;

}

<?php

$m51a = "Tin Htun Lwin";

switch ($m51a)

{

case "Creator":

case "Administrator":

echo " You Are M51A Website Administrator ";

break;

case "Moderator":

case "Supervisor":

echo " You Are M51A Administrator Group Member";

break;

case "Special Member ":

case " Member ":

echo "Hello Friend, You Are Welcome To M51A ";

break;

default:

echo "Thanks for visiting! Please either login below, or click here to register";

}?>

။အ

("Tin Ht

။ အ

Tin Htun Lwin

။

You

အ

Are M51A

Administrator

Gro

အ

။

အ

။

Function In PHP

အ

။

အ

။

အ

။

အ

။

အ

။ အ

အ

။

Function MyTest()

အ

{ အ

အ

}အ

။

အ

} အ

။

<?php

function Greeting()

{

echo "Hello Friend, You Are Welcome To M51A<br/>";

}

အ

{}

။

()

။

အ

။

<?php

function Greeting()

{

echo "Hello Friend, You Are Welcome To M51A<br/>";

}

Greeting();

။

<?php

။

functionGreeting()

{

echo "Welcome To Mistake 51 Area!<br/>";

}

echo "Hello Friend <br/>";

Greeting();

echo "Hello New Member <br/>";

Greeting();

Parameters

အ

။

<?php

function Greeting($Name)

{

echo "Hello! " . $Name . "<br/>";

}

Greeting("Tarnge");

Greeting("Ye` Paing Phyo");

Greeting("Moe Lone");

Greeting("Shwe Moe Hlaing");

အ

။

Hello!

အ

$Name

။

အ

“”

။

အ

။

Hello! Tarnge

Hello! Ye` Paing Phyo

Hello! Moe Lone

Hello! Shwe Moe Hlaing

<?php

function Greeting($Name, $Posting)

{

။ အ

။

echo "Hello! " . $Name . " " . $Posting . "<br/>";

}

Greeting("Tarnge,", "You Are M51A Administrator");

Greeting("Ye` Paing Phyo,", "You Are M51A Administrator");

Greeting("Moe Lone,", "You Are M51A Moderator");

Greeting("Shwe Moe Hlaing,", "You Are M51A Supervisor");

အ

။

Hello! Tarnge, You Are M51A Administrator

Hello! Ye` Paing Phyo, You Are M51A Administrator

Hello! Moe Lone, You Are M51A Moderator

Hello! Shwe Moe Hlaing, You Are M51A Supervisor

။

PHP Functions - Returning Values

အ

<?php

function plus($x, $y)

{

$total = $x * $y;

return $total;

}

plus(3, 17);

echo "M51A =" . plus(3, 17);

(Return Valu

အ

။

အ

၂

အ

။

၂

။

အ

။

M51A =51

PHP Forms and User Input (Post Method& Get Method)

အ

။ အ

အ

။

POST Method

အ

။

<html>

အ

။

အ

<body>

Name: <input type="text" name="name" />

Age: <input type="text" name="age" />

</form>

</body>

</html>

အ

။

။ အ

အ

။

The $_Request Variable

အ

<html>

<body>

Welcome

<?php

echo $_POST["name"];

?><br />

You are

<?php

echo $_POST["age"];

။

အ

years old.

</body>

</html>

။

အ

welcome.p

။

အ

။

Get Method

အ

၇

။

Get

အ

။

အ

။

<html>

<body>

Name: <input type="text" name="name" />

Age: <input type="text" name="age" />

</form>

</body>

</html>

။

Date …. Time Function

အ

။

<?php

echo date("d/m/y");

။

m-d-y အ

Supplying a Timestamp

။

mktime(hour, minute, second, month, day, year, daylight savings time)

<?php

- 16/11/10

။

$tomorrow = mktime(0, 0, 0, date("m"), date("d")+1, date("y"));

echo "Tomorrow is ".date("m/d/y", $tomorrow);

အ

။

အ

။

Include & Require

Include () Function

အ

။

အ

။

အ

။

အ

။

<a href="http://www.m51a.com/ tutorials.php?">Tutorials</a>

<a href="http://www.m51a.com/ knowledge.php">Knowledge</a>

အ

။

။ အ

အ

။

<html>

<body>

<?php include("menu.php"); ?>

<h1>Welcome to Mistake 51 Area!</h1>

</body>

</html>

။

Require () Function

Include

အ

။

အ

၂

။

Bro

အ

။

Welcome to

အ

။

Warning: include(menu.php) [function.include]: failed to open stream: No such file or directory in

C:\wamp\www\Testttttttttttttt\index.php on line 3

Warning: include() [function.include]: Failed opening 'menu.php' for inclusion (include_path='.;C:\php5\pear') in

C:\wamp\www\Testttttttttttttt\index.php on line 3

Welcome to Mistake 51 Area!

Some text.

အ

include("menu.php")

အ

<?php

။

အ

Warning: require(menu.php) [function.require]: failed to open stream: No such file or directory in

C:\wamp\www\Testttttttttttttt\index.php on line 3

Fatal error: require() [function.require]: Failed opening required 'menu.php' (include_path='.;C:\php5\pear') in

C:\wamp\www\Testttttttttttttt\index.php on line 3

အ

။

PHP File Handling

၊

။

File Create / File Open

၊

။

အ

။

<?php

$file=fopen("welcome.txt","w");

</body></html>

အ

။

အ

“r”

အ

("w"

။ “r”

။

။ အ

အ

err

။ အ

အ

။အ

အ

။

Read: 'r'

အ

။

Read/Write: 'r+'

၊

၂

။

Write: 'w'

အ

။

အ

။

အ

Write/Read: 'w+'

၊

၂

အ

။

အ

။

Append: 'a'

အ

။

Append: 'a+'

၊

၂

။

အ

။

Append: 'x'

အ

။

Append: 'x+'

အ

။

အ

။

File Close

။

အ

။

<?php

$file = fopen("test.txt","r");

fclose($file);

PHP Cookies

အ

။

အ

၊

အ

။ အ

အ

။

အ

။

အ

။

How to create a cookie?

။

Setcookie (name, value, expire, path, domain);

အ

<?php

setcookie("user", "m51a");

။

<html>

အ

။

အ

။

အ

<?php

setcookie("user", "m51a", time()+3600);

<html>

<?php

$expire=to,e()+60*60*24*30;

setcookie("user", "m51a", $expire);

။

<html>

အ

။

အ

။

How to Retrieve a Cookie Value?

။

cook

<?php

// Print a cookie

echo $_COOKIE["user"];

// A way to view all cookies

print_r($_COOKIE);

။

အ

။

<html>

<body>

<?php if (isset($_COOKIE["user"]))

echo "Welcome " . $_COOKIE["user"] . "!<br />";

else

echo "Welcome guest!<br />";

</body>

</html>

How to Delete a Cookie?

။

၊

အ

။

<?php

// set the expiration date to one hour ago

setcookie("user", "", time()-3600);

။

PHP Sessions

။

အ

၊

အ

။

အ

။

အ

။

အ အ

။

Starting PHP Session

။

<?php session_start(); ?>

<html>

Storing a Session variable

။

<?php

session_start();

// store session data

$_SESSION['views']=1;

<html>

<body>

<?php

//retrieve session data

echo "Pageviews=". $_SESSION['views'];

</body>

</html>

Pageviews=

။

။အ

။

၊

။

<?php

session_start();

if(isset($_SESSION['views']))

$_SESSION['views']=$_SESSION['views']+1;

else

$_SESSION['views']=1;

echo "Views=". $_SESSION['views'];

Destroing a Session

။

အ

<?php

unset($_SESSION['views']);

အ

။

session_destroy()

။

<?php session_destroy(); ?>

www.m51a.com

PHP:Basic

PHP

Tutorial

။

Tin Htun Lwin (mistake51area@gmail.com)

E-B

အ