5. php bangla tutorial php basic

eieieiei
AAAA.... eieieiei
1. i s
2.
3. Syntax
4. (Variables)
5. s (String)
6. a (Operators)
7. n s n
8. (Loop)
9. While
10. For
11. a (Array)
12. (Function)
13. PHP
14. $_GET
15. $_POST
BBBB....a n eia n eia n eia n ei
• 1111....a n ei ua n ei ua n ei ua n ei u |||| ( Advanced PHP Tut or i al i n Bangl a)( Advanced PHP Tut or i al i n Bangl a)( Advanced PHP Tut or i al i n Bangl a)( Advanced PHP Tut or i al i n Bangl a)
• 2222.... ei uei uei uei u ( PHP Dat e Funct i on Tut or i al i n Bangl a)( PHP Dat e Funct i on Tut or i al i n Bangl a)( PHP Dat e Funct i on Tut or i al i n Bangl a)( PHP Dat e Funct i on Tut or i al i n Bangl a)
• 3333.... ei i k uei i k uei i k uei i k u ( PHP I ncl ude Funct i on Tut or i al i n Bangl a)( PHP I ncl ude Funct i on Tut or i al i n Bangl a)( PHP I ncl ude Funct i on Tut or i al i n Bangl a)( PHP I ncl ude Funct i on Tut or i al i n Bangl a)
• 4444.... eieieiei ( PHP r eq( PHP r eq( PHP r eq( PHP r equi r e Funct i on Tut or i al i n Bangl a)ui r e Funct i on Tut or i al i n Bangl a)ui r e Funct i on Tut or i al i n Bangl a)ui r e Funct i on Tut or i al i n Bangl a)
• 5555.... ei i uei i uei i uei i u ( PHP Fi l e Funct i on Tut or i al i n Bangl a)( PHP Fi l e Funct i on Tut or i al i n Bangl a)( PHP Fi l e Funct i on Tut or i al i n Bangl a)( PHP Fi l e Funct i on Tut or i al i n Bangl a)
• 6666.... ei i uei i uei i uei i u ( PHP Fi l e Upl oad Tut or i al i n Bangl a)( PHP Fi l e Upl oad Tut or i al i n Bangl a)( PHP Fi l e Upl oad Tut or i al i n Bangl a)( PHP Fi l e Upl oad Tut or i al i n Bangl a) 7777.... ei kei kei kei k
uuuu ( PHP Cooki e Tut or i al i n Bangl a)( PHP Cooki e Tut or i al i n Bangl a)( PHP Cooki e Tut or i al i n Bangl a)( PHP Cooki e Tut or i al i n Bangl a)
• 8888.... ei uei uei uei u ( PHP Sessi on Tut or i al i n Bangl a)( PHP Sessi on Tut or i al i n Bangl a)( PHP Sessi on Tut or i al i n Bangl a)( PHP Sessi on Tut or i al i n Bangl a)
• 9999.... ei e h uei e h uei e h uei e h u ( PHP Er r or Handl er Tut or i al i n Bangl a)( PHP Er r or Handl er Tut or i al i n Bangl a)( PHP Er r or Handl er Tut or i al i n Bangl a)( PHP Er r or Handl er Tut or i al i n Bangl a)
• 10.10.10.10. eieieiei iiii ( PHP Mai l Funct i on Tut or i al i n Bangl a)( PHP Mai l Funct i on Tut or i al i n Bangl a)( PHP Mai l Funct i on Tut or i al i n Bangl a)( PHP Mai l Funct i on Tut or i al i n Bangl a)
• 11111111.... ei l uei l uei l uei l u ( PHP Fi l t er Tut or i al i n Bangl a)( PHP Fi l t er Tut or i al i n Bangl a)( PHP Fi l t er Tut or i al i n Bangl a)( PHP Fi l t er Tut or i al i n Bangl a)
CCCC.... ei oei oei oei o
• 1111.... ei o uei o uei o uei o u |||| ( PHP Fr amewor k Tut or i al i n Bangl a)( PHP Fr amewor k Tut or i al i n Bangl a)( PHP Fr amewor k Tut or i al i n Bangl a)( PHP Fr amewor k Tut or i al i n Bangl a)
• 2222....a яk a p g e eia яk a p g e eia яk a p g e eia яk a p g e ei ( OOP & PHP Tut or i al i n Bangl a)( OOP & PHP Tut or i al i n Bangl a)( OOP & PHP Tut or i al i n Bangl a)( OOP & PHP Tut or i al i n Bangl a)
• a яka яka яka яk aaaa eieieiei ( OOPHP Tut or i al i n Bangl a)( OOPHP Tut or i al i n Bangl a)( OOPHP Tut or i al i n Bangl a)( OOPHP Tut or i al i n Bangl a)
• :::: ---- |||||||| ::::6666---- 10101010 |||||||| : 11: 11: 11: 11---- 15 | |15 | |15 | |15 | | : 16: 16: 16: 16---- 23232323

• 4444.... i i u e i si i u e i si i u e i si i u e i s ( CodeI gni t er Downl oad & I nst al l Tut or i al i n( CodeI gni t er Downl oad & I nst al l Tut or i al i n( CodeI gni t er Downl oad & I nst al l Tut or i al i n( CodeI gni t er Downl oad & I nst al l Tut or i al i n
Bangl a)Bangl a)Bangl a)Bangl a)
• 5. u T sT uu T sT uu T sT uu T sT u ( MVC St r uct ur e Tut or i al i n Bangl a)( MVC St r uct ur e Tut or i al i n Bangl a)( MVC St r uct ur e Tut or i al i n Bangl a)( MVC St r uct ur e Tut or i al i n Bangl a)
• 6666.... i ii ii ii i ( CodeI gni t er Conf i gur e Tut or i al i n Bangl a)( CodeI gni t er Conf i gur e Tut or i al i n Bangl a)( CodeI gni t er Conf i gur e Tut or i al i n Bangl a)( CodeI gni t er Conf i gur e Tut or i al i n Bangl a)
• 7777.... i ii ii ii i e p e pe p e pe p e pe p e p ( Cr eat i ng Fi r st Appl i cat i on wi t h CodeI gni t er )( Cr eat i ng Fi r st Appl i cat i on wi t h CodeI gni t er )( Cr eat i ng Fi r st Appl i cat i on wi t h CodeI gni t er )( Cr eat i ng Fi r st Appl i cat i on wi t h CodeI gni t er )
AAAA.... eieieiei
1.1.1.1.
ei uei uei uei u |||| ( PHP Basi c)( PHP Basi c)( PHP Basi c)( PHP Basi c)
: яoяoяoяo
ei e i sk p m e я :
sk p c p g b e c instruction e run s k я
।“ iiii ” c ei skp iuя mu nt handle
u ei o я я o ei Process :
(Picture,Content etc) (math calculation,file operation etc) e
HTML e n iuя o b uя ।
eieieiei (PHP) ?:
PHP Hypertext Preprocessor e i ,k p ,HTML-embedded sk p я ei e
syntax C,Perl,Java ei я u d o я d i ।
eieieiei (PHP) яяяя :
1.HTML . HTML Form.
2. C я ।
3.я skp
o p яo p яo p яo p я ?:?:?:?:
o ei hosting(я ) e я e s

।
я я mu i o i s e я m k o i s
mu -
* oooo
1.e PHP -compitable o : apache
2.PHP
*k ink ink ink in oooo
1.o b uя я k(e i s i )
2.e k e : ei e я Specialized e o s ।
webcoachbd.com eeee uuuu eieieiei ।।।।
2.
ei i sei i sei i sei i s ( PHP I nst al l at i on Tut or i al i n Bangl a)( PHP I nst al l at i on Tut or i al i n Bangl a)( PHP I nst al l at i on Tut or i al i n Bangl a)( PHP I nst al l at i on Tut or i al i n Bangl a)
: яoяoяoяo
p u e k in o i e i s
o apache e a i ei e o o i s :MySQL, я
e o o e k o я e я
c e e e o i s e i i s i s
o c XAMPP.XAMPP e u i s
http://www.apachefriends.org/download.php?xampp-win32-1.7.3.exe a o e i s
।
in s XAMPP e e i k o a a - i
i s i e XAMPP Control Panel i a C i i s
C:Program Filesxampp C:xampp ei e start click (Apache
e MySql)।

Apache o MySql b uя e http://localhost e я
English k ।
ei я i s mn a mu e я
( )
3.

eieieiei ( PHP Code Wr i t t i ng)( PHP Code Wr i t t i ng)( PHP Code Wr i t t i ng)( PHP Code Wr i t t i ng)
: яoяoяoяo
C driveC driveC driveC drive eeee XAMPPXAMPPXAMPPXAMPP i s ei li s ei li s ei li s ei l htdocshtdocshtdocshtdocs llll
web contentweb contentweb contentweb content g ।g ।g ।g ।
www k n i k c “C:xampphtdocs”( a i i s :D drive
e “D:xampphtdocs”). e ei i k “mytest.php” i e
a e -b uя e http://localhost/mytest.php
c e , e ? ? ei я
s iя o : Net Beans, Dreamweaver i e a e
i , e IDE (Integrated Development
Environment). c n ।
4.
eieieiei uuuu ( PHP Synt ax Tut or i al i n Bangl a)( PHP Synt ax Tut or i al i n Bangl a)( PHP Synt ax Tut or i al i n Bangl a)( PHP Synt ax Tut or i al i n Bangl a)
: яoяoяoяo
ei я a i i extension .php .html ei execute
।
* ei e p a <?php h e ?> h ।
* e ei Scripting Block(<?php e ?> e e b ) k n
।
*p instruction(code line) k d ।
o e e ( / ) e
<?php
echo"This is my first php page";
?>
e я mypage.php , htdocs browse save in e я e
b uя e http://localhost/mypage.php e en u ।

ei e u я s n echo o print.
ei nnnn: h ei e e execute
e , a m e n e
i n i // # i n i /* e */ h
।
: a p , k ki <?php e ?>
echo "Hello World! ";
e k ।
<?php
echo "Hello World!";
echo "Hello World!";
?>
ei s я ,e p я ।
5.
ei uei uei uei u ( PHP Var i abl es Tut or i al i n Bangl a)( PHP Var i abl es Tut or i al i n Bangl a)( PHP Var i abl es Tut or i al i n Bangl a)( PHP Var i abl es Tut or i al i n Bangl a)
: яoяoяoяo
c e t (Container) a e kk String “Hello
Bangladesh” a e integer value 100. e e e ( e e
declare ) я , (value)

ei “$” ei h a i я ।
* case sensitive. $a_number and $A_number , ei e ।
* m k ei
$variable_name = Value;
u i -
1.<?php
2.$hello = "Hello World!";
3.$a_number = 4;
4.$anotherNumber = 8;
5.?>
* ei e “Loosely Typed” я i declare e i ( ) u l o
ei я i n ।
d :
1.a i letter or “_”(under score) ।
2. alpha-numeric characters o underscores. a-z, A-Z, 0-9, or _ . ।
3. s e a “___”underscore ($my_string) a
ak ($myString) ।
6.
ei sT uei sT uei sT uei sT u ( PHP St r i ng Tut or i al i n Bangl a)( PHP St r i ng Tut or i al i n Bangl a)( PHP St r i ng Tut or i al i n Bangl a)( PHP St r i ng Tut or i al i n Bangl a)
: яoяoяoяo
ei s e k o । ei Career e ei s e t i e
।
s e e s e a e store
e i s ,e store echo ।
1.<?php
2.$my_string = "o merciful make me bold and brave!";
3.echo " o merciful make me bold and brave!";
4.echo $my_string;
5.?>
u u p s $my_string d s echo ,
store i e я i s e p i
e store ।
c e u k b uя u ।

e k Double quotes d s e Single quotes d s e i ,
o apostrophes ।
1.<?php
2.$my_string = ‘o merciful make me bold and brave!’;
3.echo ‘o merciful make me bold and brave!’;
4.echo $my_string;
5.?>
s e single quotes e -
echo ‘PHP it’s neat’
e double quotes e single quotes e i।
ei d e p g я e k t , n ei e
o i s quotation i heredoc,e
s e -
1.<?php
2.$my_string = <<<TEST
3.He will be succeeded here
4.and here after!
5.TEST;
6.echo $my_string;
7.?>
e s я a i -
*<<< identifier heredoc TEST ।
* o e e k ।
*e яi e i ,(indent) i ।
u <br>( i b я ) s e ।

7.
ei a uei a uei a uei a u ( PHP Oper at or s)( PHP Oper at or s)( PHP Oper at or s)( PHP Oper at or s)
: яoяoяoяo
a - manipulate 3 a
1.Unary – e (operand) я ।
2.Binary- ।
3.Ternary- 3 ।
e Operator a d -Arithmetic, Assignment, Comparison
Operator etc.
a i aa i aa i aa i a ( ASSI GNMENT OPERAT( ASSI GNMENT OPERAT( ASSI GNMENT OPERAT( ASSI GNMENT OPERATOR)OR)OR)OR)
e aaaa e a e ।
$my_var = 4;
$another_var = $my_var;
e $my_var o $another_var u i 4.
Operator English Example
+ Addition 2+4
- Subtraction 6-2
* Multiplication 5*3
/ Division 15/3
% Modulus 43%10

01.<?php
02.$addition = 2 + 4;
03.$subtraction = 6 - 2;
04.$multiplication = 5 * 3;
05.$division = 15 / 3;
06.$modulus = 5 % 2;
07.echo "Perform addition: 2 + 4 = ".$addition."<br />";
08.echo "Perform subtraction: 6 - 2 = ".$subtraction."<br />";
09.echo "Perform multiplication: 5 * 3 = ".$multiplication."<br />";
10.echo "Perform division: 15 / 3 = ".$division."<br />";
11.echo "Perform modulus: 5 % 2 = " . $modulus ?>
e -
aaaa ( COMPARI SON OPERATOR( COMPARI SON OPERATOR( COMPARI SON OPERATOR( COMPARI SON OPERATOR))))
ei Operator e relationship ei Operator n statement e
statement true false.
e Comparison Operator -
$x=4 o $y=5
Operator English Example Result
== Equal to $x=$y False
!= Not equal to $x!=$y True
< Less than $x<$y True

> Greater than $x>$y False
<= Less than equal to $x<=$y True
>= Greater than equal to $x>=$y False
sT asT asT asT a ( STRI NG OPERATOR)( STRI NG OPERATOR)( STRI NG OPERATOR)( STRI NG OPERATOR)
e i o -“”, ‘’
ARI THMETI CARI THMETI CARI THMETI CARI THMETI C eeee ASSI GNMENT OPERATORASSI GNMENT OPERATORASSI GNMENT OPERATORASSI GNMENT OPERATOR e COMBI NATI ONe COMBI NATI ONe COMBI NATI ONe COMBI NATI ON
Programming e e я c e , k t 1 i
$counter=$counter+1;
k e
$counter+=1;
Pre/Post-Increment eeee Pre/Post-Decrement:
u e ad ,e 1
$x++ $x += 1; a $x = $x + 1 e ।
k t “-” a ।
8.
ei sei sei sei s ( PHP Condi t i onal St at ement )( PHP Condi t i onal St at ement )( PHP Condi t i onal St at ement )( PHP Condi t i onal St at ement )
: яoяoяoяo
u action я n s n o i e e feature
i u i 12 “Good Morning” u 5
“Good evening” ei e o я o a n я Conditional
statement e ,condition e u t ei s k я i ।
ei Conditional statement -
*if statement
*if…else statement
*if…elseif…else statement
*Switch statement
* I F STATEMENT* I F STATEMENT* I F STATEMENT* I F STATEMENT

if statement execute condition true u u
Have a nice day Saturday ।
1.<?php
2.$d=date("D");
3.if ($d=="Sat")
4.echo "Have a nice Day";
5.?>
* I F* I F* I F* I F…ELSE STATEMENTELSE STATEMENTELSE STATEMENTELSE STATEMENT
c o e , , i e i if…else statement
e u e a s i e e ei ।
1.<?php
2.$d=date("D");
3.if ($d=="Sat") echo "Have a nice Day";
4.else
5.echo “Today is not saturday”;
6.?>
condition true a Saturday u
Have a nice day Today is not Saturday.
* I F* I F* I F* I F…ELSEI FELSEI FELSEI FELSEI F…ELSE STATEMENTELSE STATEMENTELSE STATEMENTELSE STATEMENT
ei statement d e e b execute ।
view source
print?
01.<html>
02.<body>
03.<?php
04.if ($number>=60)
05.echo "First Division";
06.elseif ($number>=45 and $number<60)
07.echo “Second Division”;
08.elseif($number>=33 and $number<45)
09.echo "Third Division";
10.else
11.echo “Failed”;
12.?>
13.</body>
14.</html>
9.

ei uei uei uei u ( PHP Loop Tut or i al i n Bangl a)( PHP Loop Tut or i al i n Bangl a)( PHP Loop Tut or i al i n Bangl a)( PHP Loop Tut or i al i n Bangl a)
: яoяoяoяo
e я i e i 50 i e e i 100
я i p g e я c e n i ei t я i i
e ।
c e e statement e b execute k я
।
4 -
While Loop
Do…while Loop
For Loop
Foreach Loop
10.
eieieiei WhileWhileWhileWhile
: яoяoяoяo
e condition true while e b execute ।
1.while (condition)
2.{
3.code to be executed;
4.}
condition false b e b condition
,true execute condition e e i :
01.<html>
02.<body>
03.<?php
04.$i=1;
05.while($i<=5)
06.{
07.echo "The number is " . $i . "<br />";
08.$i++;
09.}
10.?>
11.</body>
12.</html>
p i=1. e while($i<=5) a k k I e 5 p 1

u e -
The number is 1
The number is 2
The number is 3
The number is 4
The number is 5
e I e 6 u ? i e while loop e i execute
।
DODODODO…WHI LE LOOPWHI LE LOOPWHI LE LOOPWHI LE LOOP
e while loop e i e k condition test , , while
e a k e execute i।
1.Do
2.{
3.Code to be executed
4.}
5.While(condition);
u o u e i u я n ।
01.<?php
02.$i=1;
03.do
04.{
05.$i++;
07.}
08.while ($i<=5);
09.?>
n e i=6 i ?
This is line 6
This line is outside while loop.so it will not repeat.
p i e execute p execution e repeat
? n while loop e p i ei ।
11.
ei uei uei uei u ( PHP For Loop)( PHP For Loop)( PHP For Loop)( PHP For Loop)
: яoяoяoяo

ei e я e я while o , e ।
1.for (init; condition; increment)
2.{
4.}
for loop statement b 3 expression k d k 1 assignment
statement(loop control variable),p t i e e execution 2 Boolean
expression p t i e e (evaluate) ,ei true t false
return t n 3 loop control variable e
u i=1 e e k I e 5 e I e 1 ।
1.<?php
2.for ($i=1; $i<=5; $i++)
3.{
5.}
6.?>
Output
The number is 1
The number is 2
The number is 3
The number is 4
The number is 5
expression e e expression , d k Boolean
expression e default true ei u u 1-10 ।
foreach loop e array e i
12.
ei a uei a uei a uei a u ( PHP Ar r ay Tut or i al i n Bangl a)( PHP Ar r ay Tut or i al i n Bangl a)( PHP Ar r ay Tut or i al i n Bangl a)( PHP Ar r ay Tut or i al i n Bangl a)
: яoяoяoяo
e e single value e t(container). n a e value’ container t e a
u p u value -key index u ।
s e e single variable e store e
-
$city1= “Dhaka”
$city2= “Chittagong”

$city3= “Rajshahi”
$city4= “Sylet”
$city5= “Khulna”
$city6= “Barishal”
n e a e e e a d c u k (series of
element) u index 0 k a я c-
1.<?php
2.$city=array(“Dhaka”, “Chittagong”, “Rajshahi”, Sylet”, “Khulna”,
“Barishal”, “Barishal”);
3.?>
e variable e store ,p e e u e p u e index
array’ 1 u e index/key c 0 e Dhaka[0],Chittagong[1]… e
e u e index number u l u
1.<?php
2.Print “$city[3]”;
3.?>
i a ei l ,=> ei a c ei u
a starting index 2 e ।
1.<?php
2.$city=array(2=>“Dhaka”, “Chittagong”, “Rajshahi”, “Sylet”, “Khulna”,
3.?>
ei a u index я ।
a aa aa aa a ( ASSOCI ATI VE ARRAY)( ASSOCI ATI VE ARRAY)( ASSOCI ATI VE ARRAY)( ASSOCI ATI VE ARRAY)
e k index/key i string o e i associative array :
1.<?php
2.$ages = array("adnan"=>32, "rezwan"=>30,"refat"=>34);
3.?>
l il il il i aaaa ( MULTI DI MENSI ONAL AR( MULTI DI MENSI ONAL AR( MULTI DI MENSI ONAL AR( MULTI DI MENSI ONAL ARRAY)RAY)RAY)RAY)
e e a p u e a ei a p u o e a e
e o।
1.<?php
2.
3.$continents=array("Asia"=>array("Bangladesh","India","Pakistan"),
4."Europe"=>array("England","France")"Africa"=>array("Kenya",
5."Libya","Somalia"));
6.
7.?>
aaaa

FOREACH LOOPFOREACH LOOPFOREACH LOOPFOREACH LOOP
e associative array e t foreach statement e :
1.<?php
2.$city=array(“Dhaka”, “Chittagong”, “Rajshahi”, “Sylet”, “Khulna”,
3.foreach ($city as $value)
4.{
5.echo “$value.<br>”;
6.}
7.?>
Output
Dhaka
Chittagong
Rajshahi
Sylet
Khulna
Barishal
Barishal
13.
ei uei uei uei u ( PHP Funct i on)( PHP Funct i on)( PHP Funct i on)( PHP Funct i on)
: яoяoяoяo
e c e b e i b i c execution
e ei e k p 700 e o l i ei ।
e i e execute я я e ।
1.function functionName()
2.{
4.}
: e i ।
ak _ , m ।
e simple
01.<?php

02.function writeName()
03.{
04.echo "Md.Rejoanul Alam";
05.}
06.
07.echo "My name is ";
08.writeName();
09.?>
Output
My name is Md.Rejoanul Alam
o ,e e PHP variable e i e
b
01.<?php
02.function writeName($fname)
03.{
04.echo $fname . " Alam.<br />";
05.}
06.
07.echo "My name is ";
08.writeName("Rejoanul ");
09.echo "My Father's name is ";
10.writeName("Samad");
11.echo "My brother's name is ";
12.writeName("Anjirul");
13.?>
Output
My name is Rejoanul Alam.
My Father's name is Samad Alam.
My brother's name is Anjirul Alam.
u
01.<?php
02.function myGreeting($firstName, $lastName){
03.echo "Hello there ". $firstName ." ". $lastName."!<br />";
04.}
05.myGreeting("Jack", "Black");
06.myGreeting("Ahmed", "Zewail");
07.myGreeting("Julie", "Roberts");
08.myGreeting("Charles", "Schwab");
09.?>
output
Hello there Jack Black!
Hello there Ahmed Zewail!
Hello there Julie Roberts!
Hello there Charles Schwab!

e return return statement
view source
print?
01.<?php
02.function add($x,$y)
03.{
04.$total=$x+$y;
05.return $total;
06.}
07.
08.echo "1 + 16 = " . add(1,16);
09.?>
14.
ei uei uei uei u ( PHP For m)( PHP For m)( PHP For m)( PHP For m)
: яoяoяoяo
e k ei ’ e p e iuя ei ei я
e ei i e ei (iuя i ) -
$_GET e $_POST.e ei e e i l e ।
1.<form action="welcome.php" method="post">
2.Name: <input name="fname" />
3.Age: <input name="age" />
4.<input type="submit" />
5.</form>
iuя k ei i “welcome.php” e
я k method=POST ,Form e ei d

POST e GET.
welcome.php i e
1.Welcome <?php echo $_POST["fname"]; ?>!<br />
2.You are <?php echo $_POST["age"]; ?> years old.
e я rezwan e age 24,e k u e
Welcome rezwan!
You are 24 years old.
15.
eieieiei $_$_$_$_GETGETGETGET ( PHP $_GET Met hod)( PHP $_GET Met hod)( PHP $_GET Met hod)( PHP $_GET Met hod)
: яoяoяoяo
GET e b uя e p e i k
e c 250 character (e e b uя u URL e
)
1.<form action="welcome.php"method="get">
2.Name: <input name="fname" />
3.Age: <input name="age" />
4.<input />
5.</form>
iuя k b uя e
http://www.w3schools.com/welcome.php?fname=Peter&age=37
welcome.php i e $_GET Method g ।
1.Welcome <?php echo $_GET["fname"]; ?>.<br />
2.You are <?php echo $_GET["age"]; ?> years old!
16.
ei s uei s uei s uei s u ( PHP $_POST Met hod)( PHP $_POST Met hod)( PHP $_POST Met hod)( PHP $_POST Met hod)
: яoяoяoяo
ei d i u b uя e o p ।
e ic ( c 8Mb n )
<form action="welcome.php" method="post">
Name: <input name="fname" />
Age: <input name="age" />
<input />

</form>
e iuя k b uя e
http://www.w3schools.com/welcome.php
e $_POST Method d ।
Welcome <?php echo $_POST["fname"]; ?>!<br />
You are <?php echo $_POST["age"]; ?> years old.
al GET Method e iuя password i k t POST Method ।
BBBB....a n eia n eia n eia n ei
1.1.1.1.
a n ei ua n ei ua n ei ua n ei u |||| ( Advanced PHP( Advanced PHP( Advanced PHP( Advanced PHP Tut or i al i n Bangl a)Tut or i al i n Bangl a)Tut or i al i n Bangl a)Tut or i al i n Bangl a)
: яoяoяoяo
webcoachbd.com e ei ei a n u - ei ,k , i , ,e
n i ।
2.
ei uei uei uei u ( PHP Dat e Funct i on Tut or i al i n Bangl a)( PHP Dat e Funct i on Tut or i al i n Bangl a)( PHP Dat e Funct i on Tut or i al i n Bangl a)( PHP Dat e Funct i on Tut or i al i n Bangl a)
: яoяoяoяo
eieieiei ( PHP DATE FUNCTI ON)( PHP DATE FUNCTI ON)( PHP DATE FUNCTI ON)( PHP DATE FUNCTI ON)
o я / i ei e date() d e
view source
print?
1.<?php
2.echo date("Y/m/d") . "<br />";
3.echo date("Y.m.d") . "<br />";
4.echo date("Y-m-d")
5.?>
Output
2009/05/11
2009.05.11
2009-05-11

e n ।
3.
eieieiei i k ui k ui k ui k u ( PHP I ncl ude Funct i on Tut or i al i n( PHP I ncl ude Funct i on Tut or i al i n( PHP I ncl ude Funct i on Tut or i al i n( PHP I ncl ude Funct i on Tut or i al i n
: яoяoяoяo
i c i e k u i ei e e i a a ei i
include() ।
Require()- fatal error( ) e skp e k u n ।
Include()- e skp e k u
e a я e , , a o i
яi e e ei i ( , , i ) a я e
p я e ei include i
e я я i k я
u , “menu.php” e i aa
1.<a href="/default.php">Home</a>
2.<a href="/tutorials.php">Tutorials</a>
3.<a href="/references.php">References</a>
4.<a href="/examples.php">Examples</a>
5.<a href="/about.php">About Us</a>
6.<a href="/contact.php">Contact Us</a>
e e
view source
print?
01.<html>
02.<body>
03.<div>
04.<?php include("menu.php"); ?>
05.</div>
06.<h1>Welcome to my home page.</h1>
07.<p>Some text.</p>
08.</body>
09.</html>
4.
eieieiei ( PHP r equi r e Funct i on Tut or i al i n Bangl a)( PHP r equi r e Funct i on Tut or i al i n Bangl a)( PHP r equi r e Funct i on Tut or i al i n Bangl a)( PHP r equi r e Funct i on Tut or i al i n Bangl a)
: яoяoяoяo
require() include() e i t e u t e n ।

Include() e e я ।
01.<html>
02.<body>
03.
04.<?php
05.include("wrongFile.php");
06.echo "Hello World!";
07.?>
08.</body>
09.</html>
Error message:
Warning: include(wrongFile.php) [function.include
failed to open stream
No such file or directory in C:homewebsitetest.php on line
Warning: include() [function.include
Failed opening 'wrongFile.php' for inclusio
(include_path='.;C:php5pear')
in C:homewebsitetest.php on line
Hello World!
Notice that the echo statement is executed! This is because a Warning does not stop the script
execution.
require() Function eeee eeee яяяя
Now, let's run the same example with the require() function.
1.<html>
2.<body>
3.<?php
4.require("wrongFile.php");
5.echo "Hello World!";
6.?>
7.</body>
8.</html>
Error message:
Warning: require(wrongFile.php) [function.require
failed to open stream
No such file or directory in C:homewebsitetest.php on line
Fatal error: require() [function.require
Failed opening required 'wrongFile.php
(include_path='.;C:php5pear')
in C:homewebsitetest.php on line 5
echo statement e e k u i

5.
ei iei iei iei i uuuu ( PHP Fi l e Funct i on Tut or i al i n( PHP Fi l e Funct i on Tut or i al i n( PHP Fi l e Funct i on Tut or i al i n( PHP Fi l e Funct i on Tut or i al i n
: яoяoяoяo
fopen e ei i
1.<html>
2.<body>
3.<?php
4.$file=fopen("welcome.txt","r");
5.?>
6.</body>
7.</html>
fopen e b я e “welcome.txt”a ei i e d “r” e e
i a s ( ) e “r” i e read only ।
e
Modes Description
r Read only. Starts at the beginning of the file
r+ Read/Write. Starts at the beginning of the file
w
Write only. Opens and clears the contents of file; or creates a new file if it doesn
exist
w+
Read/Write. Opens and clears the contents of file; or creates a new file if
exist
a Append. Opens and writes to the end of the file or creates a new file if it doesn't exis
a+ Read/Append. Preserves file content by writing to the end of the file
x Write only. Creates a new file. Returns FALSE and an error if file already exists
x+ Read/Write. Creates a new file. Returns FALSE and an error if file already exists
i fopen() function e я
1.<html>
2.<body>
3.<?php
4.$file=fopen("welcome.txt","r") or exit("Unable to open file!");
5.?>
6.</body>
7.</html>
e i k яe i k яe i k яe i k я

fclose() function i n ।
1.<?php
2.$file = fopen("test.txt","r");
3.
4.//some code to be executed
5.
6.fclose($file);
7.?>
ENDENDENDEND---- OFOFOFOF---- FILEFILEFILEFILE
e i ।
if (feof($file)) echo "End of file";
e e я ।
e ie ie ie i LINE BY LINELINE BY LINELINE BY LINELINE BY LINE
fgets() function ei e e i ei i
i u e e e i n।
01.<?php
02.$file = fopen("welcome.txt", "r") or exit("Unable to open file!");
03.//Output a line of the file until the end is reached
04.while(!feof($file))
05.{
06.echo fgets($file). "<br />";
07.}
08.fclose($file);
09.?>
CHARACTER BY CHARACTCHARACTER BY CHARACTCHARACTER BY CHARACTCHARACTER BY CHARACTERERERER e ie ie ie i
fgetc() function e i e e ak ।
u i e e ak ।
view source
print?
1.<?php
2.$file=fopen("welcome.txt","r") or exit("Unable to open file!");
3.while (!feof($file))
4.{
5.echo fgetc($file);
6.}
7.fclose($file);
8.?>

6.
ei i uei i uei i uei i u ( PHP Fi l e Upl oad Tut or i al i n( PHP Fi l e Upl oad Tut or i al i n( PHP Fi l e Upl oad Tut or i al i n( PHP Fi l e Upl oad Tut or i al i n
: яoяoяoяo
ei iuя i
01.<html>
02.<body>
03.
04.<form action="upload_file.php" method="post"
05.enctype="multipart/form-data">
06.<label for="file">Filename:</label>
07.<input />
08.<br />
09.<input type="submit" name="Submit"value="Submit" />
10.</form>
11.</body>
12.</html>
e action="upload_file.php" e method="post" a k
s e upload_file.php i e upload_file.php e ।
Upload_file.php skp e
01.<?php
02.if ($_FILES["file"]["error"] > 0)
03.{
04.echo "Error: " . $_FILES["file"]["error"] . "<br />";
05.}
06.else
07.{
08.echo "Upload: " . $_FILES["file"]["name"] . "<br />";
09.echo "Type: " . $_FILES["file"]["type"] . "<br />";
10.echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
11.echo "Stored in: " . $_FILES["file"]["tmp_name"];
12.}
13.?>
global PHP $_FILES a k in mu i ।
• $_FILES["file"]["name"] – i
• $_FILES["file"]["type"] - i type
• $_FILES["file"]["size"] - i size
• $_FILES["file"]["tmp_name"] i temporary copy k ।
i c i e t я u i
20 i a i .jpeg,.jpg,.gif
i i ।

01.<?php
02.if ((($_FILES["file"]["type"] == "image/gif")
03.|| ($_FILES["file"]["type"] == "image/jpeg")
04.|| ($_FILES["file"]["type"] == "image/pjpeg"))
05.&& ($_FILES["file"]["size"] < 20000))
06.{
08.{
09.echo "Error: " . $_FILES["file"]["error"] . "<br />";
10.}
11.else
12.{
16.echo "Stored in: " . $_FILES["file"]["tmp_name"];
17.}
18.}
19.else
20.{
21.echo "Invalid file";
22.}
23.?>
iiii
i u i as (temporary copy) ,s я e
01.<?php
02.if ((($_FILES["file"]["type"] == "image/gif")
03.|| ($_FILES["file"]["type"] == "image/jpeg")
04.|| ($_FILES["file"]["type"] == "image/pjpeg"))
05.&& ($_FILES["file"]["size"] < 20000))
06.{
08.{
09.echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
10.}
11.else
12.{
16.echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />";
17.
18.if (file_exists("upload/" . $_FILES["file"]["name"]))
19.{
20.echo $_FILES["file"]["name"] . " already exists. ";
21.}
22.else
23.{

24.move_uploaded_file($_FILES["file"]["tmp_name"],
25."upload/" . $_FILES["file"]["name"]);
26.echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
27.}
28.}
29.}
30.else
31.{
32.echo "Invalid file";
33.}
34.?>
skp i ei i , move_uploaded_file
l i ।
u u “upload” e l i ।
7.
ei k uei k uei k uei k u ( PHP Cooki e Tut or i al i n Bangl a)( PHP Cooki e Tut or i al i n Bangl a)( PHP Cooki e Tut or i al i n Bangl a)( PHP Cooki e Tut or i al i n Bangl a)
: яoяoяoяo
e я iuя k e e c e i iuя (e /я
)।ধরুন i i e a k i я i i i
iuя i c ,i я i iuя e я c,e i i k
i ei (iuя o i ) k ।
kkkk
setcookie() function e k ।
setcookie() function a i <html> e ।
setcookie(name, value, expiration);
namename:e k , ei k ।
value:e k k , k c username(string)e last visit(date)
expiration:e oi k ei (k k )
b uя s i k ।
u e k iuя o i visit i k
e e я iuя i i k
e 30 a e oi s iuя ignore 30 e
i ।
1.<?php
2.$expire=time()+60*60*24*30;

3.setcookie("user", "rezwan",$expire);
4.?>
5.<html>
6......
k udk udk udk ud ((((RETRIEVERETRIEVERETRIEVERETRIEVE))))
k ei $_COOKIE variable k retrieve ।
1.<?php
2.if(isset($_COOKIE['lastVisit']))
3.$visit = $_COOKIE['lastVisit'];
4.else
5.echo "You've got some stale cookies!";
6.
7.echo "Your last visit was - ". $visit;
8.?>
ei isset e "lastVisit" k e o iuя ,
iuя visit ।
kkkk
k e k ।
view source
print?
1.<?php
2.// set the expiration date to one hour ago
3.setcookie("user", "", time()-3600);
4.?>
8.
ei uei uei uei u ( PHP Sessi on Tut or i al i n Bangl a)( PHP Sessi on Tut or i al i n Bangl a)( PHP Sessi on Tut or i al i n Bangl a)( PHP Sessi on Tut or i al i n Bangl a)
: яoяoяoяo
e p я , , n n e e mu
я , e n in e -o
e k ei ei ei iuя
k я ei as e iuя i s
ei p iuя я a unique id (UID) ।
ei iuя k ei session_start()
e <html> tag e ।
1.<?php session_start(); ?>
2.
3.<html>
4.<body>

5.
6.</body>
7.</html>
ei iuя яs e ei e i ।
kkkk
k o ud u $_SESSION ।
01.<?php
02.session_start();
03.// store session data
04.$_SESSION['views']=1;
05.?>
06.<html>
07.<body>
08.
09.<?php
10.//retrieve session data
11.echo "Pageviews=".$_SESSION['views'];
12.?>
13.
14.</body>
15.</html>
u
Pageviews=1
u page view counter(page я ) я e я isset()
ei ‘views’ i ‘views’ variable
a counter ‘views’variable e e 1
।
01.<?php
02.session_start();
03.
04.if(isset($_SESSION['views']))
05.$_SESSION['views']=$_SESSION['views']+1;
06.else
07.$_SESSION['views']=1;
08.echo "Views=". $_SESSION['views'];
09.?>
eeee ( DESTROYI NG A SESSI O( DESTROYI NG A SESSI O( DESTROYI NG A SESSI O( DESTROYI NG A SESSI ON)N)N)N)
unset() or the session_destroy() function ]
unset() function e ।
1.<?php
2.unset($_SESSION['views']);
3.?>

e m session_destroy() function ।
1.<?php
2.session_destroy();
3.?>
session_destroy() reset e e ।
9.
ei e h uei e h uei e h uei e h u ( PHP Er r or Handl er Tut or i al i n( PHP Er r or Handl er Tut or i al i n( PHP Er r or Handl er Tut or i al i n( PHP Er r or Handl er Tut or i al i n
: яoяoяoяo
ei skp o e p error handling e e t e
( ) p g e t я ।
ei u e e p d
"die()" statements
Custom errors and error triggers
Error reporting
""""DIEDIEDIEDIE()"()"()"()" ssss eeee hhhh
e e kk i ।
1.<?php
3.?>
i a s i b uя p ।
Warning: fopen(welcome.txt) [function.fopen]: failed to open stream:
No such file or directory in C:webfoldertest.php on line 2
iuя u я k я я
01.<?php
02.if(!file_exists("welcome.txt"))
03.{
04.die("File not found");
05.}
06.else
07.{
09.}
10.?>
e i ei я ।
File not found

ei u e n e e d e error skp n e d
a ।
s e hs e hs e hs e h
e e ei e call ei k (error level and
error message) e c (optionally: file, line-number, and the error context) ।
error_function(error_level,error_message,error_file,error_line,error_context)
Parameter Description
error_level iuя error report level a i e
value number m error report level ।
error_message iuя я error message ।
error_file c i u l ।
error_line c i u l ।
error_context c e a u l (Specifies an array) e ।
e ee ee ee e ( VALUE)( VALUE)( VALUE)( VALUE)
Value Constant Description
2 E_WARNING run-time errors. sk p Execution n
8 E_NOTICE Run-time notices.
256 E_USER_ERROR iuя t e E_ERROR e p g PHP
function trigger_error() ।
512 E_USER_WARNING Runtime warnings generated by a call totrigger_error( )
1024 E_USER_NOTICE Runtime warnings generated by a call totrigger_error( )
4096 E_RECOVERABLE_ERROR Catchable fatal error.
8191 E_ALL errors e warnings, level E_STRICT (E_STRICT
PHP 6.0
e E_ALL e a )
e ee ee ee e e h ee h ee h ee h e яnяnяnяn
1.function customError($errno, $errstr)
2.{
3.echo "<b>Error:</b> [$errno] $errstr<br />";

4.echo "Ending Script";
5.die();
6.}
e e error handling e e e error level e я ei e я
u skp p ।
e he he he h
ei l e error handler li i c e я error handler
PHP u ei я error handler
set_error_handler("customError");
error handle я я i, i set_error_handler() e e
,2 error level e я ।
e e u
01.<?php
02.//error handler function
04.{
05.echo "<b>Error:</b> [$errno] $errstr";
06.}
07.
08.//set error handler
09.set_error_handler("customError");
10.
11.//trigger error
12.echo($test);
13.?>
u u e
Error: [8] Undefined variable: test
TRIGGERTRIGGERTRIGGERTRIGGER
skp iuя i trigger u iuя /a i
trigger_error() function e ei u test 1 e error ।
1.<?php
2.$test=2;
3.if ($test>1)
4.{
5.trigger_error("Value must be 1 or below");
6.}
7.?>
u
Notice: Value must be 1 or below
in C:webfoldertest.php on line 6
e error sk p я trigger e error

level trigger ।
mmmm error eeee
• E_USER_ERROR
• E_USER_WARNING
• E_USER_NOTICE
u
test e 1 e e E_USER_WARNING error e e я
error handler ।
01.<?php
02.//error handler function
04.{
05.echo "<b>Error:</b> [$errno] $errstr<br />";
06.echo "Ending Script";
07.die();
08.}
09.
10.//set error handler
11.set_error_handler("customError",E_USER_WARNING);
12.
13.//trigger error
14.$test=2;
15.if ($test>1)
16.{
17.trigger_error("Value must be 1 or below",E_USER_WARNING);
18.}
19.?>
u
Error: [512] Value must be 1 or below
Ending Script
eeee
PHP error_log() e li e ic error log( )
e я i o।
i i ei i ei i ei i e яяяя
<?php
//error handler function
function customError($errno, $errstr)
{
echo "<b>Error:</b> [$errno] $errstr<br />";
echo "Webmaster has been notified";

error_log("Error: [$errno] $errstr",1,
" someone@example.com","From: webmaster@example.com");
}
//set error handler
set_error_handler("customError",E_USER_WARNING);
//trigger error
$test=2;
if ($test>1)
{
trigger_error("Value must be 1 or below",E_USER_WARNING);
}
?>
u
Webmaster has been notified
ei e e i
10.
ei l uei l uei l uei l u ( PHP Fi l t er Tut or i al i n Bangl a)( PHP Fi l t er Tut or i al i n Bangl a)( PHP Fi l t er Tut or i al i n Bangl a)( PHP Fi l t er Tut or i al i n Bangl a)
: яoяoяoяo
a u iuя i ei l g (validate/acceptable) e
(filter) o e p e i t o e p i i u
o e p i i filter i
d я e t я n u -
• e i
• k
• o
•
•
e le le le l
filter -
• filter_var() – e l e filter ।
• filter_var_array() – e i n l e l ।

• filter_input – e i e l
• filter_input_array – e i e e i n l l ।
• u filter_var() function e validate
01.<?php
02.$int = 123;
03.
04.if(!filter_var($int, FILTER_VALIDATE_INT))
05.{
06.echo("Integer is not valid");
07.}
08.else
09.{
10.echo("Integer is valid");
11.}
12.?>
ei "FILTER_VALIDATE_INT" d $int l ,e u "Integer is valid"
123 e integer.
VALIDATINGVALIDATINGVALIDATINGVALIDATING eeee SANI TI ZI NGSANI TI ZI NGSANI TI ZI NGSANI TI ZI NG
l 2
VALI DATI NG FI LTERS:VALI DATI NG FI LTERS:VALI DATI NG FI LTERS:VALI DATI NG FI LTERS:
• user input validate
• ( URL E-Mail validating)
SANI TI ZI NG FI LTERS:SANI TI ZI NG FI LTERS:SANI TI ZI NG FI LTERS:SANI TI ZI NG FI LTERS:
• e s e ak a я ।
• s return ।
OPTIONSOPTIONSOPTIONSOPTIONS eeee FLAGSFLAGSFLAGSFLAGS
Option e Flag l a k filtering option n l n option e
flag u e validate filter_var() l e "min_range" o "max_range"
option ।
01.<?php
02.$var=300;
03.
04.$int_options = array(
05."options"=>array
06.(
07."min_range"=>0,

08."max_range"=>256
09.)
10.);
11.
12.if(!filter_var($var, FILTER_VALIDATE_INT,$int_options))
13.{
14.echo("Integer is not valid");
15.}
16.else
17.{
18.echo("Integer is valid");
19.}
20.?>
u options a i associative array e “options’’ flag
e a o я e 300 n i e u
"Integer is not valid".
VALI DATE I NPUTVALI DATE I NPUTVALI DATE I NPUTVALI DATE I NPUT
p i я a st filter_input() function d
i l u
01.<?php
02.if(!filter_has_var(INPUT_GET, "email"))
03.{
04.echo("Input type does not exist");
05.}
06.else
07.{
08.if (!filter_input(INPUT_GET, "email", FILTER_VALIDATE_EMAIL))
09.{
10.echo "E-Mail is not valid";
11.}
12.else
13.{
14.echo "E-Mail is valid";
15.}
16.}
17.?>
:u u e i (i i ) "GET" method ।
1. i e "email" GET a st ।
2. i e a st e i i e ।
SANI TI ZE I NPUTSANI TI ZE I NPUTSANI TI ZE I NPUTSANI TI ZE I NPUT
p i я a st filter_input() function d
i sanitize u
01.<?php
02.if(!filter_has_var(INPUT_POST, "url"))

03.{
04.echo("Input type does not exist");
05.}
06.else
07.{
08.$url = filter_input(INPUT_POST,
09."url", FILTER_SANITIZE_URL);
10.}
11.?>
:u u e i (url) "POST" method ।
1. i e "url" POST a st ।
2. i e a st sanitize(ap я ak ) e e $url variable e k
।
i e s "http://www.W3ååSchøøools.com/" $url variable sanitizing e
e ।
http://www.W3Schools.com/
e ie ie ie i llll
e e i l e e call e filter
filter_var_array the filter_input_array function
view source
print?
01.<?php
02.$filters = array
03.(
04."name" => array
05.(
06."filter"=>FILTER_SANITIZE_STRING
07.),
08."age" => array
09.(
10."filter"=>FILTER_VALIDATE_INT,
11."options"=>array
12.(
13."min_range"=>1,
14."max_range"=>120
15.)
16.),
17."email"=> FILTER_VALIDATE_EMAIL,
18.);
19.
20.$result = filter_input_array(INPUT_GET,$filters);
21.
22.if (!$result["age"])
23.{
24.echo("Age must be a number between 1 and 120.<br />");

25.}
26.elseif(!$result["email"])
27.{
28.echo("E-Mail is not valid.<br />");
29.}
30.else
31.{
32.echo("User input is valid");
33.}
34.?>
11.
eieieiei iiii ( PHP Mai l Funct i on Tut or i al i n Bangl a)( PHP Mai l Funct i on Tut or i al i n Bangl a)( PHP Mai l Funct i on Tut or i al i n Bangl a)( PHP Mai l Funct i on Tut or i al i n Bangl a)
: яo
PHP mail() d o я i i ।
1.mail(to,subject,message,headers,parameters)
to я ।e i i i i ।
subject я ।e u l ।
message я ।e я । я i (n) h d e i 70 ak
headers c ।e d a k । :From,Cc,Bcc.
parameters c ।a k ।
: i я s i i i s e php.ini i i a
>> c? b o i- i s p i
i s i e i e k k ।
e u i e p u n s c n
i u я a
e я ei i u e k я i
(a someone@example.com ei i )
PHP MAI L FORMPHP MAI L FORMPHP MAI L FORMPHP MAI L FORM
<html>

<body>
<?php
if (isset($_REQUEST['email']))
//if "email" is filled out, send email
{
//send email
$email = $_REQUEST['email'] ;
$subject = $_REQUEST['subject'] ;
$message = $_REQUEST['message'] ;
mail( " someone@example.com", "Subject: $subject",
$message, "From: $email" );
echo "Thank you for using our mail form";
}
else
//if "email" is not filled out, display the form
{
echo "<form method='post' action='mailform.php'>
Email: <input name='email' type='text' /><br />
Subject: <input name='subject' type='text' /><br />
Message:<br />
<textarea name='message' rows='15' cols='40'>
</textarea><br />
<input type='submit' />
</form>";
}
?>
</body>
</html>
::::
p i i e
HTML i o
i o
ei 3 logic e ।
e k я reload e i i e i
।
::::e d e ei a iuя ie d e ei a iuя ie d e ei a iuя ie d e ei a iuя i
e i i i я ।i i i я ue i i i я ।i i i я ue i i i я ।i i i я ue i i i я ।i i i я u form validationform validationform validationform validation.... PHPPHPPHPPHP
llll ((((FilterFilterFilterFilter)))) a ua ua ua u

CCCC.... ei oei oei oei o
1.1.1.1.
ei o uei o uei o uei o u |||| ( PHP Fr amewor k Tut or i( PHP Fr amewor k Tut or i( PHP Fr amewor k Tut or i( PHP Fr amewor k Tut or i al i nal i nal i nal i n
: яoяoяoяo
• ei o (PHP Framework) c e basic Platform/structure( ) o a p
।
• d , like k ei s я n (like) ,p я
j e i e e e e p e u ।
• PHP Framework e p -p ,
k,d a p ।
• e e o я ,e o o a , я i
।
я ei o (PHP Framework) e e o i s яi e o i
e i a ।
ei o (PHP Framework) я
1.PHP( PHP Function, Variable etc)
2.Object Oriented Programming
3.MVC(Model View Controller)Structure
a ei o яn o , , , i i i яn e i i
я p яn e я -яn en p iя ei e я i p i o
o я u i i , i e i i (CodeIgniter PHP
Framework) e u ।
2.
a яk a p g e eia яk a p g e eia яk a p g e eia яk a p g e ei ( OOP & PHP Tut or i al i n Bangl a)( OOP & PHP Tut or i al i n Bangl a)( OOP & PHP Tut or i al i n Bangl a)( OOP & PHP Tut or i al i n Bangl a)
: яoяoяoяo

p u ap u ap u ap u a p gp gp gp g ---- POP ( PROCEDURE ORI ENPOP ( PROCEDURE ORI ENPOP ( PROCEDURE ORI ENPOP ( PROCEDURE ORI ENTED PROGRAMMI NG)TED PROGRAMMI NG)TED PROGRAMMI NG)TED PROGRAMMI NG)
u language FORTRAN(Formula Translation-e Statistician
)COBOL,C i s i p g Procedure
Oriented Programming(POP).PHP o e p g POP
(instruction/actions) ,ei mu я ei g s
e p g e a ,p a i e p g e e + ।
e p g n я n e e p g i
i POP a global data k n
e o ।
a яk a pa яk a pa яk a pa яk a p gggg ---- OOP( OBJECTOOP( OBJECTOOP( OBJECTOOP( OBJECT ORI ENTED PROGRAMMI NGORI ENTED PROGRAMMI NGORI ENTED PROGRAMMI NGORI ENTED PROGRAMMI NG))))
OOP a яk a n p g (Object Oriented Programming) ei k
e OOP critical element e s k p (free flow) n OOP
e e Objects ,e я ei a яk e / sk
/ d k m /(interact)
OOPOOPOOPOOP
*e k ( ei operate )
* p g Object k a e p g a Object
*e Object e e ,ei (Operate )
* i ei e ।
* d e Object Object e ।
*e p g e ।
OOP
• Objects
• Class
• Encapsulation
• Inheritence
• Polymorphism
• Message passing
a яka яka яka яk ( OBJECTS)( OBJECTS)( OBJECTS)( OBJECTS)
a яk e ,ei ( ) a яk c e
(a bundle) e n e k k e a яk e k , k

я a я ko , k a яk c ei a яk
a ( )।কিন্তু e a o ।
a яk a n ei e a яk e / / (bunch).e g
я ei a яk e t я e u e s n ( ei skp ), e c
e (bunch) (a яk ), s n e я , p (a яk) я я я
m s nt ।
k ei ( d -Procrdure Oriented way) e
(bunch) sk pi ।
kkkk ( CLASS)( CLASS)( CLASS)( CLASS)
ei a яk ei a яk e я e /e l
(blueprint/template/outline) e p (e a яk e я ) k ।
k c a я k я (blueprint).e k c a я k я e e l e
e k я , a e k e a яk m e
a яk a n ei ei e living,breathing a яk k e u t
living,breathing a яk c ei a яk ।
e se se se s ( ENCAPSULATI ON)( ENCAPSULATI ON)( ENCAPSULATI ON)( ENCAPSULATI ON)
e k (class) e e i e e k e k e k
i e o a i ei p t ei k
i i i ei e i ei e n
o p k (data hiding/information hiding)
i ni ni ni n ( I NHERI TANCE)( I NHERI TANCE)( I NHERI TANCE)( I NHERI TANCE)
OOP i n : (reusability) p a e k a k
k i sk p e k e k ei k a
k k k (super class/base class) k e
k /p k (subclass/derived class).extends ei o k e k ।
яяяя ( POLYMORPHI SM)( POLYMORPHI SM)( POLYMORPHI SM)( POLYMORPHI SM)
e a яk e я e i n я ei p k я ।
я a kя a kя a kя a k ( MESSAGE PASSI NG)( MESSAGE PASSI NG)( MESSAGE PASSI NG)( MESSAGE PASSI NG)
e OO Program e e a яk e e e a a e a яk
a яk e я ei p k i я a k ।

3.
a яka яka яka яk aaaa eieieiei ( OOPHP Tut or i al i n Bangl a)( OOPHP Tut or i al i n Bangl a)( OOPHP Tut or i al i n Bangl a)( OOPHP Tut or i al i n Bangl a)
eeee u ।।।। e
ei 5 (PHP5) ei 5 m a яk a n e ei 4 m a яk
a n ei 5 a яk a n o e я , , o e p я
OOPHP ei , , n s n, i ।
u я e 23 a ( ) ।
---- ::::
pppp ei я rei я rei я rei я r
index.php
class_lib.php
a яk a n e i i i ei ‘includes’ ei
e я ei u я a яk a n class_lib.php i OOP
k я k c m p /k a яk e я a яk m ।
---- ::::
eeee ei kei kei kei k
ei sk p , , i a яk a n d
p i e k k я p i ‘class’ b e e k i c ।
1.<?php
2.class people{
3.
4.}
5.?>

---- ::::
kkkk
k c a я k я b pn/ k e ei
‘property’
1.<?php
2.class people{
3.var name;
4.}
5.?>
: e k / (ei u var name;) e ‘properties’
---- ::::
kkkk ////
e k e ‘properties’ e k e
‘methods’ ( k e ei )e
k /methods i k /properties ।
<?php
class people{
var $name;
function set_name($new_name){
$this->name=$new_name;
}
function get_name(){
return $this->name;
}
}
?>

k properties e ।
---- ::::
gettergettergettergetter eeee settersettersettersetter
/ get_name() e set_name() ei я e
e k getter e setter a i property ।
<?php
class people{
var $name;
function set_name($new_name){
$this->name=$new_name;
}
function get_name(){
return $this->name;
}
}
?>
e k getter e setter property e ei p g
a яk я i t set_name() / e
a i e property/variable ‘name’
---- ::::
‘$t hi s$t hi s$t hi s$t hi s’
m i
$this->name=$new_name
$this e li ( a я ki e l i ) a яk a e e self-
referencing e properties e e e e k
।
function get_name() {
return $this->name;
}

e e e ei o e ei ei
ei i я ।
---- ::::
ei я ei kei я ei kei я ei kei я ei k
ei я ei k a яk a n p g e u d i k
e ei я ei я e ‘include’ ‘require’ ।
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//BN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UFT-8" />
<title>OOPHP in Webcoachbd</title>
<?php include("class_lib.php"); ?>
</head>
<body>
</body>
</html>
n e o k ,e ।
---- ::::
a яka яka яka яk
e k a яk p k instantiation.
</head>
<body>
$rejoan = new people();
</body>
</html>

$rejoan people a яk e я n $rejoan ei people
a яk nt e я ।
---- ::::
newnewnewnew oooo
e k a яk ei new o p я ।
i c e k a a яk ei i я p a яk (s nt
st )
</head>
<body>
$riad = new people;
</body>
</html>
a яk k quote a e
$rejoan= new 'people';
---- ::::
a яka яka яka яk propertiespropertiespropertiesproperties ((((setsetsetset)))) ।।।।
a яk people ,e properties (set)
(the setters) ।
e o a яk e 2 ($rejoan e $riad) e i k people e u t
ei n m a ei e 2 a яk
m ।
</head>
<body>
<?php

$riad= new people;
$rejoan->set_name("Rejoanul Alam");
$riad->set_name("Anjirul Alam");
?>
</body>
</html>
---- ::::
a я k ea я k ea я k ea я k e
e getter a я k e e i setter
a я k ।
k e properties e e i a (->) h ।
</head>
<body>
<?php
$riad = new people;
$rejoan->set_name("Rejoanul Alam");
echo "Rejoan's full name: " . $rejoan->get_name();
echo "Riad's full name: " . $riad->get_name();
?>
</body>
</html>
:ei a (->) h e a (=>) ei h n e ।
a n ei u a ।
:
e ei k я i
ei k u t e я a яk
a я k

a яk
-12:
a яka яka яka яk propertiespropertiespropertiesproperties e ee ee ee e ???? eeee
a я k properties e e , a (->) a
e u s :
$rejoan->name.
o e o e e e я d e
getter ।
</head>
<body>
<?php
$riad = new people;
$stefan->set_name("Rejoanul Alam");
// directly accessing properties in a class is a no-no.
echo "Rejoan’s full name: " . $rejoan->name;
?>
</body>
</html>
---- ::::
sT ksT ksT ksT k
a я k e li s k e a я k properties e ।
:__construct() ei a __construct /
e k e a яk ।
‘construct’ n s (__) s k k e k
(e ) ei d ।

<?php
class people {
var $name;
function __construct($people_name) {
$this->name = $people_name;
}
function set_name($new_name) {
$this->name = $new_name;
}
return $this->name;
}
}
?>
ei u k
functions=methods
variables=properties
-14:
constructconstructconstructconstruct e a яke a яke a яke a яk
e s k ,e people a яk $name property’
u :
$rejoan = new people("Rejoanul Alam");
e set_name() e sk p ।
</head>
<body>
<?php
echo "Rejoan’s full Name: " . $rejoan->get_name();
?>
</body>

</html>
e e u a яk a n ei e li (mechanism)
ei ।
---- ::::
propertiespropertiespropertiesproperties e e e d ।e e e d ।e e e d ।e e e d ।
a яk a n p g e e e (encapsulation).e a я k s
(properties) e e d ।
k properties e e d я ‘access modifier’ 3 e -
1. public
2. private
3. protected
l public ।
<?php
class people {
var $name;
public $height;
protected $social_insurance;
private $pinn_number;
<i>} </i>
function set_name($new_name) {
}
return $this->name;
}
}
?>
: ‘var’ o properties (declare) e ‘public’ ।

-16:
propertiespropertiespropertiesproperties e e d ।ae e d ।ae e d ।ae e d ।a ----
e property private e i k e ।
property protected t e i k e p k (derived class/ei
k k p o k k properties e e ) ei k e
я e i k e p k k ।
public d i u sk p я e e ।
</head>
<body>
<?php
/*
$pinn_number private i ei e ,p g i
*/
echo "Tell me private stuff: " . $rejoan->$pinn_number;
?>
</body>
</html>
---- ::::
e de de de d
properties e o ei 3 e e nt ।
1. public
2. private
3. protected
e ?
ut : e e , k a ei p g ei
e t e p я k e a ei p g я e
i o ।

<?php
class people {
var $name;
public $height;
protected $social_insurance;
private $pinn_number;
}
private function get_pinn_number() {
return $this->$pinn_number;
}
}
?>
: get_pinn_number() e private i ei t k , k
sk p a o ei public ।
---- ::::
:::: ::::i ni ni ni n
a яk a n p g e i n (Inheritence) e d e k a
k /k k ।
e ?
ut :e d k : e k c
‘employee’ employee e people/person i e i e properties
।
e ?
ei a s i n e e i :
k n e d ei ।
1. sk p e i ।
2. : c i e a (a ) k n i e i
a ei ‘includes()’ e я ।

// 'extends' ei o i n
class employee extends people {
function __construct($employee_name) {
}
---- ::::
:::: ।a।a।a।a ----
employee k k people i employee k a people k
‘public’ properties, ei k (a ei k )।
$this->set_name($employee_name);
}
}
k employee k set_name() o ei employee k
(declare) i ei i people k ।
-20:
:::: ।a।a।a।a ----
employee a я k get_name() people k я e
e d u (e i / )
<title>OOPHP in Webcoachbd</title>
</head>
<body>
<?php
// Using our PHP objects in our PHP pages.
$riad = new employee("Anjirul Alam");

echo "Riad’s full name " . $riad->get_name();
?>
</body>
</html>
---- ::::
Over r i ddi ngOver r i ddi ngOver r i ddi ngOver r i ddi ng
( i n ) e k я e p я
।
u s set_name() people k n employee k ।
n people k set_name() Override employee k ei e i
।
<?php
class people {
// explicitly adding class properties are optional - but is good practice
var $name;
}
public function get_name() {
return $this->name;
}
//protected methods and properties restrict access to those elements.
protected function set_name($new_name) {
if (name != "Jimmy Two Guns") {
$this->name = strtoupper($new_name);
}
}
}
if ($new_name == "Stefan Sucks") {
}
}

}
}
?>
k set_name() people k ( k ) n employee k
।
-22:
OverridingOverridingOverridingOverriding....aaaa ----
o k e , i k p k (e child k o
) override ।
u employee k set_name() override e e
people::set_name($new_name);
e parent k (People) set_name() e ।
<?php
class people {
var $name;
}
return $this->name;
}
}
}
}
// 'extends' is the keyword that enables inheritance

}
else if($new_name == "Anjirul Alam") {
people::set_name($new_name);
}
}
}
}
?>
---- ::::
overridingoverridingoverridingoverriding aaaa ----
'people::set_name()' e ei i я people k set_name() я
।
d parent o k parent k ( k
parent k ) ।
<?php
class people {
var $name;
}
return $this->name;
}
}
}
}
// 'extends' is the keyword that enables inheritance

}
else if($new_name == "Anjirul Alam") {
parent::set_name($new_name);
}
}
}
}
?>
::::
a яk a n p g e e e OOPHP e я
я a я e OOP k d я e e
, я a яk e n я
e 8/10 e a яk k я ।
OOPOOPOOPOOP e p ge p ge p ge p g
a яk a n p g o e d a я e ei
я , ei , , ++ i ।
o я a яk a n i e я e i
o s e p ( o ) o e p
(o ) i OOP e u a яk
a n ei i i e я ।
e e e i , ei p я k я p a s e я e я
n e s n p яk a яk nd
eя a яk p яk g k g -
Ø o я ।
Ø p a яk p яn я k k
Ø ei k e properties e
Ø a e a яk m (parent-child/base-derived)
4.

u T sT uu T sT uu T sT uu T sT u ( MVC St r uct ur e Tut or i al i n( MVC St r uct ur e Tut or i al i n( MVC St r uct ur e Tut or i al i n( MVC St r uct ur e Tut or i al i n
: яoяoяoяo
u n s MVC Structure (e я i d ) ei e p
я
01.<?php
02.include "common-libs.php";
03.include "config.php";
04.mysql_connect($hostname, $username, $password);
05.mysql_select_db($database);
06.?>
07.<?php include "header.php"; ?>
08.<h1>Home Page</h1>
09.<?php
10.$sql = "SELECT * FROM news";
11.$result = mysql_query($sql);
12.?>
13.<table>
14.<?php
15.while ($row = mysql_fetch_assoc($result)) {
16.?>
17.<tr>
18.<td><?php echo $row['date_created']; ?></td>
19.<td><?php echo $row['title']; ?></td>
20.</tr>
21.<?php
22.}
23.?>
24.</table>
25.<?php include "footer.php"; ?>
e ei m i a a m u n
я i ei e ei MVC Structure 3 n я
e i e я ei 3
(Model)
u (View)
n (Controller)
( MODEL) :( MODEL) :( MODEL) :( MODEL) :
i i e e p ,ei e p a t
(a я ) d i , , i
a a s p яn ei я я я (business logic)
uuuu ( VI EW) :( VI EW) :( VI EW) :( VI EW) :

e s d iuя e я a e e o я ei e e
я i i e e я e a o я , , e e я i ।
TTTT ( CONTROLLER) :( CONTROLLER) :( CONTROLLER) :( CONTROLLER) :
n s d e u e я e a a e u
я ei я e ।
i i o MVC a u n s e t я a e e
।
5.
i i ui i ui i ui i u e i se i se i se i s ( CodeI gni t er Downl oad & I nst al l( CodeI gni t er Downl oad & I nst al l( CodeI gni t er Downl oad & I nst al l( CodeI gni t er Downl oad & I nst al l
Tut or i al i n Bangl a)Tut or i al i n Bangl a)Tut or i al i n Bangl a)Tut or i al i n Bangl a)
: яoяoяoяo
p http://codeigniter.com/downloads/e i i o u , e .zip format e
e я e o , я c i e c
htdocs folder,e ei F:Program Filesxampphtdocs. e C Drive e C

drive e F i F c ei C:Program Filesxampphtdocs. e e
u (e я ) l a s l CodeIgniter.
e i i l e system>>application>> config>>config.php i m k e
।
view source
print?
01.|-------------------------------------------------------------------------
-
02.| Base Site URL
03.|-------------------------------------------------------------------------
-
04.
05.
06.$config['base_url'] = "http://localhost/CodeIgniter/";
07.
08.
09.
10.
11.|-------------------------------------------------------------------------
-
12.| Index File
13.|-------------------------------------------------------------------------
-
14.
15.
16.$config['index_page'] = "index.php";
17.
18.
19.
20.
21.|-------------------------------------------------------------------------
-
22.| Default Language
23.|-------------------------------------------------------------------------
-
24.
25.
26.$config['language'] = "english";
27.
28.
29.
30.
31.|-------------------------------------------------------------------------
-
32.| Default Character Set
33.|-------------------------------------------------------------------------
-
34.
35.

36.$config['charset'] = "UTF-8";
37.
38.
39.
40.
41.|-------------------------------------------------------------------------
-
42.| Cache Directory Path
43.|-------------------------------------------------------------------------
-
44.
45.
46.$config['cache_path'] = 'http://127.0.0.1/codeigniter/cache/';
47.
48.
49.
50.
51.|-------------------------------------------------------------------------
-
52.| Session Variables
53.|-------------------------------------------------------------------------
-
54.
55.
56.$config['sess_cookie_name'] = 'ci_session';
57.$config['sess_expiration'] = 7200;
58.$config['sess_encrypt_cookie'] = FALSE;
59.$config['sess_use_database'] = FALSE;
60.$config['sess_table_name'] = 'ci_sessions';
61.$config['sess_match_ip'] = FALSE;
62.$config['sess_match_useragent'] = TRUE;
63.$config['sess_time_to_update'] = 300;
64.
65.
66.
67.
68.|-------------------------------------------------------------------------
-
69.| Global XSS Filtering
70.|-------------------------------------------------------------------------
-
71.
72.
73.$config['global_xss_filtering'] = FALSE;
74.
75.
76.
77.
78.|-------------------------------------------------------------------------
-
79.| Output Compression

80.|-------------------------------------------------------------------------
-
81.
82.
83.$config['compress_output'] = TRUE;
84.
85.
86.
87.
88.|-------------------------------------------------------------------------
-
89.| Rewrite PHP Short Tags
90.|-------------------------------------------------------------------------
-
91.
92.
93.$config['rewrite_short_tags'] = FALSE;
6.
i ii ii ii i ( CodeI gni t er Conf i gur e Tut or i al i n( CodeI gni t er Conf i gur e Tut or i al i n( CodeI gni t er Conf i gur e Tut or i al i n( CodeI gni t er Conf i gur e Tut or i al i n
: яoяoяoяo
e “config.php” i o database.php e i e e
।
01.$active_group = "default";
02.$active_record = TRUE;
03.
04.
05.$db['default']['hostname'] = "localhost";
06.$db['default']['username'] = "root";
07.$db['default']['password'] = "mypassword";
08.$db['default']['database'] = "mydatabase";
09.$db['default']['dbdriver'] = "mysql";
10.$db['default']['dbprefix'] = "";
11.$db['default']['pconnect'] = TRUE;
12.$db['default']['db_debug'] = TRUE;
13.$db['default']['cache_on'] = FALSE;
14.$db['default']['cachedir'] = "";
15.$db['default']['char_set'] = "utf8";
16.$db['default']['dbcollat'] = "utf8_general_ci";
e address bar e http://localhost/CodeIgniter/ en a i s ।

7.
i i e p e pi i e p e pi i e p e pi i e p e p ( Cr eat i ng Fi r st( Cr eat i ng Fi r st( Cr eat i ng Fi r st( Cr eat i ng Fi r st Appl i cat i on wi t hAppl i cat i on wi t hAppl i cat i on wi t hAppl i cat i on wi t h
CodeI gni t er )CodeI gni t er )CodeI gni t er )CodeI gni t er )
: яoяoяoяo
c ei u OOP e OOPHP e u e e
a яk a n p g e i i e a u o
, p ।
i i MVC Structure e t ,e o e p я
ei d я я ( a ),e p я ( n a )e я я ( u a
) i e e p e e p c ei e p
n e u e e я i i e o я i।
F:Program FilesxampphtdocsCodeIgnitersystemapplicationcontrollers ei e
helloworld.php i (F e я C ) ei i e ++ e
e class e
01.<?php
02.class HelloWorld extends Controller{
03.function HelloWorld(){
04.// load controller parent
05.parent::Controller();

06.}
07.function index(){
08.$data['title']='My first application created with Code Igniter';
09.$data['message']='Hello world!';
10.// load 'helloworld' view
11.$this->load->view('helloworld',$data);
12.}
13.}
14.?>
: n a e k e c k /p k / k k 'Controller'
ei 'Controller' k i i i e c k / n k ei n
k 'Controller' extends o k 'HellowWorld' p
(derived).
e parent::Controller() e function index() d ei c n k (Controller e) o
e index() ( ) p $data (a ) e d u
p ei n i m p 'helloworld.php'।কোডইগনাইটারে loader e k
, n e k i ei loader k a i l e i i ei
loader k u i я e
$this->load->view('helloworld',$data);
e u i e e pass b uя u i e
F:Program FilesxampphtdocsCodeIgnitersystemapplicationviews ei helloworld.php
e i i
1.<html>
2.<head>
3.<title><?php echo $title;?></title>
4.</head>
5.<body>
6.<h1><?php echo $message?></h1>
7.</body>
8.</html>
e Address bar e e en ।
http://localhost/CodeIgniter/index.php/helloworld
: Controller e Views folder e k welcome.php e welcome_message.php i
++ e a ।

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