Class-1 PHP Practis

<?php

// Variable, string, integer, float.
echo'<h3> Variable, string, integer, float. </h3>';

$Name = 'Md. Anwar Hossen';
$age = 34;
$balance =1.5;
$br = '<br>';

echo $Name .$br. $age .$br. $balance;



// Using Arithmetic Operator
echo'<h1> Using Arithmetic Operator. </h1>';


$apple = 102;
$orange = 34;

$addition = $apple + $orange;
$subtraction = $apple - $orange;
$multiplication = $apple * $orange;
$division = $apple/$orange;
$modulus = $apple%$orange;


echo'<h3> 1. Addition 102 & 34. </h3>';
echo $addition.'</br>';

echo'<h3> 2. Subtraction 102 & 34. </h3>';
echo $subtraction.'</br>';

echo'<h3> 3. Multiplacation 102 & 34. </h3>';
echo $multiplication.'</br>';

echo'<h3> 4. Division 102 & 34. </h3>';
echo $division.'</br>';

echo'<h3> 5. Modulus 102 & 34. </h3>';
echo $modulus.'</br>';



// Using Assignment Operator
echo'<h1> Using Assignment Operator (=, +=, -=, *=, /=). </h1>';

$age = 30;

echo'<h3> 1. Adding age 5 year with previous age 30. </h3>';
echo $age += 5; echo '</br>';

echo'<h3> 2. Subtraction age 5 year from previous age 35. </h3>';
echo $age -= 5; echo '</br>';

echo'<h3> 3. Multiplication age 5 year from previous age 30. </h3>';
echo $age *= 5; echo '</br>';

echo'<h3> 4. Division age with 5 year to previous age 150. </h3>';
echo $age /= 5; echo '</br>';



// Logical Operator
echo'<h1> Logical Operator ( ||, &&, !). </h1>';


$username = 'anwar';
$password = 'anwar123';

if($username == 'anwar' && $password == 'anwar12' ){
	echo '<h2>Welcome to our website </h2>';
}

else{
	echo '<h2> User name or password wrong</h2>';
}



// Comparison Operator
echo'<h1> Comparison Operator ( ==, !=, <, >, <=, >=, <>). </h1>';




$Nazrul = 70;
$Rabindra = 105;

//one
if($Nazrul == $Rabindra ){
	echo '<h2>There age is equel</h2>';
}

else{
	echo '<h2> There age is not equel</h2>';
}


//two
if($Nazrul > $Rabindra ){
	echo '<h2>Nazrul is elder then Rabindra</h2>';
}

else{
	echo '<h2> Nazrul is younger then Rabindra</h2>';
}


// three
if($Nazrul != $Rabindra ){
	echo '<h2>There age is not equel</h2>';
}

else{
	echo '<h2> There age is equel</h2>';
}


// Index Array
echo'<h1> Index Array </h1>';


$subject = array('English', 'Math', 'Bangla', 'Biology',);

print_r ($subject);

echo '</br>'. '</br>';

echo $subject[0] .'</br>'. '</br>';
echo $subject[1] .'</br>'. '</br>';
echo $subject[2] .'</br>'. '</br>';
echo $subject[3] .'</br>'. '</br>';


// Associative Array
echo'<h1> Associative Array </h1>';


$student = array('Rahim'=>15, 'Karim'=>17, 'Jabbar'=>18, 'Barkat'=>21,);

print_r ($student);

echo '</br>'. '</br>';

echo 'The age of Rahim is = '. $student['Rahim']. ' years' .'</br>'. '</br>';
echo 'The age of Karim is = '. $student['Karim']. ' years' .'</br>'. '</br>';
echo 'The age of Jabbar is = '. $student['Jabbar']. ' years' .'</br>'. '</br>';
echo 'The age of Barkat is = '. $student['Barkat']. ' years' .'</br>'. '</br>';




// Multidimentional Array
echo'<h1> Multidimentional Array </h1>';


$student = array(
	'Rahim'=>array(
		'roll'=>1,
		'group'=>'Science',
		'age'=>20,
	),

	'Karim'=>array(
		'roll'=>2,
		'group'=>'Arts',
		'age'=>21,
	),

	'Jabbar'=>array(
		'roll'=>3,
		'group'=>'Commerce',
		'age'=>22,
	),

);

echo '<pre>';
print_r ($student);

echo '</br>'. '</br>';

// ==========Rahim Details=====================
echo '<h3>Name of Student : Rahim</h3> ';

echo '<ol>';
	echo '<li>Roll : '. $student['Rahim']['roll']. '</li>';
	echo '<li>Group : '. $student['Rahim']['group']. '</li>';
	echo '<li>Age : '. $student['Rahim']['age']. '</li>';
echo '</ol>';



// ==============Karim Details==============
echo '<h3>Name of Student : Karim</h3> ';

echo '<ol>';
	echo '<li>Roll : '. $student['Karim']['roll']. '</li>';
	echo '<li>Group : '. $student['Karim']['group']. '</li>';
	echo '<li>Age : '. $student['Karim']['age']. '</li>';
echo '</ol>';

// ============Jabbar Details=================
echo '<h3>Name of Student : Jabbar</h3> ';

echo '<ol>';
	echo '<li>Roll : '. $student['Jabbar']['roll']. '</li>';
	echo '<li>Group : '. $student['Jabbar']['group']. '</li>';
	echo '<li>Age : '. $student['Jabbar']['age']. '</li>';
echo '</ol>';



// For loop increament
echo'<h1> For loop increament </h1>';

for($i=1; $i<=20; $i++){
	echo $i. ', ';

}


// For loop decreament
echo'<h1> For loop decreament </h1>';

for($i=20; $i>=1; $i--){
	echo $i. ', ';

}



// For loop even number
echo'<h1> For loop even number </h1>';

for($i=2; $i<=20; $i+=2){
	echo $i. ', ';

}



// For loop odd number
echo'<h1> For loop odd number </h1>';

for($i=1; $i<=20; $i+=2){
	echo $i. ', ';

}



// While loop
echo'<h1> while loop </h1>';

$i=1;

while( $i<=20 ){
	echo $i. ', ';
	$i++;
}


// Foreach loop
echo'<h1> Foreach loop </h1>';


$father = array('Rahim'=>30, 'Karim'=>40, 'Jabbar'=>45);

foreach($father as $sons=>$age){

	echo $sons. ' is '. $age. ' years old. <br>';
}