Assignment 2 : Control Structures and Loops

Assignment 2 : Control Structures and Loops

Practice Programs:

1. Write a PHP Script to display a maximum of two numbers.

Answer :

<html> <div class="container-fluid"> <div class="col-10"> <form action="#" method="post"> <label for="">A : </label> <input type="text" name="a" class="include"> <label for="">B : </label> <input type="text" name="b" class="include"><br><br> <input type="submit" value="Submit" class="btn btn-primary"> <input type="reset" value="Reset" class="btn btn-danger"> </form> <?php if(isset($_POST['a'])){ $a = $_POST['a']; $b = $_POST['b']; if($a>$b){ echo " <div class='container'> <div class='alert alert-info shadow' > ".$a." is Greter than ".$b.". </div> </div>"; }else{ echo " <div class='container'> <div class='alert alert-info shadow' > ".$b." is Greter than ".$a.". </div> </div>"; } } ?> </div> </div> </html>

2. Write a PHP Script to check whether a number is positive or negative.

Answer :

3. Write a PHP Script to display a Multiplication table of a number

Answer :

SET A:

1. Write a PHP Script to check whether a year is a leap or not.

Answer :

2. Write a PHP Script which will perform the Addition, Subtraction, Multiplication, and Division of two numbers as per the choice. (Use Switch Case)

Answer :

<html> <div class="container-fluid"> <div class="col-10"> <form action="#" method="post"> <h4 class="text-center">arithmetic operations</h4> Enter Value of X : <input type="text" name="a" class="input"><br><br> Enter Value of Z : <input type="text" name="b" class="input"><br><br> <input type="radio" name=r value=1> Addition <br> <input type="radio" name=r value=2> Substraction <br> <input type="radio" name=r value=3> Multiplication <br> <input type="radio" name=r value=4> Division<br> <input type="submit" value=submit class="btn btn-outline-primary"> <input type="reset" value="Reset" class="btn btn-outline-secondary"> </form> <?php switch($_POST['r']){ case 1 : $c = $_POST['a'] + $_POST['b']; echo " <div class='container'> <div class='alert alert-info shadow' > Addition is : ". $c ." </div> </div>"; break; case 2 : $c = $_POST['a'] - $_POST['b']; echo " <div class='container'> <div class='alert alert-info shadow' > Substraction is : ". $c ." </div> </div>"; break; case 3 : $c = $_POST['a'] * $_POST['b']; echo " <div class='container'> <div class='alert alert-info shadow' > Multiplication is : ". $c ." </div> </div>"; break; case 4 : $c = $_POST['a'] / $_POST['b']; echo " <div class='container'> <div class='alert alert-info shadow' > Division is : ". $c ." </div> </div>"; break; } ?> </div> </div> </html>

3. Write a PHP Script to display the grade of the student according to percentage. Use the following conditions: Percentage <40 => Grade=”Fail” Percentage >= 40 and Percentage <=50 => Grade= “Pass Class” Percentage >=50 and Percentage <=60 => Grade= “Higher Second Class” Percentage >60 and Percentage <=70 => Grade= “First Class” Percentage >70 => Grade= “First Class with Distinction”

Answer :

<html> <div class="container-fluid"> <div class="col-10"> <form action="#" method="post"> <label for="">A : </label> <input type="text" name="a" class="include"> <input type="submit" value="Submit" class="btn btn-primary"> <input type="reset" value="Reset" class="btn btn-danger"> </form> <?php if(isset($_POST['a'])){ $Percentage = $_POST['a']; if($Percentage >70 ){ echo " <div class='container'> <div class='alert alert-info shadow' > First Class with Distinction </div> </div>"; } else if($Percentage >60 && $Percentage <=70 ){ echo " <div class='container'> <div class='alert alert-info shadow' > First Class </div> </div>"; } else if($Percentage >=50 && $Percentage <=60){ echo " <div class='container'> <div class='alert alert-info shadow' > Higher Second Class </div> </div>"; } else if($Percentage >= 40 && $Percentage <=50 ){ echo " <div class='container'> <div class='alert alert-info shadow' > Pass Class </div> </div>"; } else if($Percentage < 40 ){ echo " <div class='container'> <div class='alert alert-info shadow' > Fail </div> </div>"; } } ?> </div> </div> </html>

SET B:

1. Write a PHP Script to display prime numbers between 1 to 50. 6

Answer :

<?php $num = 1 ; while ($num < 50 ) { $count=0; for ( $i=1;$i<=$num;$i++) { if (($num%$i)==0) { $count++; } } if ($count<3) { echo $num ." "; } $num=$num+1; } ?>

2. Write a PHP Script to display a perfect numbers between 1 to100.

Answer :

<?php for($i=1; $i<=50; $i++){ $n=1; $sum = 0; while($n<$i){ if($i%$n==0) $sum=$sum+$n; $n++; } if($sum==$i) echo $i . " "; } ?>

3. Write a PHP Script to display the reverse of a number. E.g. 607 =>706

Answer :

4. Write a PHP Script to display Armstrong numbers between 1 to 500.

Answer :

<?php for($i = 1; $i <= 500; $i++) { $sum = 0; $n = $i; while($n != 0) { $rem = $n % 10; $a = $rem * $rem * $rem; $sum += $a; $n = $n / 10; } if ($sum == $i) { echo $i . " "; } } ?>

SET C:

1. Write a PHP script to display a number in words (Use Switch case) e.g. 345–three four five

Answer :

<html> <div class="container-fluid"> <div class="col-10"> <form action="#" method="post"> <label for="">Enter Number : </label> <input type="text" name="a" class="include"> <input type="submit" value="Submit" class="btn btn-primary"> <input type="reset" value="Reset" class="btn btn-danger"> </form> <?php if(isset($_POST['a'])){ $a = $_POST['a']; switch($a){ case 1 : echo "one"; break; case 2 : echo "Two"; break; case 3 : echo "Three"; break; case 4 : echo "four"; break; case 5 : echo "five"; break; default: echo "wrong Option"; } } ?> </div> </div> </html>

2. Write a PHP script to change the background color of the browser using a switch statement according to the day of the week.

Answer :

<?php if(isset($_POST['submit'])){ $a = $_POST['a']; switch($a){ case 'Sunday' : $bg_color="Red"; break; case 'Monday' : $bg_color="Pink"; break; case 'Tuesday' : $bg_color="Orange"; break; case 'Thursday' : $bg_color="Yellow"; break; case 'Friday' : $bg_color="Purple"; break; case 'Saturday' : $bg_color="Green"; break; default : $bg_color="white"; } } ?> <html style='background-color:<?php echo $bg_color ?>'> <form action="#" method="post"> <label for="">Enter Day : </label> <input type="text" name="a" class="include"> <input type="submit" value="Submit" name='submit'> <input type="reset" value="Reset"> </form> </html>

3. Write a PHP script to count the total number of even and odd numbers between 1 to 1000.

Answer :

<?php $j=0; $a=0; for($i=0; $i<=1000; $i++){ if($i%2==0){ $j++; } if($i%2!=0){ $a++; } } echo "Odd Numbers : " . $a . "<br>"; echo "Even Numbers : " . $j; ?>

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Assignment 2 : Control Structures and Loops

1. Write a PHP Script to display a maximum of two numbers.

2. Write a PHP Script to check whether a number is positive or negative.

3. Write a PHP Script to display a Multiplication table of a number

1. Write a PHP Script to check whether a year is a leap or not.

2. Write a PHP Script which will perform the Addition, Subtraction, Multiplication, and Division of two numbers as per the choice. (Use Switch Case)

1. Write a PHP Script to display prime numbers between 1 to 50. 6

2. Write a PHP Script to display a perfect numbers between 1 to100.

3. Write a PHP Script to display the reverse of a number. E.g. 607 =>706

4. Write a PHP Script to display Armstrong numbers between 1 to 500.

1. Write a PHP script to display a number in words (Use Switch case) e.g. 345–three four five

2. Write a PHP script to change the background color of the browser using a switch statement according to the day of the week.

3. Write a PHP script to count the total number of even and odd numbers between 1 to 1000.

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