PHP-ASSIGNMENT NO.2

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PRACTICE PROGRAM :-

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

ANS:

HTML CODE:

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <meta http-equiv="X-UA-Compatible" content="IE=edge">

    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <title>Document</title>

</head>

<body>

    <form action="Q1.php">

        <h1>finding maximum of two number!</h1>

        Enter first number: <input type="text" name="first" ><br>

        <br>

        Enter second number: <input type="text" name="second"><br>

        <br>

        <button>max is!</button>


    </form>

</body>

</html>

PHP SCRIPT:

<?php


    $n1 = $_GET["first"];

    $n2 = $_GET["second"];


    if ($n1>$n2) {

        echo("\n $n1 is greater than $n2!");

    } else {

        echo("\n $n2 is greater than $n1!");

    }

?>

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2. Write a PHP Script to check whether a number is positive or negative.
ANS:
HTML CODE:
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h1>check number is positive or negative!</h1>
    <form action="Q2.php">
        Enter a number: <input type="text" name="num"><br>
        <br>
        <button>click to check!</button>
    </form>
</body>
</html>
PHP CODE:
<?php
    
     $n = $_GET["num"];

     if ($n>0) {
        echo("\n the $n is positive number!");
     } else {
        echo("\n the $n is negative number!");
     }
?>
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3. Write a PHP Script to display a Multiplication table of a number.
ANS:
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <h1>making multiplication table of given number!</h1>
    <form action="Q3.php">
        Enter a number: <input type="text" name="num"><br>
        <br>
        <button>click to display!</button>
    </form>
</body>

</html>
PHP CODE:
<?php
    $n = $_GET["num"];
    $i=1;
    while ($i<=10) {
        $t=$n*$i;
        echo("$t"."<br>");
        $i++;
    }
?>
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SET A:-
1. Write a PHP Script to check whether a year is a leap or not.
ANS:
HTML CODE AND PHP CODE:
<html>
    <body>
        <form action="Q1.php" method="post">
            Enter a year:<input type="text" name="ye"><br>
            <button>click me!</button>
        </form>
    </body>
</html>
<?php
if ($_SERVER["REQUEST_METHOD"]=="POST") {
    

    $y=$_POST['ye'];
    if ($y%4==0) {
        echo"$y is a leap year!";
    }
    else {
        echo"$y is not leap year!";
    }
}
?>
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2. Write a PHP Script which will perform the Addition, Subtraction, Multiplication, and Division of two numbers as per the choice. (Use Switch Case) 
ANS:
HTML AND PHP CODE:
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
 
</head>
<body>
    <div class="main">
    <form action="Q2.php" method="post">
        <u>Enter first number</u>: <input type="text" name="first" ><br>
        <br>
        <u>Enter second number</u>: <input type="text" name="second"><br>
        <br>
        <b>choice</b>: <select name="selection">
            <option value="1">Addition</option>
            <option value="2">Subtraction</option>
            <option value="3">Multiplication</option>
            <option value="4">Division</option>
        </select><br>
        <br>
        <button>click to calculate!</button><br>
        <br>
    </form>
</div>
</body>
</html>
<?php
   if ($_SERVER["REQUEST_METHOD"]=="POST") {
    
        $a=$_POST["first"];
        $b=$_POST["second"];
        $c=$_POST["selection"];
        $ans;
        switch ($c) {
            case '1':
                 $ans=$a+$b;
                 echo "Addition of $a and $b = $ans";
                break;
            case '2':
                $ans=$a-$b;
                echo"Subtraction of $a and $b = $ans";
                break;
            case '3':
                $ans=$a*$b;
                echo"Multiplication of $a and $b = $ans";
                break;
            case '4':
                $ans=$a/$b;
                echo"Division of $a and $b = $ans";
                break;
            default:
                echo"NO one choice selected!";
                break;
        }
   }
?>
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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”.
ANS:
HTML AND PHP CODE:
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <form action="Q3.php" method="get">
        <u>Enter percentage</u>: <input type="text" name="per"><br>
        <br>
       
        <input type="submit" name="submit">
    </form>
    <?php
    $g="";
   if ($_SERVER["REQUEST_METHOD"]=="GET") {
    if (isset($_GET['submit'])) {
        $per=$_GET["per"];
        
        if ($per>70&&$per<=100) {
            $g="A+";   
        }elseif ($per>60&&$per<=70) {
            $g="A";
        }elseif ($per>=50&&$per<=60) {
            $g="B";
        }
        elseif ($per>=40&&$per<=50) {
            $g="C";
        }
        elseif ($per<40) {
            $g="F";
        }
        else{
            $g="percentage<=100";
        }
    }
   }
   ?>
    <u>Grade is</u>: <input type="text" name="grade" value="<?php echo$g;?>"><br>
        <br>
</body>
</html>
-----------------------------------------------------------------------------------------------------------------------------
SET B:
1. Write a PHP Script to display prime numbers between 1 to 50.
ANS:
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h1>Enter range to display prime numbers!</h1>
    <form action="Q1.php" method="POST">
        Enter starting of range: <input type="text" name="s">
        <br>
        Enter End of range: <input type="text" name="E" ><br>
        <br>
        <button>click</button>
    </form>
</body>
</html>
<?php
if ($_SERVER["REQUEST_METHOD"]=="POST") {
    

    $start= $_POST["s"];
    $end=$_POST["E"];

    for ($i=$start; $i <= $end ; $i++) { 
         $flag=0;
        for ($j=2; $j < $i ; $j++) { 
            if ((int)$i%$j==0) {
                $flag=1;
                break;
            }
        }
        if ($flag==0) {
             echo$i."<br>";
        }
    }
}
?>
-----------------------------------------------------------------------------------------------------------------------------
2. Write a PHP Script to display a perfect numbers between 1 to100.
ANS:
PHP CODE:
<?php
   echo"<h1>This program to print perfect numbers between 1 to 100!</h1>";
    $s=0;
    for ($i=1; $i < 100; $i++) { 
        $j=1;
        while ($j < $i) {
              if ($i%$j==0) {
                  $s=$s+$j;
              }
              $j++;
        }
        if ($s==$i) {
            echo"<strong><big>$i</big></strong>"."<br>";
        }
        $s=0;
    }

?>
-----------------------------------------------------------------------------------------------------------------------------
3. Write a PHP Script to display the reverse of a number. E.g. 607 =>706.
ANS:
HTML CODE:
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <h1>Give a number for reverse!</h1>
    <form action="Q3.php">
        Enter a number: <input type="text" name="num"><br>
        <br>
        <button>click to reverse</button>


    </form>
</body>

</html>
PHP CODE:
<?php

    $n = $_GET["num"];
    $rev=0;
    $temp = $n;
    while ((int)$n>0) {
        $d = $n%10;   
        $rev =($rev*10)+$d;
        $n=$n/10;
    }
  
    echo("the reverse of $temp is ".$rev);
?>
-----------------------------------------------------------------------------------------------------------------------------
SET C:
1. Write a PHP script to display a number in words (Use Switch case) e.g. 345–three four five.
ANS:
HTML AND PHP CODE:
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h2>PHP script to convert number into word!</h2>
    <form action="Q1.php" method="post">
        <b>Enter a number:</b><input type="number" name="num"><br>
        <br>
        <button type="submit">click</button>
    </form>
</body>
</html>
<?php
    if ($_SERVER["REQUEST_METHOD"]=="POST") {
        $n=$_POST["num"];
        $rev=0;
        while ((int)$n>0) {
            $d=$n%10;
            $rev=$rev*10+$d;
            $n=$n/10;
        }
        while ((int)$rev>0) {
            $d=$rev%10;
            switch ((int)$d) {
                case '0':
                    echo"\tZERO";
                    break;
                case '1':
                    echo"\tONE";
                    break;
                case '2':
                    echo"\tTWO";
                    break;
                case '3':
                    echo"\tTHREE";
                    break;
                case '4':
                    echo"\tFOUR";
                    break; 
                case '5':
                    echo"\tFIVE";
                    break;
                case '6':
                    echo"\tSIX";
                    break; 
                case '7':
                    echo"\tSEVEN";
                    break; 
                case '8':
                    echo"\tEIGHT";
                    break;
                case '9':
                    echo"\tNINE";
                    break; 
                default:
                    echo"wrong input!";
                    break;
            }
            $rev=(int)$rev/10;
        }
    }


?>
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2. Write a PHP script to change the background color of the browser using a switch statement according to the day of the week.
ANS:
HTML AND PHP CODE: 
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h1>Change browser window color according to day of week!</h1>
    <form action="Q2.php" method="post">
        Enter A day of week: <select name="option">
            <option value="1">Monday</option>
            <option value="2">tuesday</option>
            <option value="3">wednesday</option>
            <option value="4">thursday</option>
            <option value="5">friday</option>
            <option value="6">saturday</option>
            <option value="7">sunday</option>
        </select>
        <br>
        <button>click</button>
    </form>
</body>
</html>
<?php
  if($_SERVER["REQUEST_METHOD"]=="POST"){
      $d=$_POST["option"];
      switch ($d) {
        case '1':
            echo"<body style='background-color:red'>";
            break;
        case '2':
            echo"<body style='background-color:blue'>";
            break;
        case '3':
            echo"<body style='background-color:green'>";
            break;
        case '4':
            echo"<body style='background-color:pink'>";
            break;
        case '5':
            echo"<body style='background-color:orange'>";
            break;
        case '6':
             echo"<body style='background-color:skyblue'>";
            break;
        case '7':
             echo"<body style='background-color:purple'>";
            break;
        default:
            echo"wrong input!";
            break;
      }
    }
?>
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3. Write a PHP script to count the total number of even and odd numbers between 1 to 1000.
ANS:
HTML AND PHP CODE:  
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h1>program to count even and odd numbers between given range</h1>
    <form action="Q3.php" method="post">
        <u>Enter start:</u><input type="text" name="start"><br>
        <br>
        <u>Enter End:</u><input type="text" name="End">
        <br>
        <button>click</button>
    </form>
</body>
</html>
<?php
   if ($_SERVER["REQUEST_METHOD"]=="POST") {
        $s=$_POST["start"];
        $e=$_POST["End"];
        $o_count=0;
        $e_count=0;
        for ($i=$s; $i <= $e; $i++) { 
            if ($i%2==0) {
                $e_count++;
            }
            else {
                $o_count++;
            }
        }
        echo"total even numbers between $s to $e are <strong>$e_count</strong>"."<br>";
        echo"total odd numbers between $s to $e are <strong>$o_count</strong>"."<br>";
   }



?>
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