PHP Top Exercises

List of Top PHP Exercise & Assignment for Students. These best & popular exercises help you to understand different logics of PHP Programming. Practice Exercises for PHP Loops, Arrays, Functions, Decision Making, File Handling, Forms & Database Handling.

Write a factorial program using for loop in php

Description:

Write a program to calculate factorial of a number using for loop in php.

<?php
$num = 3;
$factorial = 1;
 
for ($x=$num; $x>=1; $x--)
{
    $factorial = $factorial * $x;
}
 
echo "The factorial of $num is $factorial";
?>
Tutorials Class - Output Window

The factorial of 3 is 6

Write a program to create Chess board in PHP using for loop

Description:

Write a PHP program using nested for loop that creates a chess board.

Conditions:

  • You can use html table having width=”400px” and take “30px” as cell height and width for check boxes.

View Solution/Program

<table width="400px" cellspacing="0px" cellpadding="0px" border="1px">
<?php  
for($row=1;$row<=8;$row++)  
{  
	echo "<tr>";  
	for($column=1;$column<=8;$column++)  
	{
		$total=$row+$column;
		if($total%2==0)
		{  
			echo "<td height=35px width=30px bgcolor=#FFFFFF></td>";  
		}  
		else  
		{  
			echo "<td height=35px width=30px bgcolor=#000000></td>";  
		}  
	}  
	echo "</tr>";  
}  
?>  
</table>
Tutorials Class - Output Window

Chess-board-in-PHP-using-for-loop

Write a program to calculate Electricity bill in PHP

Description:

You need to write a PHP program to calculate electricity bill using if-else conditions.

Conditions:

  • For first 50 units – Rs. 3.50/unit
  • For next 100 units – Rs. 4.00/unit
  • For next 100 units – Rs. 5.20/unit
  • For units above 250 – Rs. 6.50/unit
  • You can use conditional statements.

View Solution/Program

<!DOCTYPE html>
 
<head>
	<title>PHP - Calculate Electricity Bill</title>
</head>
 
<?php
$result_str = $result = '';
if (isset($_POST['unit-submit'])) {
    $units = $_POST['units'];
    if (!empty($units)) {
        $result = calculate_bill($units);
        $result_str = 'Total amount of ' . $units . ' - ' . $result;
    }
}
/**
 * To calculate electricity bill as per unit cost
 */
function calculate_bill($units) {
    $unit_cost_first = 3.50;
    $unit_cost_second = 4.00;
    $unit_cost_third = 5.20;
    $unit_cost_fourth = 6.50;
 
    if($units <= 50) {
        $bill = $units * $unit_cost_first;
    }
    else if($units > 50 && $units <= 100) {
        $temp = 50 * $unit_cost_first;
        $remaining_units = $units - 50;
        $bill = $temp + ($remaining_units * $unit_cost_second);
    }
    else if($units > 100 && $units <= 200) {
        $temp = (50 * 3.5) + (100 * $unit_cost_second);
        $remaining_units = $units - 150;
        $bill = $temp + ($remaining_units * $unit_cost_third);
    }
    else {
        $temp = (50 * 3.5) + (100 * $unit_cost_second) + (100 * $unit_cost_third);
        $remaining_units = $units - 250;
        $bill = $temp + ($remaining_units * $unit_cost_fourth);
    }
    return number_format((float)$bill, 2, '.', '');
}
 
?>
 
<body>
	<div id="page-wrap">
		<h1>Php - Calculate Electricity Bill</h1>
		
		<form action="" method="post" id="quiz-form">            
            	<input type="number" name="units" id="units" placeholder="Please enter no. of Units" />            
            	<input type="submit" name="unit-submit" id="unit-submit" value="Submit" />		
		</form>
 
		<div>
		    <?php echo '<br />' . $result_str; ?>
		</div>	
	</div>
</body>
</html>
Tutorials Class - Output Window

Write a simple calculator program in PHP using switch case

Description:

You need to write a simple calculator program in PHP using switch case.

Operations:

  • Addition
  • Subtraction
  • Multiplication
  • Division

View Solution/Program

<!DOCTYPE html>
 
<head>
	<title>Simple Calculator Program in PHP - Tutorials Class</title>
</head>
 
<?php
$first_num = $_POST['first_num'];
$second_num = $_POST['second_num'];
$operator = $_POST['operator'];
$result = '';
if (is_numeric($first_num) && is_numeric($second_num)) {
    switch ($operator) {
        case "Add":
           $result = $first_num + $second_num;
            break;
        case "Subtract":
           $result = $first_num - $second_num;
            break;
        case "Multiply":
            $result = $first_num * $second_num;
            break;
        case "Divide":
            $result = $first_num / $second_num;
    }
}
 
?>
 
<body>
    <div id="page-wrap">
	<h1>PHP - Simple Calculator Program</h1>
	  <form action="" method="post" id="quiz-form">
            <p>
                <input type="number" name="first_num" id="first_num" required="required" value="<?php echo $first_num; ?>" /> <b>First Number</b>
            </p>
            <p>
                <input type="number" name="second_num" id="second_num" required="required" value="<?php echo $second_num; ?>" /> <b>Second Number</b>
            </p>
            <p>
                <input readonly="readonly" name="result" value="<?php echo $result; ?>"> <b>Result</b>
            </p>
            <input type="submit" name="operator" value="Add" />
            <input type="submit" name="operator" value="Subtract" />
            <input type="submit" name="operator" value="Multiply" />
            <input type="submit" name="operator" value="Divide" />
	  </form>
    </div>
</body>
</html>
Tutorials Class - Output Window

simple-calculator-program-in-PHP-using-switch-case

Write a PHP program to check if a person is eligible to vote

Description:

Write a PHP program to check if a person is eligible to vote or not.

Condition
Click to View Solution/Program.
<?php
function check_vote() //function has been declared
{
    $name = "Rakesh";
    $age = 19;
    if ($age >= 18) {
        echo $name . ", you Are Eligible For Vote";
    } else {
        echo $name . ", you are not eligible for vote. ";
    }
}
check_vote(); //function has been called
 
?>
Tutorials Class - Output Window

You Are Eligible For Vote


Write a PHP program to check whether a number is positive, negative or zero

Description:

Write a PHP program to check whether a number is positive, negative or zero.

Instructions:

  • You can use if else conditions.
  • You should use appropriate PHP Operators.
  • Also check if it not a numeric value.

View Solution/Program

<?php
$number = 324; // enter any number of your choice here
if ($number > 0) // condition for positive numbers
{
    echo $number . " is a positive number";
} else if ($number < 0) // condition for negative number
{
    echo $number . " is a negative number ";
} else if ($number == 0) // condition for zero
{
    echo "You have entered zero";
} else {
    echo " please enter a numeric value";
}
?>
Tutorials Class - Output Window

324 is a positive number