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
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
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