practice questions on PHP Basics

🧾 PHP Basics – Practice Questions

🔹 Level 1: Beginner

1️⃣ Create variables for:

Your name
Your age
Your city
Then print them using echo.

2️⃣ Create two numbers and:

Add them
Subtract them
Multiply them

3️⃣ Write a PHP script to:

Store a string "Welcome to PHP"
Print it using both echo and print

4️⃣ Create a constant named SITE_URL and assign your website URL. Then print it.

5️⃣ Identify the data type of these variables using var_dump():

$a = 100;
$b = "Hello";
$c = 10.5;
$d = true;

🔹 Level 2: Intermediate

6️⃣ Compare two variables:

$a = 10;
$b = "10";

Check using == and ===
Explain the output

7️⃣ Write a program to check:

If a number is greater than 50 or not (use comparison + echo result)

8️⃣ Use logical operators:

Create two variables $x = true, $y = false
Test AND, OR, NOT

9️⃣ Create a calculator using variables:

Perform all arithmetic operations (+, -, *, /, %)

🔟 Write a PHP script with:

Single-line comment
Multi-line comment
Explain what your code does

🔹 Level 3: Challenge

1️⃣1️⃣ Create 3 variables:

Name (string)
Marks (integer)
Pass status (boolean)

Print all values with proper labels.

1️⃣2️⃣ Swap two variables without using a third variable

$a = 5;
$b = 10;

1️⃣3️⃣ Check if a number is even or odd using %

1️⃣4️⃣ Create a simple bill:

Product price = 100
GST = 18%
Calculate total price

1️⃣5️⃣ Write a script that:

Uses all operators (arithmetic + comparison + logical) in one example

🚀 Bonus (Important for Interviews)

👉 What will be the output?

$x = 5;
echo $x++;
echo ++$x;

💡 Tip

Try to run these on your server (XAMPP / localhost)

🇮🇳 Amazon India 🌍 Amazon Global

practice questions on PHP Basics