PHP Quiz

Welcome to the PHP Quiz on The Coding College! Test your knowledge of PHP with this interactive quiz. Whether you’re a beginner or looking to sharpen your skills, these questions will help you review key concepts in PHP programming.

PHP Quiz Rules

  • Each question has one correct answer.
  • Answer honestly to test your knowledge.
  • At the end, review the answers and explanations to improve your understanding of PHP.

PHP Quiz Questions

1. What does PHP stand for?

a) Private Home Page
b) PHP: Hypertext Preprocessor
c) Personal Hypertext Processor
d) Public Hosting Platform

2. Which symbol is used to start a PHP variable?

a) $
b) #
c) @
d) &

3. How do you write a comment in PHP?

a) // This is a comment
b) <!-- This is a comment -->
c) ** This is a comment **
d) /* This is a comment */

4. What will the following code output?

<?php
echo "5" + 10;
?>

a) 15
b) 510
c) Error
d) 5

5. Which function is used to display text in PHP?

a) print()
b) echo()
c) Both a and b
d) display()

6. How can you get data from a form submitted using the POST method?

a) $_POST[]
b) $_GET[]
c) $_REQUEST[]
d) $_SERVER[]

7. What is the correct way to end a PHP statement?

a) :
b) .
c) ;
d) ,

8. Which function is used to connect to a MySQL database in PHP?

a) mysqli_connect()
b) connect_db()
c) mysql_connect()
d) db_connect()

9. What will the following code output?

<?php
$colors = ["Red", "Green", "Blue"];
echo $colors[1];
?>

a) Red
b) Green
c) Blue
d) Error

10. How do you define a constant in PHP?

a) define("NAME", "value");
b) constant("NAME", "value");
c) const NAME = "value";
d) Both a and c

Answers and Explanations

  1. b) PHP: Hypertext Preprocessor
    PHP is a recursive acronym for “PHP: Hypertext Preprocessor.”
  2. a) $
    All PHP variables start with the $ symbol.
  3. d) /* This is a comment */
    PHP supports single-line (//) and multi-line comments (/* */).
  4. a) 15
    PHP automatically converts the string “5” to an integer and performs addition.
  5. c) Both a and b
    Both echo and print can be used to output text in PHP.
  6. a) $_POST[]
    The $_POST superglobal is used to collect data from forms submitted using the POST method.
  7. c) ;
    Each PHP statement must end with a semicolon (;).
  8. a) mysqli_connect()
    The mysqli_connect() function is used to connect to MySQL databases in PHP.
  9. b) Green
    Arrays in PHP are zero-indexed. $colors[1] refers to the second element, “Green.”
  10. d) Both a and c
    Constants can be defined using either the define() function or the const keyword.

Quiz Results

  • 0-3 Correct: Keep practicing! Go through our PHP tutorials to build a strong foundation.
  • 4-7 Correct: Good effort! Review the explanations and practice more PHP examples.
  • 8-10 Correct: Excellent! You have a solid understanding of PHP concepts.

Next Steps

  • Build Projects: Try creating a simple PHP project like a To-Do List App or a User Registration Form.
  • Learn Advanced Topics: Dive into PHP OOP, MySQL integration, and AJAX to level up your skills.

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