Programming

PHP Fundamentals - Programming

This PHP Fundamentals test evaluates your foundational understanding of PHP programming essentials.

Duration

Complete at your own pace or within the time limit

Questions

Multiple choice with one correct answer

Accuracy

Expert-reviewed questions with clear answer keys

Results

Instant detailed breakdown by topic area

PHP Fundamentals
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About This Test

This assessment evaluates your grasp of core PHP fundamentals and basic programming concepts.

This test measures your understanding of PHP basics including syntax, variables, data types, and basic operations. It establishes your foundation for advanced PHP learning.

Questions progress from simple syntax recognition to basic problem-solving with fundamental concepts. Items include code analysis and simple implementation tasks.

Use your results to confirm your readiness for intermediate PHP topics. Review explanations to solidify foundational concepts before advancing.

What This PHP Fundamentals Test Covers

Variables and Types

PHP dynamic typing, the main scalar and compound types, type juggling, and the difference between loose and strict comparisons.

Arrays and Associative Arrays

Indexed and associative arrays, the many built-in array functions, and how arrays serve as PHP primary data structure.

Strings and Superglobals

String functions and interpolation, plus superglobals like GET, POST, and SERVER that carry request data into scripts.

Functions and Control Flow

Defining functions, default and typed parameters, loops and conditionals, and how include and require compose scripts.

Sample Questions

A few real questions from this test, with answers and explanations. Take the full test above for the complete set.

How do you declare a variable named count in PHP?

Answer: $count = 0;

All PHP variables begin with a dollar sign, so $count is the correct form. PHP is dynamically typed, so no type keyword is used in the declaration.

What does the expression 0 == "a" evaluate to in PHP 8?

Answer: false

In PHP 8 the loose comparison rules changed: comparing a number to a non-numeric string compares them as strings, so 0 == "a" is false. In PHP 7 it was true.

How do you create an associative array mapping "name" to "Ada" in PHP?

Answer: $a = ["name" => "Ada"];

PHP associative arrays use the => operator to bind a key to a value, written as ["name" => "Ada"]. Curly-brace object literals are not valid PHP array syntax.

What is the difference between == and === in PHP?

Answer: == compares value with type juggling, === compares value and type

The == operator performs loose comparison with type juggling, while === (identity) requires both value and type to match without any conversion.

Which operator concatenates two strings in PHP?

Answer: .

PHP uses the dot operator (.) for string concatenation. The + operator is arithmetic and would attempt numeric conversion instead.

Frequently Asked Questions

Find answers to common questions about this assessment

Double equals compares values after type juggling, so it may convert types before comparing, which leads to surprising results. Triple equals compares both value and type without conversion. Prefer triple equals in most cases to avoid subtle bugs from implicit conversion.

Superglobals are built-in arrays available in every scope without declaration, including GET and POST for request data, SESSION for session storage, and SERVER for environment information. They are the primary way a PHP script receives input from the web request.

PHP arrays are ordered maps that can use string or integer keys, so a single array type serves as list, dictionary, and record. Combined with a large library of array functions, they become the default structure for most data manipulation in PHP code.

Type juggling is PHP automatic conversion of values between types depending on context, such as treating a numeric string as a number in arithmetic. It is convenient but can cause unexpected comparisons, which is why strict comparison and explicit casts are often safer.

Scores are based on the number of correct answers divided by total questions, with a breakdown by topic category.

Yes, questions are randomly selected and ordered from our question bank to ensure each attempt is unique.

No account is required. You can take the test immediately. Optionally provide an email to save your results.

There is no pass/fail threshold. The test measures your knowledge level and provides detailed feedback for improvement.

For knowledge tests, we recommend answering without external help to get an accurate assessment. Practice exercises are designed for learning, so references are acceptable.

Our questions are written for structured educational practice and can give a useful snapshot of your current knowledge in the tested topics.

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