Manual includes vs autoloading in PHP - Quick Revision & Key Differences

Recall & Review

beginner

What is a manual include in PHP?

A manual include is when you explicitly write code to load a PHP file using statements like include or require. You tell PHP exactly which file to load and when.

beginner

What does autoloading do in PHP?

Autoloading automatically loads PHP classes when they are needed, without you writing <code>include</code> or <code>require</code> for each file. PHP calls a special function to find and load the class file on demand.

intermediate

Name one advantage of autoloading over manual includes.

Autoloading reduces the need to write many include or require statements, making code cleaner and easier to maintain. It loads files only when needed, improving performance.

intermediate

What PHP function is commonly used to register an autoloader?

The function spl_autoload_register() is used to register one or more autoload functions that PHP calls automatically to load classes.

beginner

What happens if a manual include file is missing?

If you use require and the file is missing, PHP stops the script with a fatal error. If you use include, PHP shows a warning but continues running the script.

Which PHP statement is used for manual file inclusion?

A include

B autoload

C register

D loadfile

The include statement is used to manually include PHP files.

What does spl_autoload_register() do?

A Stops script execution

B Includes a file manually

C Registers a function to autoload classes automatically

D Starts a PHP session

It registers a function that PHP calls to load classes automatically when needed.

Which is a benefit of autoloading over manual includes?

A Slows down the script

B Loads files only when classes are used

C Requires writing more include statements

D Needs manual file path management

Autoloading loads files only when the class is actually used, improving efficiency.

What happens if a required file is missing in manual include?

A Script stops with a fatal error

B Script continues silently

C PHP autoloads the file

D PHP ignores the error

Using require causes a fatal error if the file is missing, stopping the script.

Which PHP feature helps avoid writing many include statements?

A Cookies

B Manual includes

C Sessions

D Autoloading

Autoloading automatically loads class files, reducing the need for manual includes.

Explain the difference between manual includes and autoloading in PHP.

Think about how files are loaded and when.

Describe one advantage and one disadvantage of manual includes compared to autoloading.

Consider ease of use and maintenance.