Error vs Exception in PHP - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to throw an exception in PHP.

PHP

<?php
throw new [1]("Something went wrong!");
?>

Drag options to blanks, or click blank then click option'

AError

BException

CThrowable

DRuntimeException

Attempts:

3 left

💡 Hint

Common Mistakes

Using Error instead of Exception to throw an exception.

Forgetting the 'new' keyword before the class name.

The Exception class is used to throw exceptions in PHP.

2fill in blank

medium

Complete the code to catch an exception in PHP.

PHP

<?php
try {
    // code that may throw
} catch ([1] $e) {
    echo $e->getMessage();
}
?>

Drag options to blanks, or click blank then click option'

AException

BError

CThrowable

DRuntimeException

Attempts:

3 left

💡 Hint

Common Mistakes

Catching Error instead of Exception when handling exceptions.

Not specifying the exception variable in catch.

The catch block catches exceptions of type Exception or its subclasses.

3fill in blank

hard

Fix the error in the code to properly handle both errors and exceptions.

PHP

<?php
try {
    // code
} catch ([1] $e) {
    echo $e->getMessage();
}
?>

Drag options to blanks, or click blank then click option'

AException

BError

CThrowable

DErrorException

Attempts:

3 left

💡 Hint

Common Mistakes

Catching only Exception misses Errors.

Using Error alone does not catch Exceptions.

The Throwable interface allows catching both Error and Exception types.

4fill in blank

hard

Fill both blanks to create a custom exception class that extends the base Exception.

PHP

<?php
class MyException extends [1] {
    public function [2]() {
        return "Custom exception message.";
    }
}
?>

Drag options to blanks, or click blank then click option'

AException

B__construct

CgetMessage

DError

Attempts:

3 left

💡 Hint

Common Mistakes

Extending Error instead of Exception.

Overriding the constructor instead of getMessage.

Custom exceptions extend Exception and can override getMessage() to customize the message.

5fill in blank

hard

Fill all three blanks to throw and catch a custom exception properly.

PHP

<?php
class CustomError extends [1] {}

try {
    throw new [2]();
} catch ([3] $e) {
    echo "Caught custom error.";
}
?>

Drag options to blanks, or click blank then click option'

AException

BCustomError

DError

Attempts:

3 left

💡 Hint

Common Mistakes

Catching a different class than thrown.

Extending Error instead of Exception.

The custom exception class extends Exception. We throw an instance of CustomError and catch it by the same class.