[Solved] Identify the mistake in the following PHP code snippet:class Base { public function __construct() { echo "Base initialized\n";... | PHP

PHP - Inheritance and Polymorphism

Identify the mistake in the following PHP code snippet:

class Base {
  public function __construct() {
    echo "Base initialized\n";
  }
}
class Derived extends Base {
  public function __construct() {
    parent::__construct;
    echo "Derived initialized\n";
  }
}

AIncorrect class inheritance syntax

BMissing parentheses when calling parent constructor

CConstructor name should be the class name

DEcho statements cannot be used in constructors

Step-by-Step Solution

Solution:

Step 1: Review parent constructor call
The code uses parent::__construct; which lacks parentheses.
Step 2: Understand correct syntax
Parent constructor must be called as a method: parent::__construct();
Step 3: Check other options
Inheritance syntax is correct, constructor naming is correct (using __construct), and echo is valid inside constructors.
Final Answer:
Missing parentheses when calling parent constructor -> Option B
Quick Check:
Always include parentheses when calling parent::__construct() [OK]

Quick Trick: Always use parentheses when calling parent::__construct() [OK]

Common Mistakes:

Forgetting parentheses on method calls
Confusing constructor naming conventions
Misusing inheritance syntax

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More PHP Quizzes

Identify the mistake in the following PHP code snippet:

Step 1: Review parent constructor call

Step 2: Understand correct syntax

Step 3: Check other options

Final Answer:

Quick Check:

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