PHP - Inheritance and Polymorphism
What happens if a child class in PHP does not define its own constructor but the parent class has one?
What happens if a child class in PHP does not define its own constructor but the parent class has one?
easy📝 Conceptual Q11 of 15
Step-by-Step Solution
Solution:
Step 1: Understand default constructor behavior
If the child class does not define a constructor, PHP automatically calls the parent's constructor when creating a child object.Step 2: Confirm no error or override
Since the child has no constructor, no error occurs and the parent's constructor runs as expected.Final Answer:
The parent's constructor is automatically called when creating a child object. -> Option CQuick Check:
Child without constructor calls parent constructor [OK]
Quick Trick: No child constructor? Parent constructor runs automatically [OK]
Common Mistakes:
- Thinking child constructor must exist to call parent constructor
- Assuming PHP throws error if child lacks constructor
- Believing child inherits parent's constructor as a method
Master "Inheritance and Polymorphism" in PHP
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