PHP - Interfaces and Traits
How do you access a constant named VERSION defined inside an interface named AppInterface?
How do you access a constant named VERSION defined inside an interface named AppInterface?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Recall syntax for accessing interface constants
Interface constants are accessed using the interface name followed by :: and the constant name.Step 2: Check each option
Only 'AppInterface::VERSION' uses correct syntax; others are invalid for interface constants.Final Answer:
AppInterface::VERSION -> Option BQuick Check:
Access interface constant = InterfaceName::CONSTANT [OK]
Quick Trick: Use InterfaceName::CONSTANT to access interface constants [OK]
Common Mistakes:
- Using object operator (->) to access constants
- Using $this for interface constants
- Using self:: inside unrelated classes
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