PHP - Interfaces and Traits
What is the correct way to access a constant defined in a PHP interface named
MyInterface with a constant VERSION?What is the correct way to access a constant defined in a PHP interface named MyInterface with a constant VERSION?
easy📝 Conceptual Q11 of 15
Step-by-Step Solution
Solution:
Step 1: Understand interface constants access
Constants in interfaces are accessed using the interface name followed by double colon (::) and the constant name.Step 2: Apply correct syntax
UsingMyInterface::VERSIONcorrectly accesses the constant defined in the interface.Final Answer:
MyInterface::VERSION -> Option DQuick Check:
Interface constants use InterfaceName::CONSTANT [OK]
Quick Trick: Use InterfaceName::CONSTANT to access interface constants [OK]
Common Mistakes:
- Using $this->CONSTANT inside interface context
- Using self::CONSTANT which refers to class, not interface
- Using arrow operator (->) with interface name
Master "Interfaces and Traits" in PHP
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