PHP - Interfaces and TraitsWhich statement about interface constants in PHP is correct?AImplementing classes must redeclare all interface constants.BInterface constants can be declared as private or protected.CInterface constants cannot be overridden by implementing classes.DInterface constants can be changed at runtime.Check Answer
Step-by-Step SolutionSolution:Step 1: Recall interface constant rulesInterface constants are fixed and cannot be overridden by implementing classes.Step 2: Evaluate other optionsConstants cannot be private/protected, classes do not redeclare them, and constants cannot change at runtime.Final Answer:Interface constants cannot be overridden by implementing classes. -> Option CQuick Check:Interface constants are fixed and public [OK]Quick Trick: Interface constants are fixed and cannot be overridden [OK]Common Mistakes:Thinking interface constants can be private or protectedAssuming classes must redeclare constantsTrying to change constants at runtime
Master "Interfaces and Traits" in PHP9 interactive learning modes - each teaches the same concept differentlyLearnWhyDeepVisualTryChallengeProjectRecallTime
More PHP Quizzes Array Functions - Compact and extract functions - Quiz 8hard Classes and Objects - Properties and visibility - Quiz 6medium Error and Exception Handling - Why error handling matters - Quiz 5medium File Handling - Directory operations - Quiz 13medium File Handling - File pointer manipulation - Quiz 15hard Inheritance and Polymorphism - Abstract classes and methods - Quiz 8hard Sessions and Cookies - Destroying sessions - Quiz 5medium Sessions and Cookies - Session vs cookie decision - Quiz 6medium Superglobals and Web Context - $_GET for URL parameters - Quiz 1easy Superglobals and Web Context - $_FILES for file uploads - Quiz 15hard