ReflectionClassConstant::isPrivate Checks if class constant is private &reftitle.description; public boolReflectionClassConstant::isPrivate Checks if the class constant is private. &reftitle.parameters; &no.function.parameters; &reftitle.returnvalues; &true; if the class constant is private, otherwise &false; &reftitle.seealso; ReflectionClassConstant::isPublic ReflectionClassConstant::isProtected