$ php test.php -dopcache.jit_buffer_size=0 -dopcache.enable=1 -dopcache.enable_cli=0
// - First execution: 42
// - Second execution: 42
// - Third execution: 42

$ php test.php -dopcache.jit_buffer_size=0 -dopcache.enable=1 -dopcache.enable_cli=1
// - First execution: 42
// - Second execution: Enum case value must be compile-time evaluatable
// - Third execution: Enum case value must be compile-time evaluatable

// - First execution: 42
// - Second execution: 42
// - Third execution: 42