National_Instruments
200-500 · Question #7
200-500 Question #7: Real Exam Question with Answer & Explanation
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Question
Given the following code, what is correct? function f(stdClass &$x = NULL) { $x = 42; } $z = new stdClass; f($z); var_dump($z);
Options
- AError: Typehints cannot be NULL
- BError: Typehints cannot be references
- CResult is NULL
- DResult is object of type stdClass
- EResult is 42
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