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Object Oriented Concept MCQ question and answer with solution | PHP Programming

Learn Object Oriented Concept MCQ Questions and answers with easy and logical explanations. Object Oriented Concept MCQ in PHP programming provides all type of technical mcq questions which is important for technical exams, cumpus exams and other entrance examination Page-4 section-2

Each section contains 100 MCQs on Object Oriented Concept .
31
What is the value of message? 
$name = “John”;
$message = ‘Hello, $name’;
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Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
32
The result of below statements will be: 
$str = ""Hello fri3nd, you're
 feeling          happy today?”;
echo str_word_count($str);
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Answer & Solution
Answer: Option A
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33
PHP recognises constructors by the name . . . . .
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Answer & Solution
Answer: Option B
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34
In . . . . . constructors, it is important to remember that you have to call the parent constructor explicitly.
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Answer & Solution
Answer: Option D
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35
Constructor and destructor methods have no . . . . . . and are called automatically - they cannot be called explicitly and consequently their declarations need no access specifier. 
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Answer & Solution
Answer: Option C
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36
Unlike constructors, you cannot pass information to a destructor, because you are never sure when its going to be run.
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Answer & Solution
Answer: Option A
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37
You can invoke class constructors that don’t have any relation to the instantiated object by simply prefacing _constructor with the class name like.
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Answer & Solution
Answer: Option A
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38
 . . . . . . is a class which can only be instantiated once. You can effectively only have one object per . . . . . class in an application.
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Answer & Solution
Answer: Option C
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39
Even if you don’t delete the object yourself using . . . . . , PHP still calls the destructor when it determines that the object is no longer used.
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Answer & Solution
Answer: Option D
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40
You can overwrite a Singleton with the wrong kind of data. 
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Answer & Solution
Answer: Option B
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