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PHP Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to PHP. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - Which of the following is true about php variables?
A - All variables in PHP are denoted with a leading dollar sign ($).
B - The value of a variable is the value of its most recent assignment.
Answer : D
Explanation
All of the above options are correct.
Q 2 - Which of the following type of variables are instances of programmer-defined classes?
Answer : C
Explanation
Objects: are instances of programmer-defined classes, which can package up both other kinds of values and functions that are specific to the class.
Q 3 - Which of the following is correct about constants vs variables in PHP?
A - Constants may be defined and accessed anywhere without regard to variable scoping rules.
B - Once the Constants have been set, may not be redefined or undefined.
Answer : C
Explanation
Both of the above options are correct.
Q 4 - Which of the following array represents an array with a numeric index?
Answer : A
Explanation
Numeric array − An array with a numeric index. Values are stored and accessed in linear fashion.
Q 5 - Which of the following function can be used to get an array in the reverse order?
Answer : A
Explanation
array_reverse() − Returns an array in the reverse order.
Q 6 - How will you concatenate two strings?
Answer : A
Explanation
To concatenate two string variables together, use the dot (.) operator.
Q 7 - Which of the following is used to set cookies?
Answer : A
Explanation
PHP provided setcookie() function to set a cookie.
Q 8 - Which of the following provides the error code associated with this file upload?
Answer : A
Explanation
$_FILES['file']['error'] − it provides the error code associated with this file upload.
Q 9 - Which of the following method of Exception class retrieve the error message when error occured?
Answer : A
Explanation
getMessage() method of Exception class returns the message of exception.
Answer : A
Explanation
Yes! class can be created in PHP.
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