PHP echo and print Statements MCQ Questions and Answers

1. Which of the following is used to output one or more strings in PHP?

a) echo

b) print

c) Both a) and b)

d) None of the above

Answer:

c) Both a) and b)

Explanation:

Both echo and print are used to output strings in PHP.

2. What is the main difference between echo and print?

a) echo can output multiple strings, print cannot

b) print returns a value, echo does not

c) echo is faster than print

d) Both a) and b)

Answer:

d) Both a) and b)

Explanation:

echo can accept multiple arguments whereas print can only handle one, and print always returns 1, unlike echo.

3. How do you output a variable and a string together using echo?

a) echo "$variable string";

b) echo $variable + "string";

c) echo $variable . "string";

d) echo ($variable "string");

Answer:

c) echo $variable . "string";

Explanation:

The . operator is used for string concatenation in PHP.

4. Which of the following is a correct way to use echo?

a) echo("Hello World");

b) echo "Hello World";

c) Both a) and b)

d) None of the above

Answer:

c) Both a) and b)

Explanation:

echo can be used with or without parentheses.

5. What is the correct way to output HTML tags using print?

a) print "<h1>Hello World</h1>";

b) print ("<h1>Hello World</h1>");

c) Both a) and b)

d) None of the above

Answer:

c) Both a) and b)

Explanation:

print can output HTML tags either directly or within parentheses.

6. How can you output multiple strings using echo?

a) echo "string1", "string2";

b) echo "string1" + "string2";

c) echo "string1" . "string2";

d) echo "string1 string2";

Answer:

a) echo "string1", "string2";

Explanation:

echo can take multiple parameters separated by commas to output strings consecutively.

7. What is the output of print('Hello' . ' ' . 'World')?

a) Hello World

b) HelloWorld

c) Error

d) 1

Answer:

a) Hello World

Explanation:

The . operator concatenates strings, and print outputs the concatenated string.

8. Which statement is true about echo and print?

a) echo and print can both be used in expressions

b) print can be used in expressions, but echo cannot

c) echo can be used in expressions, but print cannot

d) Neither can be used in expressions

Answer:

b) print can be used in expressions, but echo cannot

Explanation:

print returns a value, so it can be used in expressions, unlike echo.

9. What will the following PHP code output: echo 10 + 20;

a) 1020

b) 30

c) Error

d) Nothing

Answer:

b) 30

Explanation:

echo outputs the result of the arithmetic operation, which is 30 in this case.

10. Which of the following is a valid use of print in PHP?

a) $result = print "Hello World";

b) $result = print ("Hello World");

c) Both a) and b)

d) None of the above

Answer:

c) Both a) and b)

Explanation:

print can be used in this way and will assign the value 1 to $result.

11. Can echo be used to output the value of an array directly?

a) Yes

b) No

c) Only with associative arrays

d) Only with numeric arrays

Answer:

b) No

Explanation:

echo cannot output array values directly; it only works with strings and numbers.

12. What is the output of the following code: print "Hello" . "World";

a) Hello World

b) HelloWorld

c) Error

d) 1

Answer:

b) HelloWorld

Explanation:

The . operator concatenates the strings without adding any space.

13. How can you output a newline character using echo?

a) echo "\n";

b) echo "\\n";

c) echo '/n';

d) echo '//n';

Answer:

a) echo "\n";

Explanation:

In double-quoted strings, \n represents a newline character.

14. What is the result of using print in a ternary operator like this: $result = (true ? print "Yes" : print "No");

a) Yes

b) No

c) 1

d) An error

Answer:

a) Yes

Explanation:

The ternary operation evaluates to true, so print "Yes" is executed.

15. Can echo and print be used interchangeably without affecting the output?

a) Yes, always

b) No, never

c) Only in simple strings

d) Only in complex strings

Answer:

c) Only in simple strings

Explanation:

In simple strings without the need for a return value or multiple arguments, echo and print can often be used interchangeably.