Php Operators And Expressions(Engineering > Computer Science And Engineering > Php ) Questions and answers for exam Preparation

Question 1. What will be the output of the following PHP code ?# echo "Hello world";echo "# Hello world";

Error
# Hello world
Hello world# Hello world
Hello world

Explanation:-

Answer: Option B. -> # Hello world

Question 2. What will be the output of the following PHP code ?

Error
Nothing
Missing semicolon error
Hello World

Explanation:-

Answer: Option B. -> Nothing

Question 3. What will be the output of the following PHP code ?$color = "red";echo "$color";echo "$COLOR";echo "$Color";

redredred
red
redred
Error

Explanation:-

Answer: Option B. -> red

Question 4. What will be the output of the following PHP code ?print_r "Hello world"

Missing semicolon error
Hello World
Error
Nothing

Explanation:-

Answer: Option C. -> Error

Question 5. What will be the output of the following PHP code ?echo "Hello World"

Hello world in italics
Error
Nothing
Hello world

Explanation:-

Answer: Option A. -> Hello world in italics

Question 6. What will be the output of the following PHP code ?echo "echo "Hello World"";

Error
echo Hello world
echo “Hello world”
Hello world

Explanation:-

Answer: Option A. -> Error

Question 7. What will be the output of the following PHP code ?$color = red;echo "$color" . red ;

red
red red
error
nothing

Explanation:-

Answer: Option C. -> error

Question 8. What will be the output of the following PHP code ?< ? php < ? php echo "Hello world"; ? > ? >

Nothing
Hello world
Hello
Error

Explanation:-

Answer: Option D. -> Error

Question 9. What will be the output of the following PHP code ?$color = red;echo "$color";

$color
Error
red
red

Explanation:-

Answer: Option A. -> $color

Question 10. What will be the output of the following PHP code ?$color1 = red;$color2 = green;echo "$color1"."$color2";

red green
green
error
red

Explanation:-

Answer: Option C. -> error