PHP Quiz

1. Which function converts special characters to HTML entities?

htmlspecialchars()

strip_tags()

htmlentities()

specialchars()

2. Which function returns all defined constants?

get_defined_constants()

defined_constants()

list_constants()

constants()

3. What is the output of: echo 10 <=> 20;

-1

1

0

Error

4. What is the output of: echo strlen("Hello World");

11

10

12

Error

5. How do you declare an array with keys in PHP?

array("key"=> "value")

array("value")

{key:value}

["key":"value"]

6. Which of these is a correct way to create an array in PHP?

array(1,2,3)

[1,2,3]

{1,2,3}

(1,2,3)

7. Which function outputs data and returns 1?

print()

echo()

write()

output()

8. Which function reads a file into a string?

file_get_contents()

fread()

readfile()

get_file()

9. Which operator is used for spaceship comparison?

<=>

<>

==>

=>

10. Which function converts an array to a string?

implode()

explode()

join_array()

array_string()