Ternary operator in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to assign $result to 'Yes' if $a is true, otherwise 'No'.

PHP

$result = $a ? [1] : 'No';

Drag options to blanks, or click blank then click option'

A'No'

B'Yes'

Ctrue

Dfalse

Attempts:

3 left

💡 Hint

Common Mistakes

Putting 'No' as the first value, which is for the false case.

Using true or false instead of the string 'Yes'.

The ternary operator syntax is condition ? value_if_true : value_if_false. Here, if $a is true, $result should be 'Yes'.

2fill in blank

medium

Complete the code to assign $status to 'adult' if $age is 18 or more, otherwise 'minor'.

PHP

$status = ($age >= 18) ? [1] : 'minor';

Drag options to blanks, or click blank then click option'

A'minor'

B$age

C18

D'adult'

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping 'adult' and 'minor' values.

Using the number 18 instead of the string 'adult'.

If $age is 18 or more, $status should be 'adult'. The ternary operator returns 'adult' when the condition is true.

3fill in blank

hard

Fix the error in the ternary operator to assign $message to 'Success' if $code equals 200, else 'Error'.

PHP

$message = ($code == 200) ? [1] : 'Error';

Drag options to blanks, or click blank then click option'

A'Success'

B'Error'

C200

DSuccess

Attempts:

3 left

💡 Hint

Common Mistakes

Using Success without quotes causing undefined constant error.

Using 200 instead of the string 'Success'.

In PHP, strings must be in quotes. 'Success' is the correct string value to assign.

4fill in blank

hard

Fill both blanks to assign $output to 'even' if $num is divisible by 2, else 'odd'.

PHP

$output = ($num [1] 2 == 0) ? [2] : 'odd';

Drag options to blanks, or click blank then click option'

A%

B'even'

C'odd'

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using == instead of % for modulus.

Assigning 'odd' in the true case.

The modulus operator % checks divisibility. If remainder is 0, $num is even, so assign 'even'.

5fill in blank

hard

Fill all three blanks to create a ternary that assigns $result to uppercase $word if $flag is true, else lowercase $word.

PHP

$result = $flag ? [1]([2]) : [3]($word);

Drag options to blanks, or click blank then click option'

Astrtoupper

B$word

Cstrtolower

Attempts:

3 left

💡 Hint

Common Mistakes

Using the same function for both true and false cases.

Not passing $word as argument.

If $flag is true, convert $word to uppercase using strtoupper($word), else lowercase with strtolower($word).