Assignment and compound assignment in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to assign the value 10 to the variable $x.

PHP

<?php
$x [1] 10;
echo $x;

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

A=

B=>

C+=

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' instead of '=' for assignment.

Using '=>' which is for arrays, not assignment.

The single equal sign = is used to assign a value to a variable in PHP.

2fill in blank

medium

Complete the code to add 5 to the variable $count using a compound assignment operator.

PHP

<?php
$count = 10;
$count [1] 5;
echo $count;

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

A-=

B=

C*=

D+=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '=' which replaces the value instead of adding.

Using '-=' or '*=' which subtract or multiply instead of add.

The += operator adds the right value to the variable and assigns the result back to it.

3fill in blank

hard

Fix the error in the code to multiply $num by 3 using a compound assignment operator.

PHP

<?php
$num = 4;
$num [1] 3;
echo $num;

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

A/=

B+=

C*=

D-=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+=' which adds instead of multiplies.

Using '/=' or '-=' which divide or subtract instead of multiply.

The *= operator multiplies the variable by the right value and assigns the result back.

4fill in blank

hard

Complete the code to subtract 2 from $value and then assign the result back to $value.

PHP

<?php
$value = 15;
$value [1] 2;
echo $value;

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

A-=

B+=

C;

D=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+=' which adds instead of subtracts.

Forgetting the semicolon at the end of the statement.

The -= operator subtracts and assigns. The semicolon ; ends the statement.

5fill in blank

hard

Fill both blanks to divide $total by 4, assign the result back, and then add 1.

PHP

<?php
$total = 20;
$total [1] 4;
$total [2] 1;
echo $total;

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

A/=

B;

C+=

D=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '=' instead of '/=' for division assignment.

Forgetting semicolons at the end of statements.

Using '+=' before dividing.

First, /= divides and assigns. Then the statement ends with ;. Next, += adds and assigns 1.