String concatenation operator in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to concatenate two strings using the correct operator.

PHP

<?php
$greeting = "Hello" [1] " World!";
echo $greeting;
?>

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

A+

B&&

C&

D.

Attempts:

3 left

💡 Hint

Common Mistakes

Using + instead of . for string concatenation.

Using && which is a logical operator.

In PHP, the dot . operator is used to join (concatenate) strings.

2fill in blank

medium

Complete the code to join the variables $first and $last into $fullName.

PHP

<?php
$first = "John";
$last = "Doe";
$fullName = $first [1] $last;
echo $fullName;
?>

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

A,

B+

C.

D&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using + which causes errors with strings.

Using commas which do not concatenate strings.

The dot . operator joins two strings stored in variables.

3fill in blank

hard

Fix the error in concatenating $a and $b with a space between them.

PHP

<?php
$a = "Good";
$b = "Morning";
$result = $a [1] " " [2] $b;
echo $result;
?>

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

A.

B+

C,

D&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using + which causes errors.

Using commas which do not concatenate strings.

Use the dot . operator to concatenate multiple strings and variables.

4fill in blank

hard

Fill both blanks to concatenate $city and $country with a comma and space between.

PHP

<?php
$city = "Paris";
$country = "France";
$location = $city[1] ", " [2] $country;
echo $location;
?>

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

A.

B+

C,

D&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using + which is for numbers.

Using commas which do not concatenate strings.

Use the dot . operator to join strings and literals.

5fill in blank

hard

Fill all three blanks to build a greeting with $name and $day.

PHP

<?php
$name = "Alice";
$day = "Monday";
$message = "Hello, "[1] $name [2] "! Today is " [3] $day;
echo $message;
?>

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

A+

B.

C,

D&&

Attempts:

3 left

💡 Hint

Common Mistakes

Using + which causes errors with strings.

Using commas or && which do not concatenate strings.

Use the dot . operator to join all parts of the greeting string.