Foreach loop for arrays in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to loop through the array and print each fruit.

PHP

<?php
$fruits = ['apple', 'banana', 'cherry'];
foreach ($fruits as [1]) {
    echo $fruit . "\n";
}
?>

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

A$fruit

B$fruits

C$item

D$value

Attempts:

3 left

💡 Hint

Common Mistakes

Using the array variable itself instead of a single element variable.

Using a variable name that is not defined in the loop.

The variable $fruit is used to represent each element in the array during the loop.

2fill in blank

medium

Complete the code to loop through the array with keys and values.

PHP

<?php
$ages = ['Alice' => 25, 'Bob' => 30];
foreach ($ages as [1] => $age) {
    echo "$name is $age years old.\n";
}
?>

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

A$value

B$name

C$item

D$key

Attempts:

3 left

💡 Hint

Common Mistakes

Using the value variable instead of the key variable.

Using a variable name that does not match the echo statement.

The key variable $name holds the names in the array, which are the keys.

3fill in blank

hard

Fix the error in the foreach loop to correctly print keys and values.

PHP

<?php
$colors = ['red' => '#FF0000', 'green' => '#00FF00'];
foreach ($colors as $color [1] $hex) {
    echo "$color: $hex\n";
}
?>

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

A->

B=

C:

D=>

Attempts:

3 left

💡 Hint

Common Mistakes

Using assignment operator = instead of =>.

Using object operator -> or colon : which are incorrect here.

The correct syntax to separate key and value in a foreach loop is =>.

4fill in blank

hard

Fill both blanks to create a dictionary of word lengths for words longer than 3 letters.

PHP

<?php
$words = ['cat', 'house', 'dog', 'elephant'];
$lengths = [];
foreach ($words as $word) {
    if ([1]($word) [2] 3) {
        $lengths[$word] = strlen($word);
    }
}
?>

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

Astrlen

B>

C<

Dcount

Attempts:

3 left

💡 Hint

Common Mistakes

Using count which works on arrays, not strings.

Using < instead of > causing wrong filtering.

Use strlen to get the length of the word and > to check if it is longer than 3.

5fill in blank

hard

Fill all three blanks to create an associative array with uppercase keys and values greater than 10.

PHP

<?php
$data = ['a' => 5, 'b' => 15, 'c' => 20];
$result = [];
foreach ($data as [1] => [2]) {
    if ([2] > 10) {
        $result[strtoupper([1])] = [2];
    }
}
?>

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

A$key

B$value

C$val

D$k

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up key and value variable names.

Using inconsistent variable names inside the loop.

The key variable is $key, the value variable is $value, and the uppercase function uses the key $key.