Array push and pop in PHP - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add an element to the end of the array.

PHP

<?php
$fruits = ['apple', 'banana'];
array_[1]($fruits, 'orange');
print_r($fruits);
?>

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

Apop

Bshift

Cpush

Dunshift

Attempts:

3 left

💡 Hint

Common Mistakes

Using array_pop instead of array_push, which removes elements.

Using array_shift or array_unshift which work on the start of the array.

The array_push function adds one or more elements to the end of an array.

2fill in blank

medium

Complete the code to remove the last element from the array and store it in a variable.

PHP

<?php
$colors = ['red', 'green', 'blue'];
$lastColor = array_[1]($colors);
echo $lastColor;
?>

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

Ashift

Bpush

Cunshift

Dpop

Attempts:

3 left

💡 Hint

Common Mistakes

Using array_push which adds elements instead of removing.

Using array_shift which removes from the start.

The array_pop function removes the last element from an array and returns it.

3fill in blank

hard

Fix the error in the code to correctly add 'pear' to the fruits array.

PHP

<?php
$fruits = ['apple', 'banana'];
array_[1]($fruits, 'pear');
print_r($fruits);
?>

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

Apop

Bpush

Cshift

Dunshift

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the order of arguments causes errors or unexpected behavior.

The array_push function requires the array as the first argument, then the element(s) to add.

4fill in blank

hard

Fill both blanks to add 'kiwi' and then remove the last element from the array.

PHP

<?php
$fruits = ['apple', 'banana'];
array_[1]($fruits, 'kiwi');
$removed = array_[2]($fruits);
echo $removed;
?>

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

Apush

Bpop

Cshift

Dunshift

Attempts:

3 left

💡 Hint

Common Mistakes

Using array_pop before array_push changes the array unexpectedly.

Using shift or unshift instead of push/pop.

First, array_push adds 'kiwi' to the end. Then, array_pop removes and returns the last element.

5fill in blank

hard

Fill all three blanks to add 'mango', remove the last element, and then add 'grape'.

PHP

<?php
$fruits = ['apple', 'banana'];
array_[1]($fruits, 'mango');
$removed = array_[2]($fruits);
array_[3]($fruits, 'grape');
print_r($fruits);
?>

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

Apush

Bpop

Cshift

Dunshift

Attempts:

3 left

💡 Hint

Common Mistakes

Using shift or unshift which affect the start of the array.

Mixing up the order of operations.

We add 'mango' with array_push, remove the last element with array_pop, then add 'grape' again with array_push.