Array slice and splice in PHP - Mini Project: Build & Apply

Array slice and splice

📖 Scenario: You are managing a list of fruits in a basket. Sometimes you want to look at a part of the list without changing it, and sometimes you want to remove some fruits and add new ones in their place.

🎯 Goal: Learn how to use PHP array functions array_slice to get a part of an array without changing it, and array_splice to remove and add elements in an array.

📋 What You'll Learn

Create an array called $fruits with exact values: 'apple', 'banana', 'cherry', 'date', 'elderberry'

Create a variable called $start and set it to 1

Use array_slice with $fruits and $start to get a slice called $someFruits

Use array_splice on $fruits starting at $start to remove 2 elements and add 'fig' and 'grape'

Print $someFruits and $fruits arrays using print_r

💡 Why This Matters

🌍 Real World

Managing lists of items where you want to look at parts of the list or change parts of it, like editing a shopping list or playlist.

💼 Career

Understanding how to manipulate arrays is essential for backend development, data processing, and working with collections of data in PHP.

1

Create the initial array of fruits

Create an array called $fruits with these exact values in order: 'apple', 'banana', 'cherry', 'date', 'elderberry'.

PHP

# Your code here

Need a hint?

Use square brackets [] to create the array with the exact fruit names as strings.

2

Set the start index for slicing and splicing

Create a variable called $start and set it to the number 1.

PHP

<?php
$fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry'];
# Your code here

Need a hint?

Just assign the number 1 to the variable $start.

3

Get a slice of the fruits array

Use array_slice with $fruits and $start to create a new array called $someFruits that contains the part of $fruits starting from index 1.

PHP

<?php
$fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry'];
$start = 1;
# Your code here

Need a hint?

Use array_slice with two arguments: the array and the start index.

4

Remove and add fruits using array_splice and print results

Use array_splice on $fruits starting at $start to remove 2 elements and add 'fig' and 'grape'. Then print $someFruits and $fruits using print_r.

PHP

<?php
$fruits = ['apple', 'banana', 'cherry', 'date', 'elderberry'];
$start = 1;
$someFruits = array_slice($fruits, $start);
# Your code here

Need a hint?

Use array_splice with four arguments: the array, start index, number to remove, and an array of new fruits to add. Then use print_r to show both arrays.