PHP array_fill() Tutorial

Welcome to this comprehensive guide on using the array_fill() function in PHP! In this tutorial, we'll explore how to use this function to fill arrays with a specific value. Let's dive right in! 🎯

What is array_fill()?

array_fill() is a PHP function used to fill an array with a specific value. This function comes in handy when you want to create an array with the same value repeated multiple times. 💡

Basic Usage

To use array_fill(), you first need to understand the syntax:

php

array_fill(start, number_of_elements, value)

start: The index from which filling should start.
number_of_elements: The number of elements to be filled.
value: The value to be filled in the specified elements.

Here's a simple example:

php

<?php
$myArray = array_fill(0, 5, "Hello");
print_r($myArray);
?>

Output:
Array
(
    [0] => Hello
    [1] => Hello
    [2] => Hello
    [3] => Hello
    [4] => Hello
)

In this example, we created an array called $myArray and filled it with the string "Hello" starting from index 0 and continuing for 5 elements. ✅

Filling an Array with Different Values

You can also fill an array with different values for each group of elements using the array_fill_keys() function. Here's an example:

php

<?php
$keys = array(0, 2, 4);
$values = array("One", "Two", "Three");
$myArray = array_fill_keys($keys, $values);
print_r($myArray);
?>

Output:
Array
(
    [0] => One
    [2] => Two
    [4] => Three
)

In this example, we created an array called $myArray and filled it with the values from the $values array using the keys from the $keys array. 📝

Quiz

We hope this tutorial has helped you understand the PHP array_fill() function better. Stay tuned for more tutorials on PHP, and happy coding! 😄