PHPIntermediate

PHP Arrays

Work with PHP arrays: indexed arrays, associative arrays, looping with foreach, and helpful array functions like sort and array_sum.

01Indexed arrays

main.php

<?php
$nums = [10, 20, 30];
echo $nums[0], "\n";
echo count($nums), "\n";

Output

10
3

main.php

<?php
$person = ["name" => "Ada", "age" => 36];
echo $person["name"], "\n";
echo $person["age"], "\n";

Output

Ada
36

main.php

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

Output

apple
banana
cherry

main.php

<?php
$nums = [3, 1, 4, 1, 5];
echo array_sum($nums), "\n";
echo max($nums), "\n";
sort($nums);
echo implode(",", $nums), "\n";

Output

14
5
1,1,3,4,5