php why array have only the last element code example

Example 1: how to get last array element in php

<?php

$source_array = ['key1' => 'value1', 'key2' => 'value2', 'key3' => 'value3'];

$result = end($source_array);

echo "Last element: ".$result;

?>

Example 2: php last item of array

echo end(['Gon', 'Killua', 'Hisoka']) // print Hisoka