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Quiz · Files, namespaces and Composer · lesson 7 of 7

Quiz — a JSON round trip

What does the program print?

PHP
<?php

$data = ['id' => 1, 'tags' => ['a', 'b'], 'ok' => true];
$json = json_encode($data);
$back = json_decode($json, true);
$obj = json_decode($json);
echo $json, ' ', $back['tags'][1], ' ', $obj->id, "\n";