- json_encode: documentation ( source)
<?php
$foo = [
0 => [
'bar' => 'baz',
'qux' => [
'x',
'y',
'y',
],
],
];
echo json_encode($foo, JSON_FORCE_OBJECT | JSON_PRETTY_PRINT), PHP_EOL,
json_encode((object) $foo, JSON_PRETTY_PRINT);