Problem with php's json_encode function, phpjson_encode function_PHP tutorial

php json_encode function problem, phpjson_encode function

php json_encode function problem:

$ary = [];
$ary[0] = 'a';
$ary[1] = 'b';
echo json_encode($ary) . '
';
echo json_encode($ary, JSON_FORCE_OBJECT);

Result:

["a","b"]
{"0":"a","1":"b"}

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