Empty JSON array converts to TypeScript and PHP but not CSV

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A JSON converter tool gave inconsistent results when given an empty array, []. The input is valid JSON, yet the four output formats disagreed. Laravel produced an empty PHP array and TypeScript yielded an empty interface, while the PHP DTO came out as an empty class. CSV conversion failed with an error because it expects an array of objects, and the output was cleared. Broken JSON such as trailing commas or a lone brace produces parse errors, which is distinct from the valid-but-empty case.

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