Hello, I have seen a similar discussion for var_export(), and the answer was basically "use a regex". E.g.:
$json = preg_replace_callback(
'/^(?: {4})+/m',
fn ($m) => str_repeat($indent, strlen($m[0]) / 4),
json_encode($data, JSON_PRETTY_PRINT)
);
That said, I wouldn't mind a new indent parameter (but note that allowing
an arbitrary string [not limited to whitespace] might result in invalid
JSON).
Regards,
--
Guilliam Xavier
