set_value() is working but set_select() not working

Your problem is your passing an object array to the view from find not an associated array

PHP Code:

// so to access just use:
<option value="<?= $doc->id; ?>" <?= set_select('doc_type_id', $doc->id) ?>> <?= $doc->name; ?>

What did you Try? What did you Get? What did you Expect?

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