function add_questions_by_category_to_quiz($quiz_id, $category_id) {
// 1. Existing questions fetch karo
$existing = get_post_meta($quiz_id, 'quiz-question', true);
if (!is_array($existing)) {
$existing = [];
}
// 2. Category ke questions lao
$questions = get_posts([
'post_type' => 'dtlms_questions', // apke plugin ka question post type
'posts_per_page' => -1,
'tax_query' => [
[
'taxonomy' => 'question_category', // actual taxonomy slug daalo
'field' => 'term_id',
'terms' => $category_id,
]
],
'fields' => 'ids'
]);
// 3. Merge karo bina duplicate ke
$new_questions = array_unique(array_merge($existing, $questions));
// 4. Save karo
update_post_meta($quiz_id, 'quiz-question', $new_questions);
}
Free Demo Test – Jee Prep Master
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