php和javascript中的下拉框

Question

I am looking for a way to create a drop down list depending on what the user chooses. If the user picks the package of one profile the the output will give the user a drop down list with 1 field if the user chooses two profiles the output will give the user a drop down with 2 fields. The code recently displays just one dropdown even if the user chooses the second option

                    <ul class="dropdown-menu <?= empty($business) ? 'hidden' : '' ?>" aria-labelledby="business_list">
                    <?php foreach ($business as $key => $item) : ?>
                        <li><?= Html::a($item->name, ['social-manager/profiles', 'b' => $key]) ?></li>
                    <?php endforeach; ?>
                </ul>

Answer 1

I will assume you are using jQuery.You will need to define an number variable var length based on user selection. If user selects option 1 then var length=1,if user selects option 2 then var length=2; Th for loop below should generate the options based on user selection.

for(var x=0;x<length;x++){
.....
}