What is the purpose of using the <option selected> attribute in PHP dropdown menus?

The purpose of using the <option selected> attribute in PHP dropdown menus is to pre-select a specific option when the dropdown menu is displayed. This is useful when you want to have a default value selected or when you want to display a previously selected option.

&lt;select name=&quot;dropdown&quot;&gt;
    &lt;option value=&quot;option1&quot; &lt;?php if($selectedOption == &#039;option1&#039;) echo &#039;selected&#039;; ?&gt;&gt;Option 1&lt;/option&gt;
    &lt;option value=&quot;option2&quot; &lt;?php if($selectedOption == &#039;option2&#039;) echo &#039;selected&#039;; ?&gt;&gt;Option 2&lt;/option&gt;
    &lt;option value=&quot;option3&quot; &lt;?php if($selectedOption == &#039;option3&#039;) echo &#039;selected&#039;; ?&gt;&gt;Option 3&lt;/option&gt;
&lt;/select&gt;