How can PHP be used to display different content based on user selections from a dropdown menu?

To display different content based on user selections from a dropdown menu in PHP, you can use a form with a dropdown menu and submit button. Upon form submission, you can use PHP to check the selected value and display different content accordingly.

<form method="post">
    <select name="selection">
        <option value="option1">Option 1</option>
        <option value="option2">Option 2</option>
    </select>
    <input type="submit" name="submit" value="Submit">
</form>

<?php
if(isset($_POST['submit'])){
    $selection = $_POST['selection'];
    
    if($selection == "option1"){
        echo "Content for Option 1";
    } elseif($selection == "option2"){
        echo "Content for Option 2";
    }
}
?>