How can the issue of displaying an error message when no selection is made in a dropdown be addressed in PHP?

Issue: To address the problem of displaying an error message when no selection is made in a dropdown in PHP, you can use a conditional statement to check if the selected value is empty. If it is empty, display an error message prompting the user to make a selection. 

<?php
if(isset($_POST['submit'])){
    $selected_option = $_POST['dropdown'];
    
    if(empty($selected_option)){
        echo "Please make a selection from the dropdown.";
    } else {
        // Process the selected option
    }
}
?>

<form method="post">
    <select name="dropdown">
        <option value="">Select an option</option>
        <option value="option1">Option 1</option>
        <option value="option2">Option 2</option>
        <option value="option3">Option 3</option>
    </select>
    <input type="submit" name="submit" value="Submit">
</form>

Keywords

PHP dropdown validation error message empty selection

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