How can you access the selected value from a select box in PHP using $_POST?

To access the selected value from a select box in PHP using $_POST, you need to ensure that the select box is contained within a form that submits data using the POST method. Once the form is submitted, you can access the selected value by using $_POST['select_name'], where 'select_name' is the name attribute of the select box. 

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

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $selectedValue = $_POST['select_name'];
    echo "Selected value: " . $selectedValue;
}
?>

Keywords

PHP $_POST select box value access

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