How can developers troubleshoot and debug issues related to radio buttons not storing values in the $_POST array in PHP?

If radio buttons are not storing values in the $_POST array in PHP, developers can troubleshoot by checking if the radio buttons have unique 'name' attributes and ensuring they are enclosed within a form element with the method set to 'post'. Additionally, developers should verify that the radio buttons are within the form tags and have the 'value' attribute set correctly. 

<form method="post">
  <input type="radio" name="gender" value="male"> Male
  <input type="radio" name="gender" value="female"> Female
  <input type="submit" name="submit" value="Submit">
</form>

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
  if(isset($_POST['gender'])){
    $selected_gender = $_POST['gender'];
    echo "Selected gender: " . $selected_gender;
  } else {
    echo "Gender not selected";
  }
}
?>

Keywords

radio buttons $_POST array troubleshooting debugging PHP

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