What steps can be taken to troubleshoot JavaScript errors related to radio button selection in PHP forms?

To troubleshoot JavaScript errors related to radio button selection in PHP forms, you can start by checking the JavaScript code that handles the radio button selection. Make sure that the JavaScript function is properly linked to the radio buttons and that there are no syntax errors. Additionally, ensure that the PHP form is correctly sending the selected radio button value to the server. 

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

<script>
  function validateForm() {
    var selectedValue = document.querySelector('input[name="gender"]:checked').value;
    if(selectedValue === undefined) {
      alert("Please select a gender");
      return false;
    }
    return true;
  }
</script>

Keywords

JavaScript errors radio button selection PHP forms troubleshooting

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