In the provided PHP code snippet, what improvements can be made to ensure the correct transmission of radio button values in a form submission?

The issue with the provided code snippet is that the radio button values are not being properly transmitted in the form submission. To ensure the correct transmission of radio button values, each radio button should have a unique "name" attribute within the same group. This way, only one value will be submitted. Additionally, the use of isset() function can help in checking if the radio button value is set before processing it. 

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

<?php
if(isset($_POST['submit'])) {
    if(isset($_POST['gender'])) {
        $gender = $_POST['gender'];
        echo "Selected gender: " . $gender;
    } else {
        echo "Please select a gender";
    }
}
?>

Keywords

PHP radio buttons form submission $_POST validation

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