php - HTML form POST data not transferring to next page

Solution:

1. You have forgotten thevalue attribute from the<option> elements. Whatever is in thevalue attribute is what is returned to the server script.

2. You have atype="input" attribute on the<select> element, that does not belong there.

3. You have called the button<button type="submit" name="heroname"> which is also what you called the dropdown<select name="heroname"> you cannot use the same name more than once. So change the button name to something else like<button type="submit" name="submithero"> for example

<form method="post" action="hero_modify_form.php">
    <div>
        <label>Select a hero to add or modify:  </label>
        <select name="heroname">
            <option></option>
<?php foreach ($data as $row): ?>
            <option value="<?php echo $row['Hero_Name'] ?>">
            <?php echo $row['Hero_Name'] ?>
            </option>
<?php endforeach ?>
        </select>
    </div>
    <div>
        <button type="submit" name="submithero">Submit</button>
    </div>
</form>
Copy code

Solution:

the button does not need a name attribute

<form method="post" action="hero_modify_form.php">
        
            <div>
                <label>Select a hero to add or modify:  </label>
                <select name="heroname">
                    <option></option>
                    <?php foreach ($data as $row): ?>
                        <option value="<?php echo $row['Hero_Name'] ?>">
                            <?php echo $row['Hero_Name'] ?>
                        </option>
                    <?php endforeach ?>
                </select>
            </div>
            <div>
                <button type="submit">Submit</button>
            </div>
        </form>
Copy code

Solution:

First, I removed the value attribute from select. Second, I added a value attribute to option. Third, I changed the name for the button to match the IF statement on the next page. The heroname is now being passed to the next page. I have a whole new set of errors now about undefied index, which I will research first, and if needed, post a new question. Thank you all for the help!!