I have a table that displays tuples of books and data about them. There is also a radio button for each row. The idea is that the user selects the button to indicate that they want to order that book.
function displayAllBooks(){
$dbhost = 'localhost:3306';
$dbuser = 'root';
$conn = mysqli_connect($dbhost, $dbuser);
//sql statement to use the database
$sql = 'use BookStore';
mysqli_query($conn, $sql);
$sql = 'SELECT * FROM Author, Books, Written_By, Book_Categories, Assigned_To '
. 'WHERE Author.Author_ID = Written_By.Author_ID'
. ' AND Books.ISBN = Written_By.ISBN'
. ' AND Books.ISBN = Assigned_To.ISBN'
. ' AND Assigned_To.Cat_Code = Book_Categories.Cat_Code'
. ' ORDER BY ALname ASC';
$result = mysqli_query($conn, $sql);
$row = mysqli_fetch_assoc($result);
echo '<form action = "customerDashboard.php" method = "post">';
echo 'First name:
<input type= "text" name ="CFname"<br>
Last name:
<input type= "text" name ="CLname"<br>';
echo '<p style="text-align:center"><b> All Books </b></p>';
echo '<table class="center">'
. '<tr>'
. '<th>Order</th>'
. '<th>Title</th>'
. '<th>Price</th>'
. '<th>Author</th>'
. '<th>Publication Date</th>'
. '<th>User Review</th>'
. '<th>Category</th>'
. '</tr>';
if (mysqli_num_rows($result) > 0) {
$bookCt = 0;
//mysqli_fetch_assoc associates an array with the results
while ($row) {
$retTitle = $row["Title"];
$retPrice = $row["Price"];
$retALname = $row["ALname"];
$retPubDate = $row["Publication_Date"];
$retReview = $row["User_Reviews"];
$retCat = $row["Cat_Desc"];
//fetch ISBN for each book, for use with the radio buttons to
//place orders
$sql = 'SELECT ISBN from Books WHERE Title="'.$retTitle .'"';
$resultISBN = mysqli_query($conn, $sql);
$rowISBN = mysqli_fetch_assoc($resultISBN);
$currISBN = $rowISBN["ISBN"];
echo"<tr>";
echo '<td><input type="radio" name="'.$currISBN.'"></td>';
echo "<td> $retTitle </td>";
echo "<td> $retPrice </td>";
echo "<td> $retALname </td>";
echo "<td> $retPubDate </td>";
echo "<td> $retReview </td>";
echo "<td> $retCat </td>";
echo "</tr>";
$row = mysqli_fetch_assoc($result);
}
}
else {
echo "0 results";
}
echo "</table>";
echo '<input type="submit" name="placeOrder" value="Order Selected Book">';
echo '</form>';
I've been trying something like onselect="load the button name into a session variable" but I have been unable to implement it.
Each radio button has a name value that is the ISBN (primary key) for the current book thats being put into the table. I want to be able to select a radio button, have that ISBN be stored in a session or global variable, and use that specific ISBN for another method, placeOrder(). After a radio button is checked, the user inputs their first and last name and presses "order selected book", which reloads the page and triggers the placeOrder() function via:
else if(isset($_POST["placeOrder"])){
//for placing orders on a single book
placeOrder();
}
which is present at the beginning of the PHP portion, alongside other function calls.
I'm pretty new to PHP and HTML, so forgive me if the answer is obvious. I could do this if the radio button name was explicit, but since it is changing with each row, I cannot figure it out.
Main idea: How can i capture info that a selected radio button corresponds with so I can use said info in another function?
The answer doesn't have to involve session or global variables, any help is appreciated.
