How to add identifier to table row submit button - php

Question

I am currently trying to build a booking system for a theatre. I have 5 different productions which are found from my database with a query in php.
I have a table showing the productions and their associated ticket price. Each row states the production, ticket price and a submit button (using $_POST) to choose that production.
I am trying to send the title of the selected production as production_'production title'. e.g. if hamlet was selected I would retrieve the selection using $_POST['production_hamlet'].
However I do not know how to replace the title of each production found in the query when retrieving the POST.
e.g. on the next page when echoing out to see if it's submitted I don't know what to write after echo $POST['production.....'].
Here is my code:
<form method="post" action="choose_performance.php">
<table name="choose_performance">
<thead id="td">
<tr>
<td>Production</td>
<td>Basic Ticket Price</td>
<td>Select</td>
</tr>
<thead>
<tbody>
<?php
$production_set = find_productions();
while($row = mysqli_fetch_assoc($production_set)){?>
<tr>
<td><?php echo $row['Title']?>
<input type="hidden" name="<?php echo "production_".$row['Title']?>" value="<?php echo $row['Title']?>" />
</td>
<td><?php echo $row['BasicTicketPrice'];?>
<input type="hidden" name="<?php echo "price_".$row['Title']?>" value="<?php echo $row['BasicTicketPrice']?>" />
</td>
<td>
<input type="submit" name="submit" value="Submit"
onclick='alert("Thank you for your selection. Please choose your preferred performance time and date on the next page.");'>
</td>
</tr>
<?php
}
?>
</form>
Any advice on how to retrieve the POST would be amazing.
Thanks.

Answer 1

Just put the <form> tag inside your while loop so that each row has its own form for submission. This way, when the form is submitted, you only have 2 posted params (production & price). See below:
<tr>
<td>
<?php echo $row[ 'Title']?>
</td>
<td>
<?php echo $row[ 'BasicTicketPrice'];?>
</td>
<td>
<form method="post" action="choose_performance.php">
<input type="hidden" name="production" value="<?php echo $row['Title'] ?>" />
<input type="hidden" name="price" value="<?php echo $row['BasicTicketPrice'] ?>" />
<input type="submit" name="submit" value="Submit" onclick='alert("Thank you for your selection. Please choose your preferred performance time and date on the next page.");'>
</form>
</td>
</tr>