php / mysql UPDATE其中id = blah

Question

i have a site where you can send greeting messages via php to a mysql server, and an admin login page. In the admin login page, it shows all of the messages with a status either pending, rejected or accepted with the buttons reject and accept next to each message. Currently, whenever I hit "accept" or "reject" ALL of the messages become rejected or accepted in the database. I'd like to have the buttons call the script with a parameter which is the id of the message they're accepting/rejecting but I honestly don't know the proper syntax. Any help would be greatly appreciated.

$query = "SELECT name, location, message, status FROM messages ORDER by status ";
if ($query_run = mysql_query($query)) 
{
    while ($query_row = mysql_fetch_assoc($query_run)) 
    {
        $name = $query_row['name'];
        $location = $query_row['location'];
        $message = $query_row['message'];
        $status = $query_row['status'];    

        echo '<form method="POST" action="login.php">';
        echo 'From: '.$name.'<br>Location: '.$location.'<br>Status: '.$status.'<br>Message: '.$message.'<br><br>';
?>

<input type="submit" value="Approve" name="accept">
<input type="submit" value="Reject" name="reject"></form>

<?php

if (isset($_POST['accept'])) 
{
    echo 'Accepted!';
    $updateAccept = "UPDATE messages SET status = 'a'"; 
    mysql_query($updateAccept);   
};

if (isset($_POST['reject'])) 
{
    echo 'Rejected!';
    $updateAccept = "UPDATE messages SET status = 'r'"; 
    mysql_query($updateAccept);
}

Answer 1

Bind a hidden field with each submit button like this

<form method="POST">
    <input type="submit" value="Whatever" name="trigger_update" />
    <input type="hidden" name="id_to_be_updated" value="<?php echo 'pass your id here'; ?>" />
</form>

<?php
   if(isset($_POST['trigger_update'])) {
      //Do sanitization according to your needs
      mysqli_query($connection, "UPDATE tbl_name SET column_name = 'whatever' WHERE id = {$_POST['id_to_be_updated']}");
   }
?>

Answer 2

您只需要在UPDATE语句中添加WHERE子句：

 $updateAccept = "UPDATE messages SET status = 'a' WHERE id = '$id'";