get value from MySQL database with PHP

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无人及你
无人及你 2020-12-20 07:51
$from = $_POST[\'from\'];
$to = $_POST[\'to\'];
$message = $_POST[\'message\'];

$query  = \"SELECT * FROM Users WHERE `user_name` = \'$from\' LIMIT 1\";
$result = m         


        
4条回答
  •  一向
    一向 (楼主)
    2020-12-20 08:03

    Try this:

    $from = mysql_real_escape_string($_POST['from']);
    $to = mysql_real_escape_string($_POST['to']);
    $message = mysql_real_escape_string($_POST['message']);
    
    $query  = "SELECT * FROM Users WHERE user_name = '$from' LIMIT 1";
    $result = mysql_query($query) or die(mysql_error());
    
    while($row = mysql_fetch_assoc($result)) {
        $fromID = $row['user_id'];
    }
    

    Also, make sure that:

    • You have connected to the database
    • You do get data from the post, try var_dump with your vars eg var_dump($from)

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