php - Posting drop down menu value to mysql cell
Alrighty, so i'm quite a beginner when it comes to PHP and MySQL programming so the problem might be quite noobish but anyway here's my situation. I've got a content page with a dropdown menu that should give me a $_POST value (the options are taken from a database column): here's the code for that
<link href="../css/pagestyle.css" rel="stylesheet" type="text/css" />
<?php
include("../panel/config.php");
$db = mysqli_connect($server, $username, $password, $database);
if(mysqli_connect_errno()) { //if connection database fails
echo("Connection not established " .
mysqli_connect_error($db) . "</p>");
}
$query = "SELECT username FROM users WHERE email = '1' ORDER BY username ASC";
$result = mysqli_query($db,$query);
if (!$result) {
echo("Error, the query could not be executed: " .
mysqli_error($db) . "</p>");
mysqli_close($db);
}
echo "
<form action='myscript' method='post'>
<select name='test'>
<option value = 'none' selected = 'selected' >
`Select a DJ:` </option>";
while ($row = mysqli_fetch_assoc($result)){
echo '<option value="' . $row['username'] . '">' . $row['username']. '</option>';
}
echo"
<input type='submit' value='submit' name='submit'>
</select>
</form> ";
?>
Quite a bit of code for such a small function i know. Anyway the drop down menu gets its options from a database column and that works fine, now when i press the submit button, it runs another php page that's coded like this:
<link href="../css/pagestyle.css" rel="stylesheet" type="text/css" /><html>
<?php
include("../panel/config.php");
$con = mysqli_connect($server, $username, $password, $database);
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$id = $_POST['test'];
$order = "UPDATE `habboxli_system`.`users` SET `points` = points+1 WHERE `users`.`username` ='$id'";
mysql_query($order);
echo "name is $id";
mysqli_close($con);
echo "Vote posted!";
?>
This code should take the value that was chosen in the drop down menu and use it to update a specific cell in the database, i signed it to a variable called $id just for testing purposes but the value seems to be blank, so from that i presume that the drop down menu didn't return a value when it navigated from the original page (www.mywebsite.com/#/option.php) to the myscript.php page (www.mywebsite.com/#/myscript.php). Any help on how to get this to work would be much appreciated.
Answer
Solution:
As was said in the comments, you are using the mysql_query function mixed in with the mysqli functions.
I got the code to work for me by changing
To:
You can also debug what was passed to the script by simply printing the $_POST array: