La meilleure façon de faire est...
<?php
if( isset($_POST['submit']) )
{
$prefix = $_POST['prefix'];
$firstname = $_POST['firstname'];
$lastname = $_POST['lastname'];
$phone = $_POST['phone'];
$school = $_POST['school'];
$teammate1 = $_POST['teammate1'];
$teammate2 = $_POST['teammate2'];
$games = $_POST['games'];
$division = $_POST['division'];
mysql_connect("localhost", "acsp", "passwordhidden");
mysql_select_db("logicgames");
$order = "INSERT INTO data_logicgames (prefix, firstname, lastname, phone, school, teammate1, teammate2, games, division) VALUES ('$prefix', '$firstname', '$lastname', '$phone', '$school', '$teammate1', '$teammate2', '$games', '$division')";
$result = mysql_query($order);
if ($result) {
echo "<p>Success</p>";
} else {
echo "<p>Failed</p>";
}
}
else
{
echo "<p>Failed</p>";
}
?>