Can't save table information to MySQL - php

Question

I have been working with this code for a whole day but still can't understand where I made a mistake. So basically I want to edit whole mysql table.
I'm easily fetching it, and I need to change some of the data and save it again to the table. But everytime I'm trying to save it - everywhere getting "Array" and nothing more.
It's look like the code is not seeing that I'm making changes there.
Also sometimes when I'm changing bits, only last raw was saving and duplicating everywhere after.
<form method="POST" action="index.php">
<table><thead><tr><th>ID</th><th>Name</th><th>Live</th><th>AQ</th><th>Up</th><th>Down</th><th>Cptch</th><th>VID</th><th>UpOrDo</th><th>UTool</th><th>STool</th></tr><thead><tbody>
<?php
while ($row = $result->fetch_array()) {
echo "<tr><td><input size='1' name='id[]' value='".$row["ID"]."' readonly></td><td>".$row["Name"]."</td><td>".$row["Live"]."</td><td>".$row["AccQuantity"]."</td><td>".$row["Upvote"]."</td><td>".$row["Downvote"]."</td><td>".$row["Captcha"]."</td><td><input name='VoteID[]' type='text' size='5' value='".$row["VoteID"]."'></td><td><input name='UpOrDown[]' type='text' size='5' value='".$row["UpOrDown"]."'></td><td><input name='UpvoteTool[]' type='text' size='5' value='".$row["UpvoteTool"]."'></td><td><input name='SignupTool[]' type='text' size='5' value='".$row["SignupTool"]."'></td></tr>";
}
?>
</tbody>
</table>
<input type='submit' name='update' value='UPDATE' />
</form>
</body>
</html>
<?php
if(isset($_POST['update'])){
$ID = $_POST['id'];
$VoteID = $_POST['VoteID'];
$UpOrDown = $_POST['UpOrDown'];
$UpvoteTool = $_POST['UpvoteTool'];
$SignupTool = $_POST['SignupTool'];
for($i = 1; $i < 7; $i++) {
$user_id = $ID[$i];
$sql = "UPDATE Servers SET `VoteID`='".$VoteID."', `UpOrDown`='".$UpOrDown."', `UpvoteTool`='".$UpvoteTool."', `SignupTool`='".$SignupTool."' WHERE `ID`=".$user_id."";
echo $sql."<br>";
}
}

Answer 1

It seems you are not running the query. Also you are not picking out the data from the array. I would do this:
for($i = 1; $i < 7; $i++) {
$user_id = $ID[$i];
$_VoteID = $VoteID[$i];
$_UpOrDown= $UpOrDown[$i];
$_UpvoteTool= $UpvoteTool[$i];
$_SignupTool= $SignupTool[$i];
$sql = "UPDATE Servers SET `VoteID`='".$_VoteID."', `UpOrDown`='".$_UpOrDown."', `UpvoteTool`='".$_UpvoteTool."', `SignupTool`='".$_SignupTool."' WHERE `ID`=".$user_id."";
mysqli_query($sql);//or whatever way you are runing your query.
echo $sql."<br>";
}