Looping through 2 arrays

[furious5]

I'm building a form on the fly and have 2 variables display[] and id[].

I pass these to another page and want to loop through the 2 arrays and build some SQL statements on the fly.

What I have noticed however is that when I alter the details on the form the one altered on the form is not neccesarrily the one altered when I come to echo my SQL on screen.

I guess its because I'm not looping through the array correct, any one got any ideas?

$count_id = count($id); // Count ID Array

$i = 0; // Set Counter Variables - use same as both arrays are the same size

// Iterate through the arrays and update on the fly
for($i; $i < $count_id; ++$i){

	if($display[$i] == ""){
		$display[$i] = 0;
	}

	$sql = "UPDATE profile SET Display = " .$display[$i]. " WHERE ID = ".$id[$i];
	echo $sql ."<br>";
	$sql_result = mysql_query($sql) or die(mysql_error());

}

echo "Profile options updated";

}

[nemonoman]

You could post what you expected to find and what you actually found -- that would help.

I'd look at this:

for($i; $i < $count_id; ++$i){

most constructions of this sort are:
for($i; $i < $count_id; $i++){

The way you've set it up, I don't think you'll properly loop through all the elements of bot h arrays