Match array values against db data

[zzz]

I need to create an array and then run it against values in my db table to see if I get any results in the database corresponding to the values in my array. Also I would like to store that array in another table for the same user to run the query next time.

Having difficulties figuring all this out. Arrays historically cause me a headache...

I have the following snippet from elesewhere, it looks like I could do something very similar, right?

if ($_POST['tID']) {
	$ser_tID = serialize($_POST['tID']);
	$_SESSION['ser_tID'] = $ser_tID;
}

$unser_tID = unserialize($_SESSION['ser_tID']);

if (!get_magic_quotes_gpc()) {  

  foreach($unser_tID as $key => $value) {
     ${$key} = addslashes($value);  

  }  

} else {
  foreach($unser_tID as $key => $value) {
     ${$key} = addslashes($value);
  }
}

$in = array();
foreach ($unser_tID as $box) $in[] = $box;
$in = implode(',', $in); 

$query = "SELECT * FROM t1 WHERE toc_id IN ( $in )"; 

$my_matches = $db->get_results($query);

foreach ($my_matches as $match) {
	// get my matches
}

Am I being realistic here?

[rane500]

Unless IN was changed in mySQL 5 the above query is building a list of columns in a table to search with the value of toc_id. Do you need to search multiple columns at once, or are you just wanting to build an array of things to run against a single column and return any rows that match any value in the array?