Undifined offset: 1

<?

function gebruikerinfo($id, $veld)
{
	if((bestaat($id)) && (isset($id)) && (is_numeric($id)) && (isset($veld)) && (!is_numeric($veld)))
	{
		$sql = mysql_query("SELECT * FROM tblgebruikers WHERE id = '".$id."'")or die(mysql_error());
		$assoc = mysql_fetch_assoc($sql);
		return $assoc[$veld];
	}
	else
	{
		return "No Record";
	}	
}
?>

<?
 
function gebruikerinfo($id, $veld)
{
	if((bestaat($id)) && (isset($id)) && (is_numeric($id)) && (isset($veld)) && (!is_numeric($veld)))
	{
		$sql = mysql_query("SELECT * FROM tblgebruikers WHERE id = '".$id."'")or die(mysql_error());
		$assoc = mysql_fetch_assoc($sql);
		return $assoc[$veld];
	}
	else
	{
		return "No Record";
	}	
}
?>

De fout Undefined offset: 1 trad op in Functions.php in regel 217

De fout Undefined offset: 1 trad op in Functions.php in regel 217