Hi,

I knew how to make insert into in sql statement as well as delete. But never learned how to update the record on mysql database and php page. Could anyone please give some tips to make the update.php page? Can I tweak this event_add.php page to be event_update.php page? Any tips would be much appreciated!
This is my event_add.php page
PHP Code:
<?
require_once("includes/config.php");

session_start();

$db_connection mysql_connect ($DBHost$DBUser$DBPass) OR die (mysql_error());  
$db_select mysql_select_db ($DBName) or die (mysql_error());

if(
$use_auth)
{
    if(!isset(
$_SESSION['admin_id']))
    {
        if ((!isset(
$_POST['USER'])) AND (!isset($_POST['PASS']))) {
        
?>
        <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
        <html>
        <head>
        <title><?php include("titles.php"); ?> - Add Event</title>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <link href="images/cal.css" rel="stylesheet" type="text/css">
        </head>
        
        <body>
        <br><br>
        <form name="form1" method="post" action="event_add.php">
          
            <div class=""><span class="">Username:</span><input name="USER" type="text" id="USER"></div>
            <div class=""><span class="">Password:</span><input name="PASS" type="password" id="PASS"></div>
            <div class=""><span class=""></span><input type="submit" name="Submit" value=" login"></div>
            
        <input type="hidden" name="day" id="day" value="<? echo $_GET['day']; ?>">
        <input type="hidden" name="month" id="month" value="<? echo $_GET['month']; ?>">
        <input type="hidden" name="year" id="year" value="<? echo $_GET['year']; ?>">
        <input type="hidden" name="id" id="id" value="<? echo $_GET['id']; ?>">
        </form>
        </body>
        </html>
        <?
            
exit;
        } 
        ELSE
        {
            
$query "SELECT admin_id FROM ".$TBL_PR."admins WHERE admin_username='".addslashes($_POST['USER'])."' AND admin_password='".addslashes(md5($_POST['PASS']))."' LIMIT 1";
            
$query_result mysql_query ($query);
            while (
$info mysql_fetch_array($query_result))
            {
                
$admin_id $info['admin_id'];
            }
        
            IF(isset(
$admin_id))
            {
                
$_SESSION['admin_id'] = $admin_id;
            }
            ELSE
            {
                
header("Location: event_add.php?day=".$_POST['day']."&month=".$_POST['month']."&year=".$_POST['year']."&id=" $_POST['id']);
                exit;
            }
        }
    }
}

IF(isset(
$_POST['submit']))
{
    
$db_table $TBL_PR "events";
    
    
$_POST['description'] = substr($_POST['description'],0,1500);
    
$_POST['title'] = substr($_POST['title'],0,100);
    
$_POST['pic'] = substr($_POST['pic'],0,255);
    
$_POST['purl'] = substr($_POST['purl'],0,255);
    
$_POST['vurl'] = substr($_POST['vurl'],0,255);

    
mysql_query("INSERT INTO $db_table ( `event_id` , `event_day` , `event_month` , `event_year` , `event_time` , `event_title` , `event_desc`, `event_pic`,`event_purl`,`event_vurl` ) VALUES ('', '".addslashes($_POST['day'])."', '".addslashes($_POST['month'])."', '".addslashes($_POST['year'])."', '".addslashes($_POST['hour'].":".$_POST['minute'])."', '".addslashes($_POST['title'])."', '".addslashes($_POST['description'])."','".addslashes($_POST['pic'])."','".addslashes($_POST['purl'])."','".addslashes($_POST['vurl'])."')");
    
$_POST['month'] = $_POST['month'] + 1;
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title><?php include("titles.php");?></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script language='javascript' type="text/javascript">
<!--
 function redirect_to(where, closewin)
 {
     opener.location= 'index.php?' + where;
     
     if (closewin == 1)
     {
         self.close();
     }
 }
  //-->
 </script>
</head>
<body onLoad="javascript:redirect_to('month=<? echo $_POST['month'].'&year='.$_POST['year']; ?>',1);">
</body>
</html>
<?
}
ELSE 
{
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title><?php include("titles.php");?></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link href="images/cal.css" rel="stylesheet" type="text/css">
</head>
<body>
<div class="eventFormControl">
<form name="form1" method="post" action="">
      <div class="eventDateControl"><span class="addevent">Event Date</span><br> 
        <span class="addeventextrainfo">(MM/DD/YY)</span></div>
      <div class="formMenuControl"> 
        <select name="month" id="month">
           <option value="12" <? IF($_GET['month'] == "12"){ echo "selected"; } ?>>12</option>
        </select> <select name="day" id="day">
          <option value="1" <? IF($_GET['day'] == "1"){ echo "selected"; } ?>>01</option>
          <option value="2" <? IF($_GET['day'] == "2"){ echo "selected"; } ?>>02</option>
          <option value="3" <? IF($_GET['day'] == "3"){ echo "selected"; } ?>>03</option>
          <option value="4" <? IF($_GET['day'] == "4"){ echo "selected"; } ?>>04</option>
          <option value="5" <? IF($_GET['day'] == "5"){ echo "selected"; } ?>>05</option>
          <option value="6" <? IF($_GET['day'] == "6"){ echo "selected"; } ?>>06</option>
          <option value="7" <? IF($_GET['day'] == "7"){ echo "selected"; } ?>>07</option>
          <option value="8" <? IF($_GET['day'] == "8"){ echo "selected"; } ?>>08</option>
          <option value="9" <? IF($_GET['day'] == "9"){ echo "selected"; } ?>>09</option>
          <option value="10" <? IF($_GET['day'] == "10"){ echo "selected"; } ?>>10</option>
          <option value="11" <? IF($_GET['day'] == "11"){ echo "selected"; } ?>>11</option>
          <option value="12" <? IF($_GET['day'] == "12"){ echo "selected"; } ?>>12</option>
          <option value="13" <? IF($_GET['day'] == "13"){ echo "selected"; } ?>>13</option>
          <option value="14" <? IF($_GET['day'] == "14"){ echo "selected"; } ?>>14</option>
          <option value="15" <? IF($_GET['day'] == "15"){ echo "selected"; } ?>>15</option>
          <option value="16" <? IF($_GET['day'] == "16"){ echo "selected"; } ?>>16</option>
          <option value="17" <? IF($_GET['day'] == "17"){ echo "selected"; } ?>>17</option>
          <option value="18" <? IF($_GET['day'] == "18"){ echo "selected"; } ?>>18</option>
          <option value="19" <? IF($_GET['day'] == "19"){ echo "selected"; } ?>>19</option>
          <option value="20" <? IF($_GET['day'] == "20"){ echo "selected"; } ?>>20</option>
          <option value="21" <? IF($_GET['day'] == "21"){ echo "selected"; } ?>>21</option>
          <option value="22" <? IF($_GET['day'] == "22"){ echo "selected"; } ?>>22</option>
          <option value="23" <? IF($_GET['day'] == "23"){ echo "selected"; } ?>>23</option>
          <option value="24" <? IF($_GET['day'] == "24"){ echo "selected"; } ?>>24</option>
          <option value="25" <? IF($_GET['day'] == "25"){ echo "selected"; } ?>>25</option>
         </select>
         <select name="year" id="year">
          <option value="2011" <? IF($_GET['year'] == "2011"){ echo "selected"; } ?>>2011</option>
        </select>
    </div>
    <div class="dataEntryControl"> 
      <div class="tCtrl"><div class="addevent">Event Title:</div><input name="title" type="text" id="title" size="60"></div>
      <div class="dCtrl"><div class="addevent">Event Description:</div><textarea name="description" cols="52" rows="18" id="description"></textarea></div>
      <div class="pCtrl"><div class="addevent">Event Photo:</div><input name="pic" type="text" id="pic" size="60"></div>
      <div class="plCtrl"><div class="addevent">Photo:</div><input name="purl" type="text" id="purl" size="60"></div>
      <div class="vlCtrl"><div class="addevent">Video:</div><input name="vurl" type="text" id="vurl" size="60"></div><br>
      <div class=""><input name="submit" type="submit" id="submit" value="Add Event"></div>
    </div>
</form>
</div>
</body>
</html>
<? 

?>