URL パラメータによる DELETE エントリのコードは次のとおりです。
<td><a href="deletecar.php?car_id=<?php echo $row_cars['car_id']; ?>" onclick=" if ( !confirm('Are you sure to DELETE?') ) return false; ">Delete</a></td>
そして、これは URL パラメータの出力です
http://localhost/html/deletecar.php?car_id=17
しかし、car_id = 17をcar_id = 23(他のユーザーの車のリストにある)に変更すると、削除されます
どうすればこれを防ぐことができますか
deletecar.php は以下のようなものです
<?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
{
if (PHP_VERSION < 6) {
$theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
}
$theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);
switch ($theType) {
case "text":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;
case "long":
case "int":
$theValue = ($theValue != "") ? intval($theValue) : "NULL";
break;
case "double":
$theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
break;
case "date":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;
case "defined":
$theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
break;
}
return $theValue;
}
}
if ((isset($_GET['car_id'])) && ($_GET['car_id'] != "") && (isset($_SESSION['MM_Username']))) {
$deleteSQL = sprintf("DELETE FROM cars WHERE car_id=%s",
GetSQLValueString($_GET['car_id'], "int"));
mysql_select_db($database_conn, $conn);
$Result1 = mysql_query($deleteSQL, $conn) or die(mysql_error());
$deleteGoTo = "myaccount.php";
if (isset($_SERVER['QUERY_STRING'])) {
$deleteGoTo .= (strpos($deleteGoTo, '?')) ? "&" : "?";
$deleteGoTo .= $_SERVER['QUERY_STRING'];
}
header(sprintf("Location: %s", $deleteGoTo));
}
?>
そして、これはデータベース内の私のテーブルです
INSERT INTO `car` (`car_id`, `c_id`, `c_brand`, `c_model`, `c_model_nd`, `c_model_year`, `c_color`, `c_capacity`, `c_owner`, `c_statu`, `c_show`) VALUES
(16, '34DA1593', 'Volkswagen', 'Volt', '313 CDI', 2006, 'Beyaz', '', 18, 'yakamozturizm', 'Boş', 0),
(17, '34BC5897', 'Mercedes', 'Sprinter', '313CDI', 2006, 'Gri', '', 14, 'PcRestorer', 'Boş', 0),
(18, '34DBC145', 'Volkswagen', 'Volt', '213 CDI', 2013, 'Beyaz', '', 16, 'PcRestorer', 'Boş', 0);
編集....
私は自分のコードをそのように変更しました
$colname_delete = "-1";
if (isset($_GET['car_id'])) {
$colname_delete = $_GET['car_id'];
}
$owner_delete = "-1";
if (isset($_SESSION['MM_Username'])) {
$owner_delete = $_SESSION['MM_Username'];
}
if ((isset($_GET['car_id'])) && ($_GET['car_id'] != "")) {
$deleteSQL = sprintf("DELETE FROM minibusler WHERE car_id = %s AND c_owner =%s",
GetSQLValueString($colname_delete, "int"),
GetSQLValueString($owner_delete, "text"));
mysql_select_db($database_conn, $conn);
$Result1 = mysql_query($deleteSQL, $conn) or die(mysql_error());
$deleteGoTo = "myaccount.php";
if (isset($_SERVER['QUERY_STRING'])) {
$deleteGoTo .= (strpos($deleteGoTo, '?')) ? "&" : "?";
$deleteGoTo .= $_SERVER['QUERY_STRING'];
}
header(sprintf("Location: %s", $deleteGoTo));
}
それは機能しているように見えますが、それを行う安全な方法だと思いますか
ご協力いただきありがとうございます