UPDATE MySQL错误

Question

我有几行代码：

$sql = mysql_query("UPDATE user SET txnid='" . mysql_real_escape_string($data['txn_id']) . "', 
    payment_amount='" . mysql_real_escape_string($data['payment_amount']) . "' , 
    payment_status='" . mysql_real_escape_string($data['payment_status']) . "', 
    itemid='" . mysql_real_escape_string($data['item_number']) . "', 
    createdtime='" . mysql_real_escape_string(date("Y-m-d H:i:s")) . "' WHERE id='" . mysql_real_escape_string($_COOKIE["buy_user"]) . "'"; 

    $result = mysql_query($sql); 

我试图更新ID 117

我知道我必须使用UPDATE，但我不能这样做。

帮助我

Answer 1

奇怪的是，你打电话mysql_query功能的两倍。

我建议你遵循这个模式：

# set a variable to contain just a string, the SQL text you want to execute 
$sql = "UPDATE ... "; 

# the SQL text is conveniently available for debugging/logging 
echo $sql; 

# execute the SQL 
$result = mysql_query($sql);