PhP将CSV上载到MySQL，但不存在复杂的决斗

我试图创建一个脚本，从csv文件上传电子邮件地址，但在插入之前还要检查该地址是否已经存在于两个不同的表中。 我有一个完美的查询：

INSERT INTO list_email (fname, lname, email_addr)
SELECT ins.* FROM ( SELECT 'bob' AS fname,
'schmoe' AS lname,
'bogus@bogus.com' AS email_addr
FROM dual UNION ALL
SELECT 'mary', 'lamb', 'hoe@me.com'
FROM dual ) AS ins WHERE NOT EXISTS
( SELECT 1
FROM list_email AS e
WHERE e.email_addr = ins.email_addr
) AND NOT EXISTS
( SELECT 1
FROM list_no_email AS ne
WHERE ne.email_addr = ins.email_addr );

但由于这是一个文件上传脚本，原因显而易见bogus@bogus.com就是不管用。我需要比较“每个”入站记录，而不仅仅是一条。因此，list\u email.email\u addr列必须绑定$email\u addr（如果它不存在） 我似乎无法访问$_FILES['userfile']键来访问数据，比如$email\u addr来进行比较。$u文件的var_dump（）是否显示test.csv，并将“userfile”作为键，但我无法进入其中$_这篇文章有我的行名，效果很好

  <form enctype="multipart/form-data" method="POST">
        <p> Give a unique name for your campaign </p>
        <input name="row_name" type="text">
        <br/>
        <input name="userfile" type="file">
        <br/>
        <input type="submit" value="Upload">

  </form>
<?php
$dsn = "mysql:host=$host;port=$port;dbname=$dbname"; //Data Source Name = Mysql
$db = new PDO($dsn, $db_username, $db_password); //Connect to DB
//var_dump($_FILES);
//var_dump($_POST);
if (isset($_POST['userfile']) && isset($_POST['row_name'])){
        $insert = array(NULL, $data[0]." ".$data[1], $data[0],$data[1],$data[2]);
        var_dump($insert);
        $do = $db->prepare(
                "INSERT INTO list_email(list_name, fname, lname, email_addr)
                SELECT ins.*
                FROM(
                 SELECT $data[1] AS fname,
                 $lname AS lname,
                 $data[3] AS email_addr
                 FROM dual
                 UNION ALL
                 SELECT $data[1], $data[2], $data[3]
                 FROM dual
                ) AS ins
                WHERE NOT EXISTS(
                 SELECT 1
                 FROM list_email AS e
                 WHERE e.email_addr = ins.email_addr
                )
                AND NOT EXISTS(
                 SELECT 1
                 FROM list_no_email AS ne
                 WHERE ne.email_addr = ins.email_addr
                )"
                );
        $csv_file = $_FILES['userfile']['tmp_name'];
        // exit if file fail
        if ( ! is_file( $csv_file ) )
                exit('File not found.');
        if (($handle = fopen($csv_file, "r")) !== FALSE) {
        while (($data = fgetcsv($handle)) !== FALSE) {
                //var_dump($insert);
                $do->execute($insert);
            }
            fclose($handle);
        }
}
exit( "Complete!" );
?>
</body>
</html>

**************表格********************

    Notice: Undefined offset: 0 in /home/wemail1/www/pages/campaign-build.inc.php on line 35

Notice: Undefined offset: 1 in /home/wemail1/www/pages/campaign-build.inc.php on line 35

NULL array(1) { ["userfile"]=> array(5) { ["name"]=> string(9) "test1.csv"
+["type"]=> string(24) "application/vnd.ms-excel" ["tmp_name"]=> string(14)
+"/tmp/php5k0ppx" ["error"]=> int(0) ["size"]=> int(76) } }
> no values ^^
> var_dump($_FILES);

mysql> desc list_email;
+------------+--------------+------+-----+---------+----------------+
| Field      | Type         | Null | Key | Default | Extra          |
+------------+--------------+------+-----+---------+----------------+
| id         | int(11)      | NO   | PRI | NULL    | auto_increment |
| list_name  | varchar(55)  | YES  |     | NULL    |                |
| fname      | char(50)     | YES  |     | NULL    |                |
| lname      | char(50)     | YES  |     | NULL    |                |
| email_addr | varchar(150) | YES  |     | NULL    |                |
+------------+--------------+------+-----+---------+----------------+
5 rows in set (0.00 sec)

mysql> desc list_no_email;
+------------+--------------+------+-----+-------------------+-----------------------------+
| Field      | Type         | Null | Key | Default           | Extra                       |
+------------+--------------+------+-----+-------------------+-----------------------------+
| id         | int(11)      | NO   | PRI | NULL              | auto_increment              |
| date_in    | timestamp    | NO   |     | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP |
| email_addr | varchar(150) | YES  |     | NULL              |                             |
+------------+--------------+------+-----+-------------------+-----------------------------+
3 rows in set (0.00 sec)




http://stackoverflow.com/questions/18584541/mysql-insert-into-with-dual-condition-for-if-not-exist

---

所以我稍微整理了一下你的代码。尺寸标注错误是由调用

$\u文件[0]

、

$\u文件[1]

和

$\u文件[2]

引起的。这里没有值，因此为空

此外，您的代码有一堆根本不需要的东西

另外：看看准备好的语句以及如何在那里填充变量

让我解释一下：

<?php
$dsn = "mysql:host=$host;port=$port;dbname=$dbname"; //Data Source Name = Mysql
$db = new PDO($dsn, $db_username, $db_password); //Connect to DB
if (isset($_POST['userfile']) && isset($_POST('row_name']))){
    //$rowname = $_POST['row_name']; (do you need this? You never call this anywhere below)

    //Dont know why this is here
    //$fname = $_FILES[0]; 
    //$lname = $_FILES[1]; 
    //$post_addr = $_FILES[2];

    //PDO does not work with $var, instead use :var and fill the var before executing the query
    $do = $db->prepare(
            "INSERT INTO list_email(list_name, fname, lname, email_addr)
            SELECT ins.*
            FROM(
             SELECT :fname AS fname,
             :lname AS lname,
             :post_addr AS email_addr
             FROM dual
             UNION ALL
             SELECT :fname, :lname, :post_addr
             FROM dual
            ) AS ins
            WHERE NOT EXISTS(
             SELECT 1
             FROM list_email AS e
             WHERE e.email_addr = ins.email_addr
            )
            AND NOT EXISTS(
             SELECT 1
             FROM list_no_email AS ne
             WHERE ne.email_addr = ins.email_addr
            )"
            );

            $do->bindParam(':fname', $fname);
            $do->bindParam(':lname', $lname);
            $do->bindParam(':post_addr', $post_addr);

    $csv_file = $_FILES['userfile']['tmp_name'];
    // exit if file fail
    if ( ! is_file( $csv_file ) )
            exit('File not found.'); //exit = bad practise, use proper error handling
    if (($handle = fopen($csv_file, "r")) !== FALSE) {
    while (($data = fgetcsv($handle)) !== FALSE) 
    {
            //$insert = array(NULL, $data[0]." ".$data[1], $data[0],$data[1],$data[2]); (what is this? what does it do?)

            //Fill the variables needed for the query
            $fname = "your desired value";
            $lname = "your desired value";
            $post_addr = "your desired value";
            //Execute the query
            $do->execute();
    }
        fclose($handle);
    }
}
else {
 print "Something went wrong while trying IsSet";
}
?>

这里需要你的值，显然，这些值来自你读到的那行。 因此，在示例中，这将是：

$fname = $data[0];
$lname = $data[1];
$post_addr = $data[2];

除此之外，SQL查询也会失败。 您希望将数据插入您的

列表\u电子邮件
中，请求4列，但只传递3变量

我也不明白为什么要从
dual

编辑

正如我所说的，您的SQL查询是错误的

我已经更新了一点。
列表名称来自哪里？

我现在在更新的查询中添加了缺少的\u值：

INSERT INTO list_email(list_name, fname, lname, email_addr)
            SELECT ins.*
            FROM(

SELECT ins.*
FROM
(
SELECT 
    'MISSING VALUE' as MISSING_VALUE
    :fname AS fname,
    :lname AS lname,
    :post_addr AS email_addr
FROM dual
) as ins 
WHERE 
NOT EXISTS(
    SELECT 1 
    FROM list_email AS e 
    WHERE e.email_addr = ins.email_addr)
AND 
NOT EXISTS(
    SELECT 1
    FROM list_no_email AS ne
    WHERE ne.email_addr = ins.email_addr))

$fname=$\u文件[0]$lname=$\u文件[1]$post_addr=$_文件[2]
提交文件[0]
的确切位置是哪里？（1和2相同）@Tikkes我从另一个开始就验证了它，我得到了同样的错误。if（是_数组（$_文件['userfile']））{，我还尝试将其作为附加参数传递，但也失败了。
$\u文件
没有键
0
、
1
或
2
。它使用
tmp\u名称
，…我只是查看了您在代码中所做的编辑，不知道您是否阅读了我的答案。
$data
在准备好的语句中不起作用。Che再次勾选我的答案并仔细阅读，因为您所做的仍然是错误的。@Tikkes我如何访问tmp_name中的值？按键？非常感谢，尽管在进行了您建议的更改后，我没有收到任何错误，但没有数据进入数据库。我更新了上面的代码以反映更改。这是因为您的SQL查询是错误的仍然错误。您希望插入4个值，但从您的选择中只得到3个值。我已更新了代码，下面可以找到SQL查询，请查看缺少的值。如果这有帮助，请接受我的回答。此查询是有效的，并且执行它应该执行的操作，并测试了'but'而不是静态数据，我需要变量来适应上载的file。您所指的“缺失”是我试图从发布的文件或$\u文件[]中检索的内容，该值包含什么？文件名？其他内容？您的查询一开始需要4列，但只返回3个变量。这（来自粘贴）您知道，这似乎是固定的。此外，您在“从双选择”上执行了一个根本不必要的
联合操作。什么仍然不起作用？您希望从
$\u文件中得到什么来放入您的数据库？
INSERT INTO list_email(list_name, fname, lname, email_addr)
            SELECT ins.*
            FROM(

SELECT ins.*
FROM
(
SELECT 
    'MISSING VALUE' as MISSING_VALUE
    :fname AS fname,
    :lname AS lname,
    :post_addr AS email_addr
FROM dual
) as ins 
WHERE 
NOT EXISTS(
    SELECT 1 
    FROM list_email AS e 
    WHERE e.email_addr = ins.email_addr)
AND 
NOT EXISTS(
    SELECT 1
    FROM list_no_email AS ne
    WHERE ne.email_addr = ins.email_addr))