Question

我正在将CSV文件导入我的管理区域，我想将文件添加到我的数据库中。我的import.php的PHP代码是：

<?php 

include_once('../include/connection.php');

if ($_FILES[csv][size] > 0) {

    //get the csv file
    $file = $_FILES[csv][tmp_name];
    $handle = fopen($file,"r");

    //loop through the csv file and insert into database
    do {
        if ($data[0]) {
             mysql_query("INSERT INTO mobi(promo_title, promo_content, promo_image, promo_link, promo_cat, promo_name) VALUES
                (
                    '".addslashes($data[0])."',
                    '".addslashes($data[1])."',
                    '".addslashes($data[2])."',
                    '".addslashes($data[3])."',
                    '".addslashes($data[4])."',
                    '".addslashes($data[5])."'
                )
            ");
        }
    } while ($data = fgetcsv($handle,1000,",","'"));
    //

    //redirect
    header('Location: import.php?success=1'); die;

}

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Import a CSV File with PHP & MySQL</title>
</head>

<body>

<?php if (!empty($_GET[success])) { echo "<b>Your file has been imported.</b><br><br>"; } //generic success notice ?>

<form action="" method="post" enctype="multipart/form-data" name="form1" id="form1">
  Choose your file: <br />
  <input name="csv" type="file" id="csv" />
  <input type="submit" name="Submit" value="Submit" />
</form>

</body>
</html>

代码显示正确，但是当我选择我的测试文件并点击提交时，我遇到了这些问题：

Warning: mysql_query() [function.mysql-query]: Access denied for user 'root'@'localhost' (using password: NO) in admin/import.php on line 23

Warning: mysql_query() [function.mysql-query]: A link to the server could not be established in admin/import.php on line 23

Warning: mysql_query() [function.mysql-query]: Access denied for user 'root'@'localhost' (using password: NO) in admin/import.php on line 23

Warning: mysql_query() [function.mysql-query]: A link to the server could not be established in admin/import.php on line 23

Warning: mysql_query() [function.mysql-query]: Access denied for user 'root'@'localhost' (using password: NO) in admin/import.php on line 23

Warning: mysql_query() [function.mysql-query]: A link to the server could not be established in admin/import.php on line 23

Warning: mysql_query() [function.mysql-query]: Access denied for user 'root'@'localhost' (using password: NO) in admin/import.php on line 23

Warning: mysql_query() [function.mysql-query]: A link to the server could not be established in admin/import.php on line 23

Warning: Cannot modify header information - headers already sent by (output started at admin/import.php:1) in admin/import.php on line 29

谁能看到原因？

我的connection.php代码是这样的：

<?php

try {
$pdo = new PDO('mysql:host=localhost;dbname=*********', '*********', '*********');
}catch (PDOException $e){
  exit('Database Error.');
}

?>

请注意我的其他页面如add.php，delete.php，edit.php等都使用相同的include_once for connection.php

因此我的数据库连接没有任何意义。

谢谢你。

Answer 1

您正在使用PDO建立数据库连接。但$pdo实例已不再使用了！

要执行SQL语句，需要像$pdo->query("INSERT INTO mobi ...")

一样使用

相反，您正在使用mysql_query发送MySQL查询。所以你得到这些警告：

Access denied for user 'root'@'localhost' (using password: NO)

A link to the server could not be established

另外，请确保在header()功能之前没有输出任何字符串...以删除此警告：headers already sent。

Answer 2

您的数据库凭据可能有误。检查服务器是否可访问。

并且已经发送的标题信息是由php代码之前的空格

引起的

 <?php 

include_once('../include/connection.php');

带

<?php 

include_once('../include/connection.php');

Answer 3

您的数据库凭据不正确。您还应该考虑使用mysqli面向对象的数据库方法，并且应该使用mysqli_real_escape_string而不是addslashes。标头错误是抛出mysql错误并输出到页面的结果。

Answer 4

您是否尝试使用php加载文件，以便不必循环播放文件？

我建议使用require_once代替include_once。 __DIR__在包含路径前面总是一件好事。这样你可以说出文件来自当前文件的位置，而不是当前正在运行的脚本。

它看起来像这样：

<?php
require_once __DIR__ . '/../include/connection.php';

if ($_FILES[csv][size] > 0) {

    //get the csv file
    $file = $_FILES[csv][tmp_name];

    mysql_query("
        LOAD DATA LOW_PRIORITY LOCAL 
        INFILE '$file'
        REPLACE INTO TABLE mobi 
        FIELDS TERMINATED BY ',' 
        OPTIONALLY ENCLOSED BY '\"' 
        ESCAPED BY '\"' 
        LINES TERMINATED BY '\n' 
        (promo_title, promo_content, promo_image, promo_link, promo_cat, promo_name)
        SET promo_name = TRIM(BOTH '\r' FROM promo_name);
    ");
}

通过PHP将CSV导入MYSQL

4 个答案: