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我准备把头发扯掉。

基本上，我必须创建一个页面，该页面读取文件目录并创建一个表单，允许您按下每个文件名旁边的 Import 按钮将文件导入数据库。

我像这样扫描目录：

$files=scandir('uploads');//get array of files/directories in uploads
foreach($files as $file) {//loop through the array
    if(!is_dir($file)) {//if not a directory must be a file
        echo $file.'<input type="submit" value="Import CSV File" name="'.$file.'" >';
    }
}

而不是以相同的形式（一种形式）我这样做：

$files=scandir('uploads');//get array of files/directories in uploads
foreach($files as $file) {//loop through the array
    if(!is_dir($file)) {//if not a directory must be a file
        if(isset($_POST[$file])) {//this if never hits 
            echo 'aa';
            exit();
        }
    }
}

正如您在我的评论中看到的那样，当我单击一个按钮导入一个if(isset($_POST[$file]))从未点击过的文件时...

我不知道为什么..

这是页面上的更多代码，以便更好地理解

导入_csv.php：

<?php 
    if(session_id()=='') {
        session_start(); 
    }
    // check if user is not logged in thus is most likely not allowed to view the page or login went wrong
    if(!isset($_SESSION['loggedin'])||$_SESSION['loggedin']===false) {
        echo '<p>You are not logged in. Please <a href="index.php">login</a> and try again.</p>';
        exit();//stops the execution of the php file so we dont show the links below to unauthorized visitors
    }

    $files=scandir('uploads');//get array of files/directories in uploads
    foreach($files as $file) {//loop through the array
        if(!is_dir($file)) {//if not a directory must be a file
            if(isset($_POST[$file])) {
                echo 'aa';
                exit();
            }
        }
    }
?>

<h2 align="center">Import CSV Files:</h2>

<p align="center">
This will allow you to view names of uploaded CSV files and import them into the database.
Below are a list of available files on the server to be imported:
</p>

<form method="post" action="import_csv.php">

<?php

    //Create connection and suppress any errors for now using @
    $con=@mysqli_connect('localhost','jd','1111','my_db');

    // Check connection
    if (mysqli_connect_errno($con)) {
        echo 'Could not connect to database.';
        exit();
    }else {
        //query all tables in db
        $sql = "SHOW TABLES FROM my_db;";
        $result = mysqli_query($con,$sql);


        //loop through results/all tables
        while ($row = mysqli_fetch_row($result)) {
            if($row[0]=='users'&&isset($_SESSION['user_type']) && $_SESSION['user_type']!='admin') {
            }else {
                echo '<input type="checkbox" name="'.$row[0].'" > '.$row[0].'<br></br>';
            }
        }
    }

    $files=scandir('uploads');//get array of files/directories in uploads
    foreach($files as $file) {//loop through the array
        if(!is_dir($file)) {//if not a directory must be a file
            echo $file.'<input type="submit" value="Import CSV File" name="'.$file.'" >';
        }
    }
?>
</form>
4

1 回答 1

3

这是因为文件扩展名问题，文件扩展名总是应该是'.'，但是php它转换为'_'。然后请重写您的代码，例如，

$files=scandir('uploads');//get array of files/directories in uploads
foreach($files as $file) {//loop through the array
    $postName   =   str_replace('.','_',$file);
        if(isset($_POST[$postName])) {//if not a directory must be a file
            echo 'aa';
            exit();
        }
    }

这里 $file 应该像 file.csv，但 PHP REQUEST 数组包含 $_POST[file_csv]

于 2013-05-27T22:07:32.570 回答