Question

我有一个php文件，可以将jpegs和png等图像上传到名为uploads的文件夹中，该文件夹存储在apache服务器上，与php文件位于同一位置。

我已经检查了HTML和PHP的代码，两者似乎都很好，但是每当我尝试上传文件时，我总会收到错误消息并且文件没有上传。

如果有比我更多经验的人可以查看我的代码并告诉我它为什么会以这种方式表现，我将不胜感激。

以下是HTML表单：

<!--
To change this template, choose Tools | Templates
and open the template in the editor.
-->
<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Upload Your File</title>
</head>
<body>
    <?php
    // put your code here
    ?>

    <form enctype="multipart/form-data" method="post" action="fileHandler.php">
        Select File:
        <input name="uploaded_file" type="file"/><br/>
        <input type="submit" value="Upload"/>
    </form>
</body>
</html>

这是提交表单时执行的PHP文件：

<?php

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 * PHP file that uploads files and handles any errors that may occur
 * when the file is being uploaded. Then places that file into the 
 * "uploads" directory. File cannot work is no "uploads" directory is created in the
 * same directory as the function. 
 */

$fileName = $_FILES["uploaded_file"]["name"];//the files name takes from the HTML form
$fileTmpLoc = $_FILES["uploaded_file"]["tmp_name"];//file in the PHP tmp folder
$fileType = $_FILES["uploaded_file"]["type"];//the type of file 
$fileSize = $_FILES["uploaded_file"]["size"];//file size in bytes
$fileErrorMsg = $FILES["uploaded_file"]["error"];//0 for false and 1 for true
$target_path = "uploads/" . basename( $_FILES["uploaded_file"]["name"]); 

echo "file name: $fileName </br> temp file location: $fileTmpLoc<br/> file type: $fileType<br/> file size: $fileSize<br/> file upload target: $target_path<br/> file error msg: $fileErrorMsg<br/>";

//START PHP Image Upload Error Handling---------------------------------------------------------------------------------------------------

    if(!$fileTmpLoc)//no file was chosen ie file = null
    {
        echo "ERROR: Please select a file before clicking submit button.";
        exit();
    }
    else
        if(!$fileSize > 16777215)//if file is > 16MB (Max size of MEDIUMBLOB)
        {
            echo "ERROR: Your file was larger than 16 Megabytes";

            unlink($fileTmpLoc);//remove the uploaded file from the PHP folder
            exit();
        }
        else
            if(!preg_match("/\.(gif|jpg|jpeg|png)$/i", $fileName))//this codition allows only the type of files listed to be uploaded
            {
                echo "ERROR: Your image was not .gif, .jpg, .jpeg or .png";
                unlink($fileTmpLoc);//remove the uploaded file from the PHP temp folder
                exit();
            }
            else
                if($fileErrorMsg == 1)//if file uploaded error key = 1 ie is true
                {
                    echo "ERROR: An error occured while processing the file. Please try again.";
                    exit();
                }


    //END PHP Image Upload Error Handling---------------------------------------------------------------------------------------------------------------------


    //Place it into your "uploads" folder using the move_uploaded_file() function
    $moveResult = move_uploaded_file($fileTmpLoc, $target_path);

    //Check to make sure the result is true before continuing
    if($moveResult != true)
    {
        echo "ERROR: File not uploaded. Please Try again.";
        unlink($fileTmpLoc);//remove the uploaded file from the PHP temp folder

    }
    else
    {
        //Display to the page so you see what is happening 
        echo "The file named <strong>$fileName</strong> uploaded successfully.<br/><br/>";
        echo "It is <strong>$fileSize</strong> bytes.<br/><br/>";
        echo "It is a <strong>$fileType</strong> type of file.<br/><br/>";
        echo "The Error Message output for this upload is: $fileErrorMsg";
    }
?>

Answer 1

确保目录结构具有写权限。您可以使用is_writeable在php中查看。通过在PHP中检查，您还将确保PHP用户具有写访问权。

Answer 2

检查服务器上的文件夹权限。如果不正确，您可以修改您的php.ini文件。

PHP无法将文件上传到服务器？

2 个答案: