Question

使用以下代码有人可以向我解释如何在上传过程中将图像文件重命名为misc名称？

以下是我正在使用的内容。

uploader.php

<?php
include($_SERVER['DOCUMENT_ROOT'] . "/connections/dbconnect.php");
$dataType = mysql_real_escape_string($_POST["dataType"]);
$title = mysql_real_escape_string($_POST["title"]);
$fileName = basename($_FILES["image"]["name"]);
$target_path = ($_SERVER['DOCUMENT_ROOT'] . "/images/gallery/".$fileName);
if (file_exists($target_path))
{
    echo "An image with that file name already exists.";
}
elseif (move_uploaded_file($_FILES["image"]["tmp_name"], $target_path))
{
    // The file is in the images/gallery folder. Insert record into database by
    // executing the following query:
     $sql="INSERT INTO images (data_type, title, file_name)"."VALUES('$dataType','$title','$fileName')";
     $retval = mysql_query($sql);

    echo "The image was successfully uploaded and added to the gallery :) <a href='index.php'>Add another image</a>";


}
else
{
    echo "There was an error uploading the file, please try again!";
}
?>

然后，这是我将图像上传到图库的代码。

<form enctype="multipart/form-data" action="uploader.php" method="POST">


        Category: <select class="text" name="dataType">
        <option value="treeremoval" selected="selected">treeremoval</option>
        <option value="treetrimming" >treetrimming</option>
        <option value="treebracing" >treebracing</option>
        <option value="stumpgrinding" >stumpgrinding</option>
        <option value="firewood" >firewood</option>
        <option value="cleanup" >cleanup</option>
        </select><br />
<br />




    Caption: <input type="text" name="title"><br />
<br />

    Image to upload: <input type="file" name="image"><br />
<br />




    <input type="submit" value="Upload">
</form>

我是使用php和mysql的新手，所以任何帮助将不胜感激。我也有其他一些问题，但我想我应该一次问一个问题。 =）

谢谢！

Answer 1

我会尝试这样的事情，你会创建一个唯一的id并将文件的扩展名附加到它，如果你存在该名称，则循环直到你没有，然后移动文件。

<?php
include($_SERVER['DOCUMENT_ROOT'] . "/connections/dbconnect.php");

$dataType = mysql_real_escape_string($_POST["dataType"]);
$title = mysql_real_escape_string($_POST["title"]);

$fileData = pathinfo(basename($_FILES["image"]["name"]));

$fileName = uniqid() . '.' . $fileData['extension'];

$target_path = ($_SERVER['DOCUMENT_ROOT'] . "/images/gallery/" . $fileName);

while(file_exists($target_path))
{
    $fileName = uniqid() . '.' . $fileData['extension'];
    $target_path = ($_SERVER['DOCUMENT_ROOT'] . "/images/gallery/" . $fileName);
}

if (move_uploaded_file($_FILES["image"]["tmp_name"], $target_path))
{
    // The file is in the images/gallery folder. Insert record into database by
    // executing the following query:
     $sql="INSERT INTO images (data_type, title, file_name)"."VALUES('$dataType','$title','$fileName')";
     $retval = mysql_query($sql);

    echo "The image was successfully uploaded and added to the gallery :) <a href='index.php'>Add another image</a>";


}
else
{
    echo "There was an error uploading the file, please try again!";
}

＆GT;

Answer 2

你正在做move_uploaded_file($_FILES["image"]["tmp_name"], $target_path)

您$target_path来自变量$fileName

从

更改文件名

$fileName = basename($_FILES["image"]["name"]);

到

'myfilename'

Answer 3

请尝试以下代码：

$sql =mysql_query("select * from table ");
$result = mysql_num_rows($sql) +1;

$newfilename = rename("$oldfilename", "$newfilename");

Answer 4

我建议上传安全图片格式并限制文件大小

           //image upload
            $pro_image = $_FILES['image']['name'];
            $pro_image_tmp = $_FILES['image']['tmp_name'];

            $fileType = $_FILES["image"]["type"];  
            $fileSize = $_FILES["image"]["size"];  
            $fileErrorMsg = $_FILES["image"]["error"];  

             $fileName = preg_replace('#[^a-z.0-9]#i', '', $pro_image); 
             $nwtourimg = explode(".", $fileName);
             if (!$pro_image_tmp) { // if file not chosen
                echo "ERROR: Please browse for a file before clicking the upload button.";
                exit();
            } else if($fileSize > 5242880) { // if file size is larger than 5 Megabytes
                echo "ERROR: Your file was larger than 5 Megabytes in size.";
                unlink($pro_image_tmp); // Remove the uploaded file from the PHP temp folder
                exit();
            } else if (!preg_match("/.(gif|jpg|png|jpeg)$/i", $fileName) ) {
                 // This condition is only if you wish to allow uploading of specific file types    
                 echo "ERROR: Your image was not .gif, .jpg, or .png.";
                 unlink($pro_image_tmp); // Remove the uploaded file from the PHP temp folder
                 exit();
            } else if ($fileErrorMsg == 1) { // if file upload error key is equal to 1
                echo "ERROR: An error occured while processing the file. Try again.";
                exit();
            }

             $fileExt = end($nwtourimg);
             $fileName = time().rand().".".$fileExt;


             move_uploaded_file("$pro_image_tmp","upload/$fileName");
                //image upload end

Answer 5

//图片上传 $ pro_image = $ _FILES ['image'] ['name']; $ pro_image_tmp = $ _FILES ['image'] ['tmp_name'];

        $fileType = $_FILES["image"]["type"];  
        $fileSize = $_FILES["image"]["size"];  
        $fileErrorMsg = $_FILES["image"]["error"];  

         $fileName = preg_replace('#[^a-z.0-9]#i', '', $pro_image); 
         $nwtourimg = explode(".", $fileName);
         if (!$pro_image_tmp) { // if file not chosen
            echo "ERROR: Please browse for a file before clicking the upload button.";
            exit();
        } else if($fileSize > 5242880) { // if file size is larger than 5 Megabytes
            echo "ERROR: Your file was larger than 5 Megabytes in size.";
            unlink($pro_image_tmp); // Remove the uploaded file from the PHP temp folder
            exit();
        } else if (!preg_match("/.(gif|jpg|png|jpeg)$/i", $fileName) ) {
             // This condition is only if you wish to allow uploading of specific file types    
             echo "ERROR: Your image was not .gif, .jpg, or .png.";
             unlink($pro_image_tmp); // Remove the uploaded file from the PHP temp folder
             exit();
        } else if ($fileErrorMsg == 1) { // if file upload error key is equal to 1
            echo "ERROR: An error occured while processing the file. Try again.";
            exit();
        }

         $fileExt = end($nwtourimg);
         $fileName = time().rand().".".$fileExt;


         move_uploaded_file("$pro_image_tmp","upload/$fileName");
            //image upload end

在上传PHP Mysql期间重命名图像

5 个答案: