Question

我正在关注本教程：http://www.w3schools.com/php/php_file_upload.asp。我已经复制并粘贴了PHP和HTML的代码。在文件夹中，我有upload.html，php.ini（带有file_uploads = On），upload.php和一个名为uploads的文件夹，其中所有上传的文件都应该去在，我想。

当我按提交时，一切似乎都有效，即成功消息得到回应，"The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded."。但是，uploads文件夹中似乎没有文件出现。

此外，当我尝试上传相同的文件时，收到错误消息echo "Sorry, file already exists.";，这很奇怪，因为我在uploads文件夹中看不到该文件。

我目前正在使用FireFTP来存储我上传的所有代码和文件。

以下是upload.html的代码：

<!DOCTYPE html>

<html>
<body>

<form action="upload.php" method="post" enctype="multipart/form-data">
    Select image to upload:
    <input type="file" name="fileToUpload" id="fileToUpload">
    <input type="submit" value="Upload Image" name="submit">
</form>

</body>
</html>

这是我的upload.php：

<?php
$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
    $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
    if($check !== false) {
        echo "File is an image - " . $check["mime"] . ".";
        $uploadOk = 1;
    } else {
        echo "File is not an image.";
        $uploadOk = 0;
    }
}
// Check if file already exists
if (file_exists($target_file)) {
    echo "Sorry, file already exists.";
    $uploadOk = 0;
}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 500000) {
    echo "Sorry, your file is too large.";
    $uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
    echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
    $uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
    echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
    if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
        echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
    } else {
        echo "Sorry, there was an error uploading your file.";
    }
}
?>

另外，有人告诉我PHP是一种服务器端语言。这究竟意味着什么？我试着在线阅读一些东西，但它充满了这么多行话。这是否意味着我必须使用像FireFTP这样的东西才能使用像PHP这样的语言？

我无法使用chrome打开我的文本文件并能够使用PHP？就像，我右键单击包含我的代码的文本文件并执行＆＃34;用chrome打开＃34;？这是否也与网络托管有关？

Answer 1

试用此代码

   $file_exts = array("jpg", "bmp", "jpeg", "gif", "png");
        $file_exts = array("jpg", "bmp", "jpeg", "gif", "png");
        $upload_exts = end(explode(".", $_FILES["fileToUpload"]["name"]));
                    if ((($_FILES["fileToUpload"]["type"] == "image/gif")
                    || ($_FILES["fileToUpload"]["type"] == "image/jpeg")
                    || ($_FILES["fileToUpload"]["type"] == "image/png")
                    || ($_FILES["fileToUpload"]["type"] == "image/pjpeg"))
                    && ($_FILES["fileToUpload"]["size"] < 2000000)
                    && in_array($upload_exts, $file_exts))
                            {
                                if ($_FILES["fileToUpload"]["error"] > 0)
                                {
                                    header("Location:dashboard.php?err=imgpro1");
                                    //echo "Return Code: " . $_FILES["fileToUpload"]["error"] . "<br>";
                                }
                                else
                                {
                                    $tempupname = time().$_FILES["fileToUpload"]["name"];
                                    $imgpathtostore="uploads/".$tempupname;
                                    $imgpathtostoreDB="uploads/".$tempupname;
                                    // Enter your path to upload file here
                                    move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $imgpathtostore);
                                    }
                                    }
                                    else
                                            {
                                                header("Location: index.php?err=imgpro");
                                            }
      }

Answer 2

您需要设置uploads文件夹权限读取，写入和删除。

调试将图片文件上传到文件夹中

2 个答案: