无法打开流？图片上传但未回显

Question

我正在使用php上传文件。我成功完成了但是当我想打印它时它给我错误plz帮助我我的PHP脚本在下面

<?php
$target_dir = "C:\wamp\www\upload\upload/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);

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;
    }
}

if (file_exists($target_file)) {
    echo "Sorry, file already exists.";
    $uploadOk = 0;
}

if ($_FILES["fileToUpload"]["size"] > 500000) {
    echo "Sorry, your file is too large.";
    $uploadOk = 0;
}

if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
    echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
    $uploadOk = 0;
}

if ($uploadOk == 0) {
    echo "Sorry, your file was not uploaded.";

} 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.";
    }
	
	if(copy($_FILES['fileToUpload']['name'], $target_dir))
{
echo "Successful<BR/>";
echo "File Name :".$_FILES['fileToUpload']['name']."<BR/>";
echo "File Size :".$_FILES['fileToUpload']['size']."<BR/>";
echo "File Type :".$_FILES['fileToUpload']['type']."<BR/>";
echo "<img src=\"$target_dir\" width=\"150\" height=\"150\">";
}
}
?>

发生以下错误

上传后应该像这样打印 enter link description here

Answer 1

像这样尝试

	if (is_file($target_file))
{
echo "Successful<BR/>";
echo "File Name :".$_FILES['fileToUpload']['name']."<BR/>";
echo "File Size :".$_FILES['fileToUpload']['size']."<BR/>";
echo "File Type :".$_FILES['fileToUpload']['type']."<BR/>";
echo "<img src=\"$target_file\" width=\"150\" height=\"150\">";
}

Answer 2

那是因为你正在复制一个不再存在的文件..

//$_FILES['fileToUpload']['name'] doesn't exist anymore because YOU MOVED IT
copy($_FILES['fileToUpload']['name'], $target_dir)

如果你想要复制..而不是使用$ _FILE，你可以像..

那样

copy($target_file, $target_dir)

变量'target_file'是您将文件移动到哪里的？

这应该有效。

Answer 3

只需替换此

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.";
    }

    if(copy($_FILES['fileToUpload']['name'], $target_dir))
{
echo "Successful<BR/>";
echo "File Name :".$_FILES['fileToUpload']['name']."<BR/>";
echo "File Size :".$_FILES['fileToUpload']['size']."<BR/>";
echo "File Type :".$_FILES['fileToUpload']['type']."<BR/>";
echo "<img src=\"$target_dir\" width=\"150\" height=\"150\">";
}

到

if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
        echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
        echo "Successful<BR/>";
echo "File Name :".$_FILES['fileToUpload']['name']."<BR/>";
echo "File Size :".$_FILES['fileToUpload']['size']."<BR/>";
echo "File Type :".$_FILES['fileToUpload']['type']."<BR/>";
echo "<img src=\"$target_dir\" width=\"150\" height=\"150\">";
    } else {
        echo "Sorry, there was an error uploading your file.";
    }

不需要if(copy($_FILES['fileToUpload']['name'], $target_dir))，因为$_FILES["fileToUpload"]['name']不是文件，但文件是$_FILES["fileToUpload"]["tmp_name"]，您已经完成了