图片上传脚本错误（PHP）
[英]Error in image uploading script(php)
问题描述
I have written a php script to upload an image,both the script and uploads folder are in my htdocs folder.This is my script: 
我写了一个php脚本来上传图像，脚本和uploads文件夹都在我的htdocs文件夹中。这是我的脚本：
<head>
<title>Upload an Image</title>
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<meta name="generator" content="Geany 0.21" />
<style type="text/css" title="text/css" media="all">
.error {
font-weight: bold;
color:#Coo;
}
</style>
</head>
<body>
<?php
if($_SERVER['REQUEST_METHOD']=='POST') {
if(isset($_FILES['upload'])) {
$allowed = array('image/pjpeg','image/JPG','image/X-PNG','image/png','image/x-png');
if(in_array($_FILES['upload']['type'],$allowed)) {
if(move_uploaded_file($_FILES['upload'] ['tmp_name'],"../uploads/{_FILES['upload']['name']}")) {
echo '<p><em>The file has been uploaded!</em> </p>';
}
}
else {
echo '<p class="error">Please uploaded a JPEG or PNG image.</p>';
}
}
if($_FILES['upload']['error'] > 0) {
echo '<p class="error">The file could not be uploaded because: <strong></p>';
switch ($_FILES['upload']['error']) {
case 1:
print 'The file exeeds the upload_max_filesize setting in php.ini';
break;
case 2:
print 'The file exeeds the MAX_FILE_SIZE setting in the HTML form';
break;
case 3:
print 'The file was only partially uploaded.';
break;
case 4:
print 'No file was uploaded';
break;
case 6:
print 'No tmp folder was available';
break;
case 7:
print 'Unable to write on the disk';
break;
case 8:
print 'File upload stopped';
break;
default:
print 'A system error occured';
break;
}
print '</strong>';
}
if(file_exists ($_FILES['upload']['tmp_name']) && is_file($_FILES['upload']['tmp_name']) ) {
unlink ($_FILES['upload']['tmp_name']);
}
}
?>
<form enctype="multipart/form-data" action="upload_image.php" method="post">
<input type="hidden" name="MAX_FILE_SIZE" value="524288" />
<fieldset><legend>Select a JPEG/PNG image of 512KB or smaller to be uploaded:</legend>
<p><b>File:</b><input type="file" name="upload" /></p>
</fieldset>
<div align="center">
<input type="submit" name="submit" value="Submit" />
</div>
</form>
</body>
</html>
I am getting error like: Warning: move_uploaded_file(../uploads/110221110100_96.png): failed to open stream: No such file or directory in /opt/lampp/htdocs/upload_image.php on line 27 我收到以下错误消息：警告：move_uploaded_file（../ uploads / 110221110100_96.png）：无法打开流：第27行的/opt/lampp/htdocs/upload_image.php中没有此类文件或目录
Warning: move_uploaded_file(): Unable to move '/tmp/phph4iy1j' to '../uploads/110221110100_96.png' in /opt/lampp/htdocs/upload_image.php on line 27. 警告：move_uploaded_file（）：无法在第27行的/opt/lampp/htdocs/upload_image.php中将'/ tmp / phph4iy1j'移动到'../uploads/110221110100_96.png'。
but i have set all the required permissions.....Looking forward for helps,Thanks 但是我已经设置了所有必需的权限.....感谢您的帮助，谢谢
2 个解决方案
解决方案1
0 2013-03-03 18:59:52
To rule out any confusion with relative paths I'd use an absolute path (ie /home/foo/project/uploads ) for move_updated_file() first. 为了排除与相对路径的任何混淆，我首先将绝对路径（即/home/foo/project/uploads ）用于move_updated_file() 。
If that still fails try moving the uploaded file to something like /tmp/foo . 如果仍然失败，请尝试将上传的文件移动到/tmp/foo 。 If that works then your problem is permissions based on the uploads folder you're trying to move the image to. 如果可行，那么您的问题是基于您要将图像移至的上载文件夹的权限。
解决方案2
0 2013-03-04 06:38:47
You should make your upload directory absolute, like James said. 您应该像James一样将上传目录设为绝对目录。 Except I would probably go with the server document root way. 除了我可能会采用服务器文档的根目录方式。
if(move_uploaded_file($_FILES['upload'] ['tmp_name'], $_SERVER['DOCUMENT_ROOT']."/uploads/".$_FILES['upload']['name'])) {
echo '<p><em>The file has been uploaded!</em> </p>';
}
This assumes $_SERVER['DOCUMENT_ROOT'] resolves to /opt/lampp/htdocs - I would assume so by looking at your path. 假设$_SERVER['DOCUMENT_ROOT']解析为/opt/lampp/htdocs我会通过查看您的路径来假设。
You can print_r($_SERVER['DOCUMENT_ROOT']) to see what the actual path is. 您可以使用print_r($_SERVER['DOCUMENT_ROOT'])查看实际路径。
Keep in mind, you may want to validate mime types and rename your files before dropping them in a public folder. 请记住，您可能需要验证MIME类型并重命名文件，然后再将它们放入公用文件夹。 As is, the code can leave you open to badness. 照原样，该代码可能会让您无所适从。 That's for another discussion though. 不过，这是另一个讨论。
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