图片上传脚本出错(Php)
我已经写了一个上传图片的php脚本，脚本和上传文件夹都在我的htdocs中，folder.This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 ($_FILES['upload']['tmp_name']);
}
}
?>
<form enctype="multipart/form-data" action="upload_image.php" method="post">
<input type="hidden" name="MAX_FILE_SIZE" value="524288" />
<fieldset><legend>Select a JPEG/PNG image of 512KB or smaller to be uploaded:</legend>
<p><b>File:</b><input type="file" name="upload" /></p>
</fieldset>
<div align="center">
<input type="submit" name="submit" value="Submit" />
</div>
</form>
</body>
</html>我收到如下错误:警告: move_uploaded_file(../uploads/110221110100_96.png)：无法打开流:在第27行的/opt/lampp/htdocs/upload_image.php中没有这样的文件或目录
警告: move_uploaded_file()：无法将“/tmp/phph4iy1j”移动到/opt/lampp/htdocs/upload_image.php中的“../uploads/110221110100_96.png”。
但我已经设置了帮助所需的所有permissions.....Looking，谢谢
回答 2
Stack Overflow用户
发布于 2013-03-04 02:59:52
为了排除与相对路径的混淆，我首先对move_updated_file()使用绝对路径(即/home/foo/project/uploads)。
如果仍然失败，请尝试将上传的文件移动到类似于/tmp/foo的位置。如果这是有效的，那么您的问题是基于您试图将图像移动到的上传文件夹的权限。
Stack Overflow用户
发布于 2013-03-04 14:38:47
您应该像James所说的那样，使您的上传目录成为绝对目录。除了我可能会使用服务器文档根方法。
if(move_uploaded_file($_FILES['upload'] ['tmp_name'], $_SERVER['DOCUMENT_ROOT']."/uploads/".$_FILES['upload']['name'])) {
echo '<p><em>The file has been uploaded!</em> </p>';
}这里假设$_SERVER['DOCUMENT_ROOT']解析为/opt/lampp/htdocs --通过查看路径，我假设是这样的。
您可以通过print_r($_SERVER['DOCUMENT_ROOT'])查看实际路径。
请记住，在将文件放入公用文件夹之前，您可能需要验证mime类型并重命名文件。实际上，这些代码可能会让你暴露在不好的地方。不过，这是另一种讨论。
https://stackoverflow.com/questions/15189471
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