关于html：csv文件不会通过php上传器上传

csv file won't upload through php uploader

本问题已经有最佳答案，请猛点这里访问。

我在WordPress中运行了这个自定义上传脚本，因为我不想/不需要使用内置的WordPress脚本。如果我上传一个csv文件，错误是：The file test.csv could not be copied, try again。不知道为什么会出现这个错误！

这是剧本。

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<?php
$updir = 'wp-content/themes/ddpp/upload_csv/';
$max_size = 100;
$allowtype = array('csv');
if (isset($_FILES['field_name'])) {

if ($_FILES['field_name']['error'] > 0) {
echo 'Error: '. $_FILES['field_name']['error']. '<br />';
}
else {
// get the name, size (in kb) and type (the extension) of the file
$fname = $_FILES['field_name']['name'];
$fsize = $_FILES['field_name']['size'] / 1024;
$ftype = end(explode('.', strtolower($fname)));

// checks if the file already exists
if (file_exists($updir. $fname)) {
echo 'The file: '. $fname. ' already exists';
}
else {
// if the file not exists, check its type (by extension) and size
if (in_array($ftype, $allowtype)) {
// check the size
if ($fsize <= $max_size) {
// uses function to copy the file from temporary folder to $updir
if (!move_uploaded_file ($_FILES['field_name']['tmp_name'], $updir. $fname)) {
echo 'The file '. $fname. ' could not be copied, try again';
}
else {
echo $fname. ' ('. $fsize. ' kb) was successfully uploaded';
}
}
else {
echo 'The file '. $fname. ' exceeds the maximum permitted size, '. $max_size. ' KB';
}
}
else {
echo $fname. ' - invalid file type';
}
}
}
}
?>

<form action="" method="post" enctype="multipart/form-data">
<input type="file" name="field_name" /><br />
<input type="submit" name="submit" value="Submit" />
</form>

更新以下是在尝试上载后创建的一些警告

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Strict Standards: Only variables should be passed by reference in /Applications/MAMP/htdocs/ddpp/wp-content/plugins/ddpp_csv_upload/index.php on line 182

Warning: move_uploaded_file(wp-content/themes/ddpp/upload_csv/test.csv): failed to open stream: No such file or directory in /Applications/MAMP/htdocs/ddpp/wp-content/plugins/ddpp_csv_upload/index.php on line 194

Warning: move_uploaded_file(): Unable to move '/Applications/MAMP/tmp/php/phpvT6vFM' to 'wp-content/themes/ddpp/upload_csv/test.csv' in /Applications/MAMP/htdocs/ddpp/wp-content/plugins/ddpp_csv_upload/index.php on line 194

相关讨论

让我们理解为什么会发生这种情况。您得到的错误是The file test.csv could not be copied, try again，所以下面的行是问题所在：

1	if (!move_uploaded_file ($_FILES['field_name']['tmp_name'], $updir. $fname))

根据move_uploaded_file()的文件，这是错误的原因：

If filename is not a valid upload file, then no action will occur, and move_uploaded_file() will return FALSE.

If filename is a valid upload file, but cannot be moved for some reason, no action will occur, and move_uploaded_file() will return FALSE. Additionally, a warning will be issued.

确保启用了警告，以帮助您进一步诊断问题(将此添加到脚本顶部)：

1 2	ini_set('display_errors', 1); error_reporting(E_ALL);

最常见的问题是文件目录不可写，因为PHP无法在目标目录中创建文件名。确保目录存在，并且PHP进程可以写入该文件夹。