php 使用PHP时如何获取FTP错误
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How to get the FTP error when using PHP
提问by AmbroseChapel
I have a script which logs on to a remote server and tries to rename files, using PHP.
我有一个脚本，它登录到远程服务器并尝试使用 PHP 重命名文件。
The code currently looks something like this example from the php.net website:
该代码目前类似于 php.net 网站上的这个示例：
if (ftp_rename($conn_id, $old_file, $new_file)) {
echo "successfully renamed $old_file to $new_file\n";
} else {
echo "There was a problem while renaming $old_file to $new_file\n";
}
but ... what was the error? Permissions, no such directory, disk full?
但是......错误是什么？权限，没有那个目录，磁盘满了？
How can I get PHP to return the FTP error? Something like this:
如何让 PHP 返回 FTP 错误？像这样的东西：
echo "There was a problem while renaming $old_file to $new_file:
the server says $error_message\n";
采纳答案by FlySwat
Looking at the FTP API here:
在此处查看 FTP API：
http://us.php.net/manual/en/function.ftp-rename.php
http://us.php.net/manual/en/function.ftp-rename.php
There doesn't seem to be any way to get anything but true or false.
除了真假之外，似乎没有任何方法可以得到任何东西。
However, you could use ftp_raw to send a raw RENAME command, and then parse the returned message.
但是，您可以使用 ftp_raw 发送原始 RENAME 命令，然后解析返回的消息。
回答by Sascha Schmidt
You could use error_get_last() if return value is false.
如果返回值为 false，您可以使用 error_get_last()。
回答by Peter Hopfgartner
I'm doing something like:
我正在做类似的事情：
$trackErrors = ini_get('track_errors');
ini_set('track_errors', 1);
if (!@ftp_put($my_ftp_conn_id, $tmpRemoteFileName, $localFileName, FTP_BINARY)) {
// error message is now in $php_errormsg
$msg = $php_errormsg;
ini_set('track_errors', $trackErrors);
throw new Exception($msg);
}
ini_set('track_errors', $trackErrors);
EDIT:
编辑：
Note that $php_errormsg is deprecated as of PHP 7.
请注意，$php_errormsg 自 PHP 7 起已弃用。
Use error_get_last() instead.
改用 error_get_last() 。
See answer by @Sascha Schmidt
请参阅@Sascha Schmidt 的回答
回答by jsherk
Based on @Sascha Schmidt answer, you could do something like this:
根据@Sascha Schmidt 的回答，您可以执行以下操作：
if (ftp_rename($conn_id, $old_file, $new_file)) {
echo "successfully renamed $old_file to $new_file\n";
} else {
echo "There was a problem while renaming $old_file to $new_file\n";
print_r( error_get_last() ); // ADDED THIS LINE
}
print_r will display the contents of the error_get_last() array so you can pinpoint the error.
print_r 将显示 error_get_last() 数组的内容，以便您可以查明错误。
