What to do if php ftp_put fails

php Solution to ftp_put failure: First open "Upload/Driver/Ftp.class.php"; then use the "ftp_pasv($this->link,true);" method to switch to passive mode; finally Just re-upload the file on the client.

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PHP Upload FTP driver ftp_put function upload failure problem

2 servers, one for ftp server and one for web server.

I use the Upload class of thinkphp3.2 and use the upload FTP driver, but it says file saving failure every time.

I am looking for the answer. I have tested both asynchronous and synchronous, but neither works. The remote /tmp/ and ftp directories also have 777 permissions.

Thinkphp should be very mature. Later I found some answers in the official documents, including the explanation mode

ftp server active mode, ftp server passive mode, I use ftp_pasv($this-> ;link,true); Switch to passive mode and the client can upload files smoothly.

Here is the solution

Upload/Driver/Ftp.class.php sava function

public function save($file, $replace=true) {
        $filename = $file['rootPath']. $file['savepath'] . $file['savename'];
        /* 不覆盖同名文件 */
        // if (!$replace && is_file($filename)) {
        //     $this->error = '存在同名文件' . $file['savename'];
        //     return false;
        // }
        ftp_pasv($this->link,true);
        ftp_pwd($this->link);
        $filename=$file['savename'];
        if (!ftp_put($this->link, $filename, $file['tmp_name'],FTP_ASCII)) {
            $this->error = '文件上传FTP错误！';
            return false;
        }
        return true;
    }

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