Today, the SHUIPFCMS program adds remote attachment capabilities. Is the use of FTP implementation, the following posted a phpcms V9 inside an FTP processing class, roughly speaking how to implement the remote attachment.
FTP Class source code:
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Class FTP { //ftp connection resources private $link; //ftp connection time public $link _time; //error code private $err _code = 0; //Transfer Mode {text mode: FTP_ASCII, Binary mode: ftp_binary} public $mode = FTP_BINARY; /** * Connecting an FTP server * @param string $host server address * @param string $username user name * @param string $password password * @param integer $port server port, the default value is * @param boolean $PASV & nbsp; whether to open the passive mode * @param boolean $ssl whether to use an SSL connection    &Nbsp; * @param integer $timeout timeout */ public function Connect ($host, $username = ', $password = ', $port = ', $PASV = False, $ssl = false, $timeout = { $start = time (); if ($SSL) { if (! $this->link = @ftp _ssl_connect ($host, $port, $timeout)) { $this->err_code = 1; return false; }  &NBSP} else { if (! $this->link = @ Ftp_connect ($host, $port, $timeout)) { $this-> Err_code = 1; return false; } } if (@ftp_login ($this->link, $username, $password)) { if ($PASV)    FTP_PASV ($this->link, true); $this->link_time = time ()-$start; return true;        &NBSP} else { $this->err_code = 1; return false; } register_ Shutdown_function (Array (& $this, ' close '));    &NBSP} /** * Create a folder * @param string $dirname directory name, & nbsp;*/ public function mkdir ($dirname) { if (! $this->link) { $this->err_code = 2; return false;        &NBSP} $dirname = $ This->ck_dirname ($dirname); $nowdir = '/'; foreach ($dirname as $v) { if ($v && $this->chdir ($nowdir. $v)) { if ($nowdir) $this-> ChDir ($nowdir); @ftp_mkdir ($ This->link, $v); } if ($v) $nowdir. = $v. '/'; } &Nbsp; return true;    &NBSP} /** * Upload file * @param string $remote Remote Storage address & nbsp;* @param string $local Local address */ public function put ($ Remote, $local) { if (! $this->link) { $this->err_code = 2; return false;        &NBSP} $dirname = PathInfo ($remote, pathinfo_dirname); if (! $this->chdir ($dirname)) { $this->mkdir ($dirname); &nbSP;&NBSP} if (@ftp_put ($this->link, $remote, $local, $this-> mode)) { return true;     &NBSP} else { $ This->err_code = 7; return false; } /** * Delete folder * @ param string $dirname directory address * @param boolean $enforce Force delete & nbsp;*/ public function RmDir ($dirname, $enforce = False) { if (! $this->link) { $this->err_code = 2; return false;        &NBSP} $list = $this- >nlist ($dirname); if ($list && $enforce) { $this->chdir ($dirname); foreach ($list as $v) { $this->f_delete ($v); }  &NBSP} elseif ($list &&! $enforce) { $this->err_code = 3; return false;        &NBSP} @ftp_rmdir ($ This->link, $dirname); return true;    &NBSP} /** * Delete the specified file * @param string $filename filename */ public function F_delete ($filename) { if (! $this->link) { $this-> Err_code = 2; return false;        &NBSP} if (@ftp_ Delete ($this->link, $filename)) { return true;  } else { $this- >err_code = 4; return false; } /** * Returns a list of files for a given directory * @param string $dirname directory address * @return array file list data */ public function Nlist ($dirname) { if (! $this->link) { $this->err_code = 2; return false;        &NBSP} if ($list = @ftp _nlist ($thIs->link, $dirname)) { return $list;        &NBSP} else { $this->err_code = 5; return false; } /** * Changes the current directory on the FTP server * @param string $dirname Modify the current directory */ public function on the server ChDir ($dirname) { if (! $this->link) { $this->err_code = 2; return false;  &NBSP} if (@ftp_chdir ($this->link, $dirname)) { return true;        &NBSP} else { $this->err_code = 6; return false; } /** * get error messages */ public function Get_error () { if (! $this- >err_code) return false; $err _msg = Array ( ' 1 ' => ' Server can not connect ', ' 2 ' => ' Not connect to server ', ' 3 ' => ' Can not Delete non-empty folder ', ' 4 ' => ' Can not Delete file ', ' 5 ' => ' Can not get file List ', ' 6 ' => ' Can not change the current directory on the server ', ' 7 ' => ' Can not Upload files ' ); return $err _msg[$this->err_code];    &NBSP} /** * Detection Directory name * @param string $url directory * @return by/separate return array & nbsp; */ private function Ck_dirname ($url) { $url = Str_replace (', '/', $url); $urls = explode ('/', $url); return $urls;    &NBSP} /** * closes the FTP connection */ public function close () { return @ftp_close ($this->link);    &NBSP} } |
First of all, remote attachment upload the approximate process:
User Select File upload submit to server-> server receive file-> server some security detection completed via FTP function upload to the corresponding FTP server.
I said just a general process, not very standard, understand a meaning can! ~
This class uses the method roughly:
First through the $ftps->connect ($host, $username, $password, $post, $PASV, $ssl, $timeout), FTP server connection.
The operation of FTP through specific functions.
$ftps->mkdir () to create a directory, you can create a multi-level directory to "/abc/def/higk" the form of multi-level directory creation.
$ftps->put () upload file
$ftps->rmdir () Delete directory
$ftps->f_delete () Delete files
$ftps->nlist () lists the files for the specified directory
$ftps->chdir () to change the current folder
$ftps->get_error () to get the error message