仿写CodeIgniter的FTP操作类<?PHP <br />
/**<br>
* 仿写CodeIgniter的FTP类<br>
* FTP基本操作：<br>
* 1) 登陆; connect<br>
* 2) 当前目录文件列表; filelist<br>
* 3) 目录改变; chgdir<br>
* 4) 重命名/移动; rename<br>
* 5) 创建文件夹; mkdir<br>
* 6) 删除; delete_dir/delete_file<br>
* 7) 上传; upload<br>
* 8) 下载 download<br>
*<br>
* <br>
*/<br>
class Ftp {<br>
<br>
private $hostname = '';<br>
private $username = '';<br>
private $password = '';<br>
private $port = 21;<br>
private $passive = TRUE;<br>
private $debug = TRUE;<br>
private $conn_id = FALSE;<br>
<br>
/**<br>
* 构造函数<br>
*<br>
* @param array 配置数组 : $config = array('hostname'=>'','username'=>'','password'=>'','port'=>''...);<br>
*/<br>
public function __construct($config = array()) {<br>
if(count($config) > 0) {<br>
$this->_init($config);<br>
}<br>
}<br>
<br>
/**<br>
* FTP连接<br>
*<br>
* @access public<br>
* @param array 配置数组<br>
* @return boolean<br>
*/<br>
public function connect($config = array()) {<br>
if(count($config) > 0) {<br>
$this->_init($config);<br>
}<br>
<br>
if(FALSE === ($this->conn_id = @ftp_connect($this->hostname,$this->port))) {<br>
if($this->debug === TRUE) {<br>
$this->_error("ftp_unable_to_connect");<br>
}<br>
return FALSE;<br>
}<br>
<br>
if( ! $this->_login()) {<br>
if($this->debug === TRUE) {<br>
$this->_error("ftp_unable_to_login");<br>
}<br>
return FALSE;<br>
}<br>
<br>
if($this->passive === TRUE) {<br>
ftp_pasv($this->conn_id, TRUE);<br>
}<br>
<br>
return TRUE;<br>
}<br>
<br>
<br>
/**<br>
* 目录改变<br>
*<br>
* @access public<br>
* @param string 目录标识(ftp)<br>
* @param boolean <br>
* @return boolean<br>
*/<br>
public function chgdir($path = '', $supress_debug = FALSE) {<br>
if($path == '' OR ! $this->_isconn()) {<br>
return FALSE;<br>
}<br>
<br>
$result = @ftp_chdir($this->conn_id, $path);<br>
<br>
if($result === FALSE) {<br>
if($this->debug === TRUE AND $supress_debug == FALSE) {<br>
$this->_error("ftp_unable_to_chgdir:dir[".$path."]");<br>
}<br>
return FALSE;<br>
}<br>
<br>
return TRUE;<br>
}<br>
<br>
/**<br>
* 目录生成<br>
*<br>
* @access public<br>
* @param string 目录标识(ftp)<br>
* @param int 文件权限列表 <br>
* @return boolean<br>
*/<br>
public function mkdir($path = '', $permissions = NULL) {<br>
if($path == '' OR ! $this->_isconn()) {<br>
return FALSE;<br>
}<br>
<br>
$result = @ftp_mkdir($this->conn_id, $path);<br>
<br>
if($result === FALSE) {<br>
if($this->debug === TRUE) {<br>
$this->_error("ftp_unable_to_mkdir:dir[".$path."]");<br>
}<br>
return FALSE;<br>
}<br>
<br>
if( ! is_null($permissions)) {<br>
$this->chmod($path,(int)$permissions);<br>
}<br>
<br>
return TRUE;<br>
}<br>
<br>
/**<br>
* 上传<br>
*<br>
* @access public<br>
* @param string 本地目录标识<br>
* @param string 远程目录标识(ftp)<br>
* @param string 上传模式 auto || ascii<br>
* @param int 上传后的文件权限列表 <br>
* @return boolean<br>
*/<br>
public function upload($localpath, $remotepath, $mode = 'auto', $permissions = NULL) {<br>
if( ! $this->_isconn()) {<br>
return FALSE;<br>
}<br>
<br>
if( ! file_exists($localpath)) {<br>
if($this->debug === TRUE) {<br>
$this->_error("ftp_no_source_file:".$localpath);<br>
}<br>
return FALSE;<br>
}<br>
<br>
if($mode == 'auto') {<br>
$ext = $this->_getext($localpath);<br>
$mode = $this->_settype($ext);<br>
}<br>
<br>
$mode = ($mode == 'ascii') ? FTP_ASCII : FTP_BINARY;<br>
<br>
$result = @ftp_put($this->conn_id, $remotepath, $localpath, $mode);<br>
<br>
if($result === FALSE) {<br>
if($this->debug === TRUE) {<br>
$this->_error("ftp_unable_to_upload:localpath[".$localpath."]/remotepath[".$remotepath."]");<br>
}<br>
return FALSE;<br>
}<br>
<br>
if( ! is_null($permissions)) {<br>
$this->chmod($remotepath,(int)$permissions);<br>
}<br>
<br>
return TRUE;<br>
}<br>
<br>
/**<br>
* 下载<br>
*<br>
* @access public<br>
* @param string 远程目录标识(ftp)<br>
* @param string 本地目录标识<br>
* @param string 下载模式 auto || ascii <br>
* @return boolean<br>
*/<br>
public function download($remotepath, $localpath, $mode = 'auto') {<br>
if( ! $this->_isconn()) {<br>
return FALSE;<br>
}<br>
<br>
if($mode == 'auto') {<br>
$ext = $this->_getext($remotepath);<br>
$mode = $this->_settype($ext);<br>
}<br>
<br>
$mode = ($mode == 'ascii') ? FTP_ASCII : FTP_BINARY;<br>
<br>
$result = @ftp_get($this->conn_id, $localpath, $remotepath, $mode);<br>
<br>
if($result === FALSE) {<br>
if($this->debug === TRUE) {<br>
$this->_error("ftp_unable_to_download:localpath[".$localpath."]-remotepath[".$remotepath."]");<br>
}<br>
return FALSE;<br>
}<br>
<br>
return TRUE;<br>
}<br>
<br>
/**<br>
* 重命名/移动<br>
*<br>
* @access public<br>
* @param string 远程目录标识(ftp)<br>
* @param string 新目录标识<br>
* @param boolean 判断是重命名(FALSE)还是移动(TRUE) <br>
* @return boolean<br>
*/<br>
public function rename($oldname, $newname, $move = FALSE) {<br>
if( ! $this->_isconn()) {<br>
return FALSE;<br>
}<br>
<br>
$result = @ftp_rename($this->conn_id, $oldname, $newname);<br>
<br>
if($result === FALSE) {<br>
if($this->debug === TRUE) {<br>
$msg = ($move == FALSE) ? "ftp_unable_to_rename" : "ftp_unable_to_move";<br>
$this->_error($msg);<br>
}<br>
return FALSE;<br>
}<br>
<br>
return TRUE;<br>
}<br>
<br>
/**<br>
* 删除文件<br>
*<br>
* @access public<br>
* @param string 文件标识(ftp)<br>
* @return boolean<br>
*/<br>
public function delete_file($file) {<br>
if( ! $this->_isconn()) {<br>
return FALSE;<br>
}<br>
<br>
$result = @ftp_delete($this->conn_id, $file);<br>
<br>
if($result === FALSE) {<br>
if($this->debug === TRUE) {<br>
$this->_error("ftp_unable_to_delete_file:file[".$file."]");<br>
}<br>
return FALSE;<br>
}<br>
<br>
return TRUE;<br>
}<br>
<br>
/**<br>
* 删除文件夹<br>
*<br>
* @access public<br>
* @param string 目录标识(ftp)<br>
* @return boolean<br>
*/<br>
public function delete_dir($path) {<br>
if( ! $this->_isconn()) {<br>
return FALSE;<br>
}<br>
<br>
//对目录宏的'/'字符添加反斜杠'\'<br>
$path = preg_replace("/(.+?)\/*$/", "\\1/", $path);<br>
<br>
//获取目录文件列表<br>
$filelist = $this->filelist($path);<br>
<br>
if($filelist !== FALSE AND count($filelist) > 0) {<br>
foreach($filelist as $item) {<br>
//如果我们无法删除,那么就可能是一个文件夹<br>
//所以我们递归调用delete_dir()<br>
if( ! @delete_file($item)) {<br>
$this->delete_dir($item);<br>
}<br>
}<br>
}<br>
<br>
//删除文件夹(空文件夹)<br>
$result = @ftp_rmdir($this->conn_id, $path);<br>
<br>
if($result === FALSE) {<br>
if($this->debug === TRUE) {<br>
$this->_error("ftp_unable_to_delete_dir:dir[".$path."]");<br>
}<br>
return FALSE;<br>
}<br>
<br>
return TRUE;<br>
}<br>
<br>
/**<br>
* 修改文件权限<br>
*<br>
* @access public<br>
* @param string 目录标识(ftp)<br>
* @return boolean<br>
*/<br>
public function chmod($path, $perm) {<br>
if( ! $this->_isconn()) {<br>
return FALSE;<br>
}<br>
<br>
//只有在PHP5中才定义了修改权限的函数(ftp)<br>
if( ! function_exists('ftp_chmod')) {<br>
if($this->debug === TRUE) {<br>
$this->_error("ftp_unable_to_chmod(function)");<br>
}<br>
return FALSE;<br>
}<br>
<br>
$result = @ftp_chmod($this->conn_id, $perm, $path);<br>
<br>
if($result === FALSE) {<br>
if($this->debug === TRUE) {<br>
$this->_error("ftp_unable_to_chmod:path[".$path."]-chmod[".$perm."]");<br>
}<br>
return FALSE;<br>
}<br>
return TRUE;<br>
}<br>
<br>
/**<br>
* 获取目录文件列表<br>
*<br>
* @access public<br>
* @param string 目录标识(ftp)<br>
* @return array<br>
*/<br>
public function filelist($path = '.') {<br>
if( ! $this->_isconn()) {<br>
return FALSE;<br>
}<br>
<br>
return ftp_nlist($this->conn_id, $path);<br>
}<br>
<br>
/**<br>
* 关闭FTP<br>
*<br>
* @access public<br>
* @return boolean<br>
*/<br>
public function close() {<br>
if( ! $this->_isconn()) {<br>
return FALSE;<br>
}<br>
<br>
return @ftp_close($this->conn_id);<br>
}<br>
<br>
/**<br>
* FTP成员变量初始化<br>
*<br>
* @access private<br>
* @param array 配置数组 <br>
* @return void<br>
*/<br>
private function _init($config = array()) {<br>
foreach($config as $key => $val) {<br>
if(isset($this->$key)) {<br>
$this->$key = $val;<br>
}<br>
}<br>
<br>
//特殊字符过滤<br>
$this->hostname = preg_replace('|.+?://|','',$this->hostname);<br>
}<br>
<br>
/**<br>
* FTP登陆<br>
*<br>
* @access private<br>
* @return boolean<br>
*/<br>
private function _login() {<br>
return @ftp_login($this->conn_id, $this->username, $this->password);<br>
}<br>
<br>
/**<br>
* 判断con_id<br>
*<br>
* @access private<br>
* @return boolean<br>
*/<br>
private function _isconn() {<br>
if( ! is_resource($this->conn_id)) {<br>
if($this->debug === TRUE) {<br>
$this->_error("ftp_no_connection");<br>
}<br>
return FALSE;<br>
}<br>
return TRUE;<br>
}<br>
<br>
/**<br>
* 从文件名中获取后缀扩展<br>
*<br>
* @access private<br>
* @param string 目录标识<br>
* @return string<br>
*/<br>
private function _getext($filename) {<br>
if(FALSE === strpos($filename, '.')) {<br>
return 'txt';<br>
}<br>
<br>
$extarr = explode('.', $filename);<br>
return end($extarr);<br>
}<br>
<br>
/**<br>
* 从后缀扩展定义FTP传输模式 ascii 或 binary<br>
*<br>
* @access private<br>
* @param string 后缀扩展<br>
* @return string<br>
*/<br>
private function _settype($ext) {<br>
$text_type = array (<br>
'txt',<br>
'text',<br>
'php',<br>
'phps',<br>
'php4',<br>
'js',<br>
'css',<br>
'htm',<br>
'html',<br>
'phtml',<br>
'shtml',<br>
'log',<br>
'xml'<br>
);<br>
<br>
return (in_array($ext, $text_type)) ? 'ascii' : 'binary';<br>
}<br>
<br>
/**<br>
* 错误日志记录<br>
*<br>
* @access prvate<br>
* @return boolean<br>
*/<br>
private function _error($msg) {<br>
return @file_put_contents('ftp_err.log', "date[".date("Y-m-d H:i:s")."]-hostname[".$this->hostname."]-username[".$this->username."]-password[".$this->password."]-msg[".$msg."]\n", FILE_APPEND);<br>
}<br>
}<br>
<br>
<br>
<br>
$config = array(<br>
'hostname' => '124.160.116.76',<br>
'username' => 'hangye_lsp_19@192.168.18.19',<br>
'password' => 'tb6bCnHNrO',<br>
'port' => 52816<br>
);<br>
<br>
$ftp = new Ftp();<br>
<br>
$ftp->connect($config);<br>
$ftp->upload('localfile.log','remotefile.log');<br>
?>
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