安装
  In order to use FTP functions with your PHP configuration, you should
  add the --enable-ftp option when
  installing PHP 4 or --with-ftp when using
   PHP 3.
 
 PHP 的 Windows 版本已经内置该扩展模块的支持。您无需加载任何附加的扩展库即可使用这些函数。
预定义常量
由于这些常量是由该扩展模块定义的,因此只有在该扩展模块被编译到 PHP 中,或者在运行时被动态加载后,这些常量才有效。
  下列变量在 PHP 4.3.0 以后版本中被加入。
 
范例
     
| 例子 1. FTP 实例 | 
<?php// set up basic connection
 $conn_id = ftp_connect($ftp_server);
 
 // login with username and password
 $login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
 
 // check connection
 if ((!$conn_id) || (!$login_result)) {
 echo "FTP connection has failed!";
 echo "Attempted to connect to $ftp_server for user $ftp_user_name";
 exit;
 } else {
 echo "Connected to $ftp_server, for user $ftp_user_name";
 }
 
 // upload the file
 $upload = ftp_put($conn_id, $destination_file, $source_file, FTP_BINARY);
 
 // check upload status
 if (!$upload) {
 echo "FTP upload has failed!";
 } else {
 echo "Uploaded $source_file to $ftp_server as $destination_file";
 }
 
 // close the FTP stream
 ftp_close($conn_id);
 ?>
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