PHP5中文手册·Allocates space for a file to be uploaded -- 追寻梦想＞编程乐园＞PHP 编程

说明

bool ftp_alloc ( resource $ftp_stream , int $filesize [, string &$result ] )

Sends an ALLO command to the remote FTP server to allocate space for a file to be uploaded.

Note: Many FTP servers do not support this command. These servers may return a failure code (FALSE) indicating the command is not supported or a success code (TRUE) to indicate that pre-allocation is not necessary and the client should continue as though the operation were successful. Because of this, it may be best to reserve this function for servers which explicitly require preallocation.

参数

ftp_stream: The link identifier of the FTP connection.
filezise: The number of bytes to allocate.
return: A textual representation of the servers response will be returned by reference in result if a variable is provided.

返回值

如果成功则返回 TRUE，失败则返回 FALSE。

范例

Example#1 ftp_alloc() example


<?php

$file = "/home/user/myfile";

/* connect to the server */
$conn_id = ftp_connect('ftp.example.com');
$login_result = ftp_login($conn_id, 'anonymous', 'user@example.com');

if (ftp_alloc($conn_id, filesize($file), $result)) {
  echo "Space successfully allocated on server.  Sending $file.\n";
  ftp_put($conn_id, '/incomming/myfile', $file, FTP_BINARY);
} else {
  echo "Unable to allocate space on server.  Server said: $result\n";
}

ftp_close($conn_id);

?>


	PHP5中文手册 FTP ftp_cdup FTP PHP Manual ftp_alloc (PHP 5) ftp_alloc — Allocates space for a file to be uploaded 说明 bool ftp_alloc ( resource `$ftp_stream` , int `$filesize` [, string `&$result` ] ) Sends an ALLO command to the remote FTP server to allocate space for a file to be uploaded. Note: Many FTP servers do not support this command. These servers may return a failure code (`FALSE`) indicating the command is not supported or a success code (`TRUE`) to indicate that pre-allocation is not necessary and the client should continue as though the operation were successful. Because of this, it may be best to reserve this function for servers which explicitly require preallocation. 参数 `ftp_stream` The link identifier of the FTP connection. `filezise` The number of bytes to allocate. `return` A textual representation of the servers response will be returned by reference in `result` if a variable is provided. 返回值如果成功则返回 `TRUE`，失败则返回 `FALSE`。范例 Example#1 ftp_alloc() example <?php $file = "/home/user/myfile"; /* connect to the server */ $conn_id = ftp_connect('ftp.example.com'); $login_result = ftp_login($conn_id, 'anonymous', 'user@example.com'); if (ftp_alloc($conn_id, filesize($file), $result)) { echo "Space successfully allocated on server. Sending $file.\n"; ftp_put($conn_id, '/incomming/myfile', $file, FTP_BINARY); } else { echo "Unable to allocate space on server. Server said: $result\n"; } ftp_close($conn_id); ?> 参见 ftp_put() ftp_fput() FTP ftp_cdup FTP PHP Manual

ftp_alloc

说明

参数

返回值

范例

参见