ftp_mdtm

说明

int ftp_mdtm ( resource ftp_stream, string remote_file )

ftp_mdtm() 检查指定文件的最后修改时间，并以 UNIX 时间戳的方式返回。如果发生错误，或文件不存在则返回 -1。

例子 1. ftp_mdtm() 例子
<?php $file = 'somefile.txt'; // connect to the server $conn_id = ftp_connect($ftp_server); $login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass); // get the last modified time $buff = ftp_mdtm($conn_id, $file); if ($buff != -1) { // somefile.txt was last modified on: March 26 2003 14:16:41. echo "$file was last modified on : " . date ("F d Y H:i:s.", $buff); } else { echo "Couldn't get mdtime"; } // close the connection ftp_close($conn_id); ?>

如果成功返回一个 UNIX 时间戳，否则返回 -1。

注: 某些 FTP 服务器可能会不支持这个特性。

注: ftp_mdtm() 函数不适用于检查目录。

add a note User Contributed Notes

Jaytop
13-Jun-2005 03:51


Seems to work with directories as well on my Win32 box.

wseibert at hxcorp dot com
05-Nov-2004 04:55


When trying to get the modified time of a file that has spaces in it, ftp_mdtm will fail on some FTP servers.  If this happens, surround the file name with quotes.



$file_name = "my index.html";



$file_modtime = ftp_mdtm($connection, '"'.$file_name.'"')

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