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Net_FTP::mdtm() -- returns the last modification date of a file.


require_once 'Net/FTP.php';

mixed Net_FTP::mdtm (string $file [, string $format = null])


gives you the last modification-date of a file either as a unix timestamp or in a formated date.


Return value

mixed - the last modification date on success, otherwise PEAR::Error.


Several errors may be returned by mdtm. The errornumber is unspecific (until now) and will not tell you anything about the errormessage. Possible errors are:

Table 54-1. Possible PEAR_Error values

Error messageDescriptionSolution
Filename '$file' seems to be a directory. The filename you gave the method does not reference a regular-file but a directory. Specify a correct filenamepath (eg. /my/file/path/foo.html, ../foo.html).
Could not get last-modification-date of '$file'. The last-modification date could not be determined by PHP. Reasons for this may be that your FTP-server does not support the used command or that you gave the function a non existent file as reference.

  • check the given file for existence

  • contact the FTP server's admin

Date-format failed on timestamp '$res'. The given format-string was not well formated. Check the documentation of the PHP function date().


This function can not be called statically.


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