/**
* Return the time at which the file or directory denoted by the given
* abstract pathname was last modified, or zero if it does not exist or
* some other I/O error occurs.
*/
public function getLastModifiedTime(File $f)
{
if (!$f->exists()) {
return 0;
}
@clearstatcache();
$strPath = $f->getPath()->toNative();
$mtime = @filemtime($strPath);
if (false === $mtime) {
// FAILED. Log and return err.
$msg = "FileSystem::Filemtime() FAILED. Cannot can not get modified time of {$strPath}. {$php_errormsg}";
throw new Exception($msg);
} else {
return (int) $mtime;
}
}
