How To Get File Modified Date in PHP

This is how you can find out when a file was modified in PHP.

1. filemtime

$filename = "reademe.txt";
  if (file_exists($filename)) {
    echo "$filename was last modified: " . date ("F d Y H:i:s.", filemtime($filename));
}

php filemtime reference here

2. stat[‘mtime’]

$stat = stat("reademe.txt");
  if (is_array($stat)) {
    echo 'Modification time: ' . date ("F d Y H:i:s.", $stat['mtime']);
}

php stat reference here

Note that both filemtime and stat[‘mtime’] returns a unix timestamp which is not very useful for normal human brain consumption so mosf of the time you will need to convert it to a human understandable date format using the php date function (see examples above)