filemtime

Definition and usage

filemtime() function returns the last time the file content is modified.

If successful, the time is returned as a Unix timestamp. If it fails, return false.

实例

<?php
echo filemtime("test.txt");
echo "Last modified: ".date("F d Y H:i:s.",filemtime("test.txt"));
?>

输出：

1139919766
Last modified: February 14 2006 13:22:46.

grammar

 filemtime ( filename )

illustrate

This function returns the last time the data block in the file was written, that is, the last time the content of the file was modified.