How to get file content modification time in php

The method for PHP to obtain the modification time of file content is: it can be achieved through the filemtime() function. The filemtime() function will return the last modification time of the file contents in the form of a Unix timestamp. Function syntax: [filemtime(filename)].

#To obtain the file content modification time, you can use the filemtime() function.

(Recommended tutorial: php tutorial)

Function introduction:

filemtime() function returns the last modification time of the file content.

If successful, this function will return the last modification time of the file contents in the form of a Unix timestamp. On failure, returns FALSE.

Syntax structure:

filemtime(filename)

Parameter introduction:

• filename Required. Specifies the documents to be checked.

Code implementation:

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

Output result:

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

The above is the detailed content of How to get file content modification time in php. For more information, please follow other related articles on the PHP Chinese website!