PHP filemtime() Function
Definition and Usage
The filemtime() function returns the last modification time of the file content.
If successful, the time is returned in the form of a Unix timestamp. If failed, false is returned.
Syntax
filemtime(filename)
| Parameter | Description |
|---|---|
| filename | Required. Specifies the file to be checked. |
Description
This function returns the last modified time of the data block in the file, that is, the last time the file content was modified.
Tips and Comments
Tip:The result of this function will be cached. Please use clearstatcache() to clear the cache.
Example
<?php
echo filemtime("test.txt");
echo "Last modified: ".date("F d Y H:i:s.",filemtime("test.txt"));
?>
Output:
1139919766 Last modified: February 14 2006 13:22:46.
