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# filemtime

(PHP 3, PHP 4 )

filemtime -- Gets file modification time

## Description

int filemtime ( string filename)

Returns the time the file was last modified, or `FALSE` in case of an error. The time is returned as a Unix timestamp, which is suitable for the date() function.

The results of this function are cached. See clearstatcache() for more details.

This function will not work on remote files; the file to be examined must be accessible via the server's filesystem.

Note: This function returns the time when the data blocks of a file were being written to, that is, the time when the content of the file was changed.

Example 1. filemtime() example

    <?php
    // outputs e.g.  somefile.txt was last modified: December 29 2002 22:16:23.

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

See also filectime(), stat(), touch(), and getlastmod().

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