disk_free_space

(PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)

disk_free_spaceReturns available space on filesystem or disk partition

Description

disk_free_space(string $directory): float|false

Given a string containing a directory, this function will return the number of bytes available on the corresponding filesystem or disk partition.

Parameters

directory

A directory of the filesystem or disk partition.

Note:

Given a file name instead of a directory, the behaviour of the function is unspecified and may differ between operating systems and PHP versions.

Return Values

Returns the number of available bytes as a float or false on failure.

Examples

Example #1 disk_free_space() example

<?php// $df contains the number of bytes available on "/"$df = disk_free_space("/");// On Windows:$df_c = disk_free_space("C:");$df_d = disk_free_space("D:");?>

Notes

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

See Also