PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8
disk_free_space - Returns available space on filesystem or disk partition
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.
A directory of the filesystem or disk partition.
Given a file name instead of a directory, the behaviour of the function is unspecified and may differ between operating systems and PHP versions.
Returns the number of available bytes as a float or false on failure.
This function will not work on remote files as the file to be examined must be accessible via the server's filesystem.
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