win_is_writable

Source code

function win_is_writable( $path ) {

	/* will work in despite of Windows ACLs bug

	 * NOTE: use a trailing slash for folders!!!

	 * see http://bugs.php.net/bug.php?id=27609

	 * see http://bugs.php.net/bug.php?id=30931

	 */



	if ( $path[strlen( $path ) - 1] == '/' ) // recursively return a temporary file path

		return win_is_writable( $path . uniqid( mt_rand() ) . '.tmp');

	else if ( is_dir( $path ) )

		return win_is_writable( $path . '/' . uniqid( mt_rand() ) . '.tmp' );

	// check tmp file for read/write capabilities

	$should_delete_tmp_file = !file_exists( $path );

	$f = @fopen( $path, 'a' );

	if ( $f === false )

		return false;

	fclose( $f );

	if ( $should_delete_tmp_file )

		unlink( $path );

	return true;

}