eio_sync(3) php man page | unix.com

EIO_SYNC(3)								 1							       EIO_SYNC(3)

eio_sync - Commit buffer cache to disk

SYNOPSIS
       resource eio_sync ([int	$pri = EIO_PRI_DEFAULT], [callable  $callback = NULL], [mixed  $data = NULL])

DESCRIPTION
PARAMETERS
       This function has no parameters.

RETURN VALUES
       eio_sync(3) returns request resource on success or FALSE on error.

PHP Documentation Group 													       EIO_SYNC(3)