# rrd_update

(PECL rrd >= 0.9.0)

rrd_update — Updates the RRD database

### 说明

rrd_update ( string `$filename` , array `$options` ) : bool

Updates the RRD database file. The input data is time interpolated according to the properties of the RRD database file.

### 参数

`filename`

  RRD database file name. This database will be updated.

`options`

  Options for updating the RRD database. This is list of strings. See man page of rrd update for whole list of options.

### 返回值

Returns `TRUE` on success, `FALSE` when error occurs.