RRDGraph::setOptions

(PECL rrd >= 0.9.0)

Sets the options for rrd graph export

public void RRDGraph::setOptions ( array $options )

Parameters:

options

List of options for the image generation from the RRD database file. It can be list of strings or list of strings with keys for better readability. Read the rrd graph man pages for list of available options.

Returns:

No value is returned.

Examples:

RRDGraph::setOptions() example

<?php
$graphObj->setOptions(array(
    "--start" => "920804400",
    "--end" => 920808000,
    "--vertical-label" => "m/s",
    "DEF:myspeed=$rrdFile:speed:AVERAGE",
    "CDEF:realspeed=myspeed,1000,*",
    "LINE2:realspeed#FF0000"
));
?>

Set multiple color options

<?php
$graphObj->setOptions(array(
    "--start" => "920804400",
    "--end" => 920808000,
    "--vertical-label" => "m/s",
    "--color=BACK#00000000",
    "--color=GRID#00000000",
    "--color=MGRID#00000000",
    "DEF:myspeed=$rrdFile:speed:AVERAGE",
    "CDEF:realspeed=myspeed,1000,*",
    "LINE2:realspeed#FF0000"
));
?>

Don't use key value syntax for same rrd option. It looks more readable, but it doesn't work.

<?php
$graphObj->setOptions(array(
    "--color" => "BACK#00000000",
    "--color" => "GRID#00000000",
    "--color" => "MGRID#00000000"
));
?>

In nature of php it's same as

<?php
$graphObj->setOptions(array(
    "--color" => "MGRID#00000000"
));
?>

Links:

http://php.net/manual/en/rrdgraph.setoptions.php

doc_php

2016-02-24 16:09:50

Comments