note 107629 added to function.rrd-info
| From: | cfsalguero at gmail dot com | Date: | Wed, 22 Feb 2012 15:45:25 +0000 |
| Subject: | note 107629 added to function.rrd-info | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-186281@lists.php.net to get a copy of this message | ||
rrd_info will return an array where the keys are all strings that represents another arrays like in
this example:
Array
(
[filename] => /var/www/cacti/rra/localhost_mem_swap_26.rrd
[rrd_version] => 0003
[step] => 300
[last_update] => 1329924661
[header_size] => 1892
[ds[mem_swap].index] => 0
[ds[mem_swap].type] => GAUGE
[ds[mem_swap].minimal_heartbeat] => 600
[ds[mem_swap].min] => 0
[ds[mem_swap].max] => NAN
[ds[mem_swap].last_ds] => 2084332
[ds[mem_swap].value] => 127144252
[ds[mem_swap].unknown_sec] => 0
[rra[0].cf] => AVERAGE
[rra[0].rows] => 600
[rra[0].cur_row] => 266
[rra[0].pdp_per_row] => 1
[rra[0].xff] => 0.5
[rra[0].cdp_prep[0].value] => NAN
[rra[0].cdp_prep[0].unknown_datapoints] => 0
)
I made a function that converts that into a real array structure:
<?php
function rrdinfo($filename) {
/*
Inner functions to make them inaccesible from the outside of the main function
*/
function add($key, $value, &$main_table) {
if (is_array($value)) {
foreach ($value as $k => $v) {
add($k, $v, $main_table[$key]);
}
} else {
$main_table[$key] = $value;
}
}
function toobj($key, $value) {
$matches = array();
if (preg_match('/^\[(.*)\]$/', $key, $matches)) {
$key = $matches[1];
}
if (preg_match('/(.*?)\[(.*?)\]\.(.*)/', $key, $matches)) {
$matches2 = array();
if (preg_match('/(.*?)\[(.*?)\]\.(.*)/', $matches[3], $matches2)) {
$ret_key = $matches[1];
list($k, $v) = toobj($matches[3], $value);
$ret_val = array($matches[2] => array($k => $v));
} else {
$ret_key = $matches[1];
$ret_val = array($matches[2] => array ($matches[3] => $value));
}
} else {
$ret_key = $key;
$ret_val = $value;
}
return array($ret_key, $ret_val);
}
/*
Main program code
*/
$main_table = array();
$info = rrd_info($filename);
foreach ($info as $ds_key => $ds_value) {
list ($key, $value) = toobj($ds_key, $ds_value);
add($key, $value, $main_table);
}
return $main_table;
}
And this is the way to use it:
$filename = "/path/to/your/rrd/file/localhost_mem_swap_26.rrd";
$info = rrdinfo($filename);
----
Server IP: 69.147.83.197
Probable Submitter: 190.55.70.73
----
Manual Page -- http://www.php.net/manual/en/function.rrd-info.php
Edit -- https://master.php.net/note/edit/107629
Del: integrated -- https://master.php.net/note/delete/107629/integrated
Del: useless -- https://master.php.net/note/delete/107629/useless
Del: bad code -- https://master.php.net/note/delete/107629/bad+code
Del: spam -- https://master.php.net/note/delete/107629/spam
Del: non-english -- https://master.php.net/note/delete/107629/non-english
Del: in docs -- https://master.php.net/note/delete/107629/in+docs
Del: other reasons-- https://master.php.net/note/delete/107629
Reject -- https://master.php.net/note/reject/107629
Search -- https://master.php.net/manage/user-notes.php