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| Author |
Message |
apereira
Joined: 29 Sep 2008
Posts: 12
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 Posted: Fri Nov 21, 2008 7:03 am Post subject: Problem with a script in PHP, it is instable, some help? |
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I found a script on a blog, that make a page load statistics, its easy to configure, but is instable too, sometime it returns all parameters and other times it returns just one parameter.
I'll post here this script, and explain more what are running here.
PHP: class.pageload.php
| Code: | <?php
class PageLoad {
var $siteURL = "";
var $pageInfo = "";
/*
* sets the URLs to check for loadtime into an array $siteURLs
*/
function setURL($url) {
if (!empty($url)) {
$this->siteURL = $url;
return true;
}
return false;
}
/*
* extract the header information of the url
*/
function doPageLoad() {
$u = $this->siteURL;
if(function_exists('curl_init') && !empty($u)) {
$ch = curl_init($u);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_ENCODING, "gzip");
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_NOBODY, false);
curl_setopt($ch, CURLOPT_FRESH_CONNECT, false);
curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)");
$pageBody = curl_exec($ch);
$this->pageInfo = curl_getinfo($ch);
curl_close ($ch);
return true;
}
return false;
}
/*
* compile the page load statistics only
*/
function getPageLoadStats() {
$info = $this->pageInfo;
//stats from info
/* $s['dest_url'] = $info['url'];
$s['content_type'] = $info['content_type'];
$s['http_code'] = $info['http_code'];
$s['total_time'] = $info['total_time'];
$s['size_download'] = $info['size_download'];
$s['speed_download'] = $info['speed_download'];
$s['redirect_count'] = $info['redirect_count'];
$s['namelookup_time'] = $info['namelookup_time'];
$s['connect_time'] = $info['connect_time'];
$s['pretransfer_time'] = $info['pretransfer_time'];
$s['starttransfer_time'] = $info['starttransfer_time'];
*/
return $info;
}
}
?> |
PHP: pageload-agent.php
| Code: | <?php
//include the class
include_once 'class.pageload.php';
// read in an argument - must make sure there's an argument to use
if ($argc==2) {
//read in the arg.
$url_argv = $argv[1];
if (!eregi('^https://', $url_argv)) {
$url_argv = "https://$url_argv";
}
// check that the arg is not empty
if ($url_argv!="") {
//initiate the results array
$results = array();
//initiate the class
$lt = new PageLoad();
//set the page to check the loadtime
$lt->setURL($url_argv);
//load the page
if ($lt->doPageLoad()) {
//load the page stats into the results array
$results = $lt->getPageLoadStats();
} else {
//do nothing
print "";
}
//print out the results
if (is_array($results)) {
//expecting only one record as we only passed in 1 page.
$output = $results;
print "dns:".$output['namelookup_time'];
print " con:".$output['connect_time'];
print " pre:".$output['pretransfer_time'];
print " str:".$output['starttransfer_time'];
print " ttl:".$output['total_time'];
print " sze:".$output['size_download'];
print " spd:".$output['speed_download'];
} else {
//do nothing
print "";
}
}
} else {
//do nothing
print "";
}
?> |
Let's go...
This is a PHP script, just need a Data Input Method, Data Source and the Graph to get its working, right...
In this script on pageload-agent.php return 5 parameters (con, dns, ttl, str, pre), when it is runing on command line, allways return all parameters.... but when its runing on Cacti, it return sometimes all parameters... but almost all polling just return the parameter "dns".
So, on graph I have gaps just in some parameters, and DNS allways work. I'll atach a ss to check waht I m talking about.
What can be the reason of this problem? I made all step by step, I've checked all points... and its allright... Well this script can be very usefull if works.
The blog where I found this script is:
http://www.askaboutphp.com/tutorials/44/cacti-using-cacti-to-monitor-web-page-loading-part-1.html
Hope someone can understand this problem and help me.
Thx!
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gandalf
Developer
Joined: 02 Dec 2004
Posts: 12642
Location: Muenster, Germany
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| Posted: Sat Nov 22, 2008 4:58 am Post subject: |
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Please _always_ spit out the parms on a single "print" statement. Cacti will not wait 'til the next "print" occurs
Reinhard
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