Trying to get property of non-object in....

[cgsmith105]

Hello all you Gurus out there!

 

I hope to be contributing to this forum because I think I have some good information on PHP coding... you can be the judge in the end though .  I need your help!

 

I am communicating to about 20 nodes that spit out XML data.  The nodes are parsed through and then displayed on a main page.  They are also parsed through and then pertinent data is inserted into a database.  I received the following error recently:

 

[15-Mar-2010 11:20:25] PHP Notice:  Trying to get property of non-object in /home/maverick/public_html/ramsey/insertintodb.php on line 71

 

I commented out the line but the script still runs forever.

 

Here is inserttodb.php:

<?php
error_reporting(E_ALL);
date_default_timezone_set('America/Chicago');
require "includes/include_load.php";
require_once "classes/class_maverick.php";
include "includes/config.php";
include "includes/opendb.php";
$mav01 = new Maverick();
$mav01->ipAddress = "http://75.73.35.73:81/sm101.xml";
$mav01->loadXml();

$mav04 = new Maverick();
$mav04->ipAddress = "http://75.73.35.73:84/sm101.xml";
$mav04->loadXml();

$mav05 = new Maverick();
$mav05->ipAddress = "http://75.73.35.73:85/sm101.xml";
$mav05->loadXml();

$mav06 = new Maverick();
$mav06->ipAddress = "http://75.73.35.73:86/sm101.xml";
$mav06->loadXml();

$mav08 = new Maverick();
$mav08->ipAddress = "http://75.73.35.73:88/sm101.xml";
$mav08->loadXml();

$mav09 = new Maverick();
$mav09->ipAddress = "http://75.73.35.73:89/sm101.xml";
$mav09->loadXml();

$mav10 = new Maverick();
$mav10->ipAddress = "http://75.73.35.73:90/sm101.xml";
$mav10->loadXml();

$mav11 = new Maverick();
$mav11->ipAddress = "http://75.73.35.73:91/sm101.xml";
$mav11->loadXml();

$mav17 = new Maverick();
$mav17->ipAddress = "http://75.73.35.73:97/sm101.xml";
$mav17->loadXml();

$mav18 = new Maverick();
$mav18->ipAddress = "http://75.73.35.73:98/sm101.xml";
$mav18->loadXml();

$mav20 = new Maverick();
$mav20->ipAddress = "http://75.73.35.73:100/sm101.xml";
$mav20->loadXml();

$btu01 = new Maverick();
$btu01->ipAddress = "http://75.73.35.73:112/sm101.xml";
$btu01->loadXml();

$btu04 = new Maverick();
$btu04->ipAddress = "http://75.73.35.73:114/sm101.xml";
$btu04->loadXml();

$btu07 = new Maverick();
$btu07->ipAddress = "http://75.73.35.73:118/sm101.xml";
$btu07->loadXml();

$btu10 = new Maverick();
$btu10->ipAddress = "http://75.73.35.73:120/sm101.xml";
$btu10->loadXml();

$outside = new Maverick();
$outside->ipAddress = "http://75.73.35.73:127/pc10180.xml";
$outside->loadXml();   // Line 70 -- I think the problem is happening here... not sure
$oahumd = $outside->validXml->Sensor[0]->SensorValue;  //line 71
$oatemp = $outside->validXml->Sensor[3]->SensorValue;

$node = "Hour";
$child = "PreviousHour";
$pM1 = $mav01->getNode($node, $child);
$pM4 = $mav04->getNode($node, $child);
$pM5 = $mav05->getNode($node, $child);
$pM6 = $mav06->getNode($node, $child);
$pM8 = $mav08->getNode($node, $child);
$pM9 = $mav09->getNode($node, $child);
$pM10 = $mav10->getNode($node, $child);
$pM11 = $mav11->getNode($node, $child);
$pM17 = $mav17->getNode($node, $child);
$pM18 = $mav18->getNode($node, $child);
$pM20 = $mav20->getNode($node, $child);
$pB1 = $btu01->getNode($node, $child);
$pB4 = $btu04->getNode($node, $child);
$pB7 = $btu07->getNode($node, $child);
$pB10 = $btu10->getNode($node, $child);


$pS1 = $pM4 - ($pM5 - $pM6);
$pS2 = $pM8 - ($pM9 - $pM10 - $pM11);
$JailHVAC_Prev = $pS1 + $pS2 + $pM17 + $pM18 + $pM20;
$JailGEN_Prev = $pM1 - $JailHVAC_Prev;
$JailTOTAL_Prev = $pM1;
$DetHeat_Prev = ($pB4 + $pB7 + $pB10)*1000; //Takes kBTU to mBTU

$JailSqFt = 150896;
$kWCost = 0.069;
$mWKBTU = 0.00000029307108333;
$mbtuCost = 82.39;
$decimals = 4;

$kw2BTU= 293; //1kw to mbtu

$CurrTOTAL_Prev = ($JailTOTAL_Prev / $kw2BTU) + $DetHeat_Prev;
//$CurrTOTAL2_Prev= number_format(($CurrTOTAL_Prev/$JailSqFt), $decimals);
$CurrTOTAL3_Prev = money_format("%.2n",($CurrTOTAL_Prev)*($mWKBTU * $mbtuCost));

//$JailGEN2_Prev= number_format(($JailGEN_Prev/$JailSqFt), $decimals);
$JailGEN3_Prev= money_format("%.4n",($JailGEN_Prev*$kWCost));

//$JailHVAC2_Prev = number_format(($JailHVAC_Prev/$JailSqFt), $decimals);
$JailHVAC3_Prev = money_format("%.4n",($JailHVAC_Prev*$kWCost));

//$JailTOTAL2_Prev=number_format(($JailTOTAL_Prev/$JailSqFt), $decimals);
$JailTOTAL3_Prev=money_format("%.4n",($JailTOTAL_Prev*$kWCost));

//$DetHeat2_Prev = number_format(($DetHeat_Prev/$JailSqFt), $decimals);
$DetHeat3_Prev = money_format("%.4n",($DetHeat_Prev*($mWKBTU * $mbtuCost)));

$date = date("Y-m-d");
$time = date("h:i:A");
$sql_ins = "";
$sql_ins.= "INSERT INTO detention (";
$sql_ins.= "datestamp,timestamp,totalenergy,totalcost,genenergy,gencost,hvacenergy,hvaccost,";
$sql_ins.= "detenergy,detcost,detheatenergy,detheatcost,oatemp,oahumid)";
$sql_ins.= "VALUES ('$date','$time','$CurrTOTAL_Prev','$CurrTOTAL3_Prev','$JailGEN_Prev','$JailGEN3_Prev','$JailHVAC_Prev','$JailHVAC3_Prev',";
$sql_ins.= "'$JailTOTAL_Prev','$JailTOTAL3_Prev','$DetHeat_Prev','$DetHeat3_Prev','$oatemp','$oahumd');";

mysql_query($sql_ins);

include "includes/closedb.php";
?>

 

Any ideas would be appreciated.  The script has been working for about 48 hours (runs every hour on cron) and then it just quit... stopped putting into the database.

 

 

[Andy-H]

//$oahumd = $outside->validXml->Sensor[0]->SensorValue;
echo '<pre>' . print_r($outside->validXml->Sensor, true) . '</pre>';
exit;

 

//Edit

 

Replace that on line 71 and paste back the results...

[cgsmith105]

Hi Andy-H,

 

I tried the changes you said but unfortunately the server spit out a 500.  Here is the class "Maverick"... the function loadxml:

    public function loadXml() {  //loads xml and removes HTTP header from string
        $this->_contents = load($this->ipAddress);
        $this->_xmlDelete = substr($this->_contents, 0, (stripos($this->_contents, "<?")));
        $this->invalidXml = str_replace($this->_xmlDelete, '', $this->_contents);
        $this->validXml = simplexml_load_string($this->invalidXml);
    }

 

The load function is borrowed from http://www.bin-co.com/php/scripts/load/.

[cgsmith105]

Okay everyone.  I have narrowed it down and started testing the following:

<?php
include 'load.php';
$ipAddress = 'http://75.73.35.73:81/int2.csv';
$contents = load($ipAddress);
var_dump($contents);
exit;
?>

 

The above code produces False... but if you type in http://75.73.35.73:81/int2.csv you will receive a valid response.

 

However if you change the IP address to http://www.google.com you will see the contents are of Google. 

 

:wtf:

 

Why is this!? 

 

I tested it on two servers so far.  Load() works.  Not the IPs.

 

The weird thing is this: they were working fine prior to today.

 

 

 

[attachment deleted by admin]

[gizmola]

Maybe this seems like an obvious question, but why would you expect a set of routines that are designed to load an xml file to work ok on a file that contains comma separated values?

 

Putting that question aside... does the server utilize curl?  Notice [  if(function_exists("curl_init")  ] code in load(). 

 

 

 

 

[cgsmith105]

Gizmola,

 

I guess I do not understand exactly what functions are meant to load an XML file.  I use the load() script just to load any of the data needed for the application.  Not sure if there is a better/preferred way?  Once the address is loaded (ie Google) it puts the data into a string:

 

string(6514) 
"<!doctype html><html><head><meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"><title>Google</title><script>window.google={kEI:"mgSfS5W1L5jYerns5ZUM",kEXPI:"24029,24080",kCSI:{e:"24029,24080",ei:"mgSfS5W1L5jYerns5ZUM",expi:"24029,24080"},ml:function(){},kHL:"en",time:function(){return(new Date).getTime()},log:function(b,d,c){var a=new Image,e=google,g=e.lc,f=e.li;a.onerror=(a.onload=(a.onabort=function(){delete g[f]}));g[f]=a;c=c||"/gen_204?atyp=i&ct="+b+"&cad="+d+"&zx="+google.time();a.src=c;e.li=f+1},lc:[],li:0,Toolbelt:{}};
window.google.sn="webhp";window.google.timers={load:{t:{start:(new Date).getTime()}}};try{}catch(u){}window.google.jsrt_kill=1;
var _gjwl=location;function _gjuc(){var e=_gjwl.href.indexOf("#");if(e>=0){var a=_gjwl.href.substring(e);if(a.indexOf("&q=")>0||a.indexOf("#q=")>=0){a=a.substring(1);if(a.indexOf("#")==-1){for(var c=0;c<a.length;){var d=c;if(a.charAt(d)=="&")++d;var b=a.indexOf("&",d);if(b==-1)b=a.length;var f=a.substring(d,b);if(f.indexOf("fp=")==0){a=a.substring(0,c)+a.substring(b,a.length);b=c}else if(f=="cad=h")return 0;c=b}_gjwl.href="/search?"+a+"&cad=h";return 1}}}return 0}function _gjp(){!(window._gjwl.hash&&
window._gjuc())&&setTimeout(_gjp,500)};
window._gjp && _gjp()</script><style>td{line-height:.8em;}.gac_m td{line-height:17px;}form{margin-bottom:20px;}body,td,a,p,.h{font-family:arial,sans-serif}.h{color:#36c;font-size:20px}.q{color:#00c}.ts td{padding:0}.ts{border-collapse:collapse}em{font-weight:bold;font-style:normal}.lst{font:17px arial,sans-serif;margin-bottom:.2em;vertical-align:bottom;}input{font-family:inherit}.lsb,.gac_sb{font-size:15px;height:1.85em!important;margin:.2em;}#gbar{height:22px}.gbh,.gbd{border-top:1px solid #c9d7f1;font-size:1px}.gbh{height:0;position:absolute;top:24px;width:100%}#guser{padding-bottom:7px !important;text-align:right}#gbar,#guser{font-size:13px;padding-top:1px !important}@media all{.gb1{height:22px;margin-right:.5em;vertical-align:top}#gbar{float:left}}a.gb1,a.gb4{color:#00c !important}</style><script>google.y={};google.x=function(e,g){google.y[e.id]=[e,g];return false};</script></head><body bgcolor=#ffffff text=#000000 link=#0000cc vlink=#551a8b alink=#ff0000 onload="document.f.q.focus();if(document.images)new Image().src='/images/nav_logo7.png'" topmargin=3 marginheight=3><textarea id=csi style=display:none></textarea><iframe name=wgjf style=display:none></iframe><div id=ghead><div id=gbar><nobr><b class=gb1>Web</b> <a onclick=gbar.qs(this) href="http://images.google.com/imghp?hl=en&tab=wi" class=gb1>Images</a> <a onclick=gbar.qs(this) href="http://video.google.com/?hl=en&tab=wv" class=gb1>Videos</a> <a onclick=gbar.qs(this) href="http://maps.google.com/maps?hl=en&tab=wl" class=gb1>Maps</a> <a onclick=gbar.qs(this) href="http://news.google.com/nwshp?hl=en&tab=wn" class=gb1>News</a> <a onclick=gbar.qs(this) href="http://www.google.com/prdhp?hl=en&tab=wf" class=gb1>Shopping</a> <a href="http://mail.google.com/mail/?hl=en&tab=wm" class=gb1>Gmail</a> <a href="http://www.google.com/intl/en/options/" class=gb1 style="text-decoration:none"><u>more</u> »</a></nobr></div><div id=guser width=100%><nobr><a href="/url?sa=p&pref=ig&pval=3&q=http://www.google.com/ig%3Fhl%3Den%26source%3Diglk&usg=AFQjCNFA18XPfgb7dKnXfKz7x7g1GDH1tg" class=gb4>iGoogle</a> | <a href="/preferences?hl=en" class=gb4>Search settings</a> | <a href="https://www.google.com/accounts/Login?hl=en&continue=http://www.google.com/" class=gb4>Sign in</a></nobr></div><div class=gbh style=left:0></div><div class=gbh style=right:0></div></div> <center><br clear=all id=lgpd><img alt="Google" height=110 src="/intl/en_ALL/images/logo.gif" width=276 id=logo onload="window.lol&&lol()"><br><br><form action="/search" name=f><table cellpadding=0 cellspacing=0><tr valign=top><td width=25%> </td><td align=center nowrap><input name=hl type=hidden value=en><input name=source type=hidden value=hp><input type=hidden name=ie value="ISO-8859-1"><input autocomplete="off" maxlength=2048 name=q size=55 class=lst title="Google Search" value=""><br><input name=btnG type=submit value="Google Search" class=lsb><input name=btnI type=submit value="I&#39;m Feeling Lucky" class=lsb></td><td nowrap width=25% align=left><font size=-2>  <a href="/advanced_search?hl=en">Advanced Search</a><br>  <a href="/language_tools?hl=en">Language Tools</a></font></td></tr></table></form><br><span id=footer><center id=fctr><br><font size=-1><a href="/intl/en/ads/">Advertising Programs</a> - <a href="/services/">Business Solutions</a> - <a href="/intl/en/about.html">About Google</a></font><p><font size=-2>©2010 - <a href="/intl/en/privacy.html">Privacy</a></font></p></center></span> <div id=xjsd></div><div id=xjsi><script>if(google.y)google.y.first=[];if(google.y)google.y.first=[];google.dstr=[];google.rein=[];window.setTimeout(function(){var a=document.createElement("script");a.src="/extern_js/f/CgJlbhICdXMgACswCjhdQAgsKzAOOAwsKzAXOAYsKzAYOAUsKzAlOMqIASwrMCY4CSwrMCc4BCwrMDw4AiwrMEA4CywrMEQ4AiwrMEU4ASw/OamgJXCMX7I.js";(document.getElementById("xjsd")||document.body).appendChild(a);if(google.timers&&google.timers.load.t)google.timers.load.t.xjsls=(new Date).getTime();},0);
;google.neegg=1;google.y.first.push(function(){google.ac.m=1;google.ac.b=true;google.ac.i(document.f,document.f.q,'','','',{a:1,o:1});google.History&&google.History.initialize('/')});if(google.j&&google.j.en&&google.j.xi){window.setTimeout(google.j.xi,0);google.fade=null;}</script></div><script>(function(){
var b,d,e,f;function g(a,c){if(a.removeEventListener){a.removeEventListener("load",c,false);a.removeEventListener("error",c,false)}else{a.detachEvent("onload",c);a.detachEvent("onerror",c)}}function h(a){f=(new Date).getTime();++d;a=a||window.event;var c=a.target||a.srcElement;g(c,h)}var i=document.getElementsByTagName("img");b=i.length;d=0;for(var j=0,k;j<b;++j){k=i[j];g(k,h);if(k.complete||typeof k.src!="string"||!k.src)++d;else if(k.addEventListener){k.addEventListener("load",h,false);k.addEventListener("error",
h,false)}else{k.attachEvent("onload",h);k.attachEvent("onerror",h)}}e=b-d;function l(){google.timers.load.t.ol=(new Date).getTime();google.timers.load.t.iml=f;google.kCSI.imc=d;google.kCSI.imn=b;google.kCSI.imp=e;google.report&&google.report(google.timers.load,google.kCSI)}if(window.addEventListener)window.addEventListener("load",l,false);else if(window.attachEvent)window.attachEvent("onload",l);google.timers.load.t.prt=(f=(new Date).getTime());
})();

</script>"

 

curl is enabled on both servers.

 

 

[cgsmith105]

Hi again guys.

 

  I don't mean to be posting such fragmented finds.  It is appearing that the IP (http://75.73.35.73:81/) being used is what is causing the hang up (from what i can see).  For example: http://70.104.60.153/ works fine on a similar script.

 

  Any ideas on what to check?  The external ports are being forwarded to internal port 80s.  Like I said before... everything was working. (all the way up to about 12:00PM CST March 15th, 2010)

 

  I will be trying to install the script on a machine internal in the network to see what happens.  Its like someone flicked a dang light switch off, you know?

 

  Thanks in advance.