Recently I have been experimenting with making my own rudimentary search engine. Things have been going smoothly as I have the URL's and URL hashes logged into my phpMyAdmin database, no title or descriptions were logged but the program did work with sites such as YouTube, Google, and a local music venue. However recently I have encountered an error that I can't seem to fix and is stopping new websites from being added to my table and I have been receiving this error message:
Notice: Trying to get property 'nodeValue' of non-object in C:\xampp\htdocs\se\index.php on line 22
I have tried making slight adjustments, such as ensuring that the item is an object by using a code
if (is_object($title ->item(0))) {
$title = $title->item(0)->nodeValue;
}
// Does not work, PHP Recoverable fatal error: Object of class DOMNodeList could not be converted
// to string...
but this only lead to an issue that would not allow the program to move forward.
here is the preceding code up until the error
$already_crawled = array();
$crawling = array();
function get_details($url) {
$options = array('http' => array('method' => "GET", 'headers' => "User-Agent: howBot/0.1\n"));
$context = stream_context_create($options);
$doc = new DOMDocument();
#$doc->loadHTML(#file_get_contents($url, false, $context));
$title = $doc->getElementsByTagName("title");
$title = $title->item(0)->nodeValue; // error occurs here
I am using php7 and I'm still relatively new to it so any other advice would help. Thanks
Related
I am trying to run the following code with the new Google Business Profile API:
$mybusinessbusinessinformationService = new Google\Service\MyBusinessBusinessInformation($client);
try
{
$locations = $mybusinessbusinessinformationService->accounts_locations->call('list',['parent'=>'accounts/1111111111111111111']);
var_dump($locations);
} catch(Exception $e){
var_dump(print_r($e->getMessage(),1));
}
But I am getting the following error:
(list) missing required param: 'parent'
As far as I can tell it seems that I am parsing the param properly.
For people that are searching for an answer:
Since Google updated its API, it's a requirement to parse readMask as well:
$mybusinessbusinessinformationService = new Google\Service\MyBusinessBusinessInformation($client);
$params = array('readMask'=> "title,name");
$locations = $mybusinessbusinessinformationService->accounts_locations->listAccountsLocations($getAccountName,$params);
var_dump($locations);
You can find the mask parameters here:
https://developers.google.com/my-business/reference/businessinformation/rest/v1/locations
So I have been working on a school project and have gotten this code for a website to work sometimes but other times it returns the error:
Notice: Trying to get property of non-object in C:\xampp\htdocs\schoolproj\getdata.php on line 27
Notice: Trying to get property of non-object in C:\xampp\htdocs\schoolproj\getdata.php on line 27
Ask
Notice: Trying to get property of non-object in C:\xampp\htdocs\schoolproj\getdata.php on line 39
Notice: Trying to get property of non-object in C:\xampp\htdocs\schoolproj\getdata.php on line 39
for the php code:
<html>
<body>
<?php echo $_POST['name']; ?>!<br>
<?php
$endpoint = "http://query.yahooapis.com/v1/public/yql";
$ticker = "'".$_POST["ticker"]."'";
$query = urlencode("env 'store://datatables.org/alltableswithkeys';select * from yahoo.finance.quotes where symbol in (".$ticker.")");
$ch = curl_init($endpoint.'?q='.$query. '&format=json');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
if (curl_error($ch)){
die(curl_error($ch));
}
curl_close($ch);
//echo'<pre>';
$result = json_decode($result);
$symbol = $result->query->results->quote->symbol;
print_r($symbol);
?>
Ask
<?php
$Ask = $result->query->results->quote->Ask;
print_r($Ask);
?>
</body>
</html>
I was wondering if anyone had some advice as to how I could permanently fix the problem or have some sort of error handling. I am new to this so any help would be great. Thanks!
The problematic lines if the code you gave is the whole getdata.php file are:
l.27: $symbol = $result->query->results->quote->symbol;
l.39: $Ask = $result->query->results->quote->Ask;
And the error is telling you that at one point in this your are accessing a property of something that is not an object.
Considering you are saying it sometimes work and sometimes doesn't, it's likely that there are occasional errors, either in your query (depending on your input) or with datatables.org (see this old question on developer.yahoo which indicates that queries would fail when datatables.org doesn't respond).
Then if there is an error, the json you receive will have a structure like below (this is an error I got initially when trying your code because I had forgottent to enclose the ticker in quotes).
{
"error": {
"lang":"en-US",
"description":"Query syntax error(s) [line 1:95 mismatched input 'in' expecting ISNOTNULL]"
}
}
In this result you don't have the query attribute and thus is fails when you try to access it. You should then first check if there is an error (looking for the error attribute), and only if there is none try and access the query results.
To check for the error, you could use something like
if (property_exists($result, "error")) {
// your error handling
} else {
// your current code accessing the results
}
I am not a hardcore coder but i have small knowledge i have attempted to fix this error we are getting regarding the Twitter api
there is a line of code that checks that a twitter name is currect which is sent via a form
$url = get_data("http://api.twitter.com/1/users/lookup.json?screen_name=".$name);
$xml = json_decode($url, true);
$id = $xml[0]['id'];
$av = $xml[0]['profile_image_url'];
if ($id != "")
What i understand
I understand that this version of twitter is no longer available and i need to update it to 1.1
What searching and research i have done
I have Searched the net for a quick answer for this but was not able to find any....
I have found this code https://github.com/abraham/twitteroauth/tree/master/twitteroauth
My question
How do i adapt the files to work within this file? i didnt post the whole code within the page as im not sure all of it is relevant.
Just use the 1.1 in the URL. That will do
http://api.twitter.com/1.1/users/lookup.json
-------^
Do like this...
$connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, OAUTH_TOKEN,OAUTH_SECRET);
$account = $connection->get('account/verify_credentials');
$status = $connection->post('statuses/update', array('status' => 'Text of status here', 'in_reply_to_status_id' => 123456));
$status = $connection->delete('statuses/destroy/12345');
Documentation
Ok, so following some instructions I found in another post here on StackOverflow, I have constructed a script to get a fan pages feed and turn it into an RSS2 feed. However, the script required a few changes and Im not the best programmer in the world, so I need a little help.
Im getting this error:
Warning: Invalid argument supplied for foreach() in feed.php on line 48
Im not sure what the invalid argument is all about.
<?
// error reporting
echo '<pre>';
ini_set('display_errors', 'on');
error_reporting(E_ALL);
// require your facebook php sdk
require('./facebook/facebook.php');
// include the feed generator feedwriter file
include("./feed/FeedWriter.php");
// config secret key and appid
$config = array(
'appId' => '',
'secret'=> ''
);
// Initialize
$facebook = new Facebook($config);
// Set Apps Permissions Request
$permission_scope = "";
// get users access token
$access_token = $facebook->getAccessToken();
// get page post
$feed_url = 'https://www.facebook.com/Ritualdubstep/feed?access_token='.$access_token;
$feed_json = file_get_contents($feed_url);
$feed_data = json_decode($feed_json);
// create the feedwriter object
$feed = new FeedWriter(RSS2);
$feed->setTitle('Ritual Dubstep'); // set your feed title
$feed->setLink('https://www.facebook.com/Ritualdubstep'); // set the url to the feed page you're generating
$feed->setChannelElement('updated', date(DATE_RSS , time()));
$feed->setChannelElement('author', array('name'=>'Ritual Dubstep SF')); // set the author name
// iterate through the facebook response to add items to the feed
foreach($feed_data['data'] as $entry){
if(isset($entry["message"])){
$item = $feed->createNewItem();
$item->setTitle($entry["from"]["name"]);
$item->setDate($entry["updated_time"]);
$item->setDescription($entry["message"]);
if(isset($entry["link"]))
$item->setLink(htmlentities($entry["link"]));
$feed->addItem($item);
}
}
// generate feed
$feed->genarateFeed();
?>
Generally it means that the first argument in the foreach call (in this case $feed_data['data']) is not a valid array.
Make sure that $feed_data['data'] exists (isset($feed_data['data'])) and that it is an array (is_array($feed_data['data'])) before running entering the foreach loop.
And - as shapeshifter mentioned in the comments - you might want to start troubleshooting by var_dump($feed_data['data']) right before you start the foreach loop to see what's being generated.
I use JasperServer and PHP JavaBridge to generate PDF reports via JasperServer inside PHP. I get compile error because of missing (unassigned) parameter passed to JRXML compiler
Fatal error: Uncaught [[o:Exception]:
"java.lang.Exception: Invoke failed:
[[c:JasperCompileManager]]->compileReport((o:String)[o:String]).
Cause: net.sf.jasperreports.engine.design.JRValidationException:
**Report design not valid** : 1. **Query parameter not found** : db_field_id VM:
1.6.0_18#http://java.sun.com/" at: #-12
net.sf.jasperreports.engine.design.JRAbstractCompiler.verifyDesign(JRAbstractCompiler.java:258)
I cant find a way to pass my
$params = new Java("java.util.HashMap");
foreach ($jrxml_params as $key => $jr_param) $params->put($key, $jr_param);
list of params to the compile method nor I can disable this verification by
$japser_props = new JavaClass("net.sf.jasperreports.engine.util.JRProperties");
$japser_props->COMPILER_XML_VALIDATION = false;
Here is what I use to generate PDF (works fine if JRXML file doesn't contain $P{} pamareters and halts otherwise)
$class = new JavaClass("java.lang.Class");
$class->forName("com.mysql.jdbc.Driver");
$driverManager = new JavaClass("java.sql.DriverManager");
$conn = $driverManager->getConnection("jdbc:mysql://localhost:3306/XXX?user=XXX&password=1234");
$compileManager = new JavaClass("net.sf.jasperreports.engine.JasperCompileManager");
$report = $compileManager->compileReport(realpath("/www/some.jrxml"));
$params = new Java("java.util.HashMap");
foreach ($jrxml_params as $key => $jr_param) $params->put($key, $jr_param);
$jasperPrint = $fillManager->fillReport($report, $params, $conn);
$exportManager = new JavaClass("net.sf.jasperreports.engine.JasperExportManager");
$outputPath = realpath(".")."/"."output.pdf";
$exportManager->exportReportToPdfFile($jasperPrint, $outputPath);
How do I avoid this error, I know what I need to pass and I don't know a way to do it, can't I just pass params to fillManager?
$japser_props = new JavaClass("net.sf.jasperreports.engine.util.JRProperties");
$japser_props->setProperty('net.sf.jasperreports.compiler.xml.validation',true);
this is the way to set property from PHP but that's not the problem. It turns out everything was fine, I've missed parameter declaration before my MySQL query... Put
<parameter name="db_field_id" class="java.lang.Integer">
in your JRXML before you use it as $P{db_field_id} now it compliles fine and later
$jasperPrint = $fillManager->fillReport($report, $params, $conn);
parameters are assigned at fill time