i am completely new to php from python. in python, i am fairly familiar with getting json results from webpages. however whatever i seem to do in php is not working. the code i am using is.
<?php
$url = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=hello&safe=off";
$data = json_decode(file_get_contents($url));
echo $data;
?>`
yet this does absolutely nothing. is there anything wrong with what i am doing? also i ran it through ideone.com and got these errors.
`PHP Warning: file_get_contents(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/VQMKwy/prog.php on line 3
PHP Warning:file_get_contents(http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=hello&safe=off): failed to open stream: php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/VQMKwy/prog.php on line 3`
As soon as you'll solve the problem posted above (which seems related to your server configuration, as file_get_contents works fine for me) you'll encounter another error.
json_decode will return an object of class stdClass. You can't just echo that out.
The fastest way to echo an array is to use
var_dump($data);
apart from that, the code runs fine on my local machine. I've just replaced echo with var_dump
The hint posted by Rob should solve the problem but if it doesn't and if you're running on Apache try to run this command:
sudo rc.d stop httpd; sudo rc.d start httpd
this will force Apache to stop and start thus updating /etc/resolv.conf
Related
I am no coder at all. Started learning html and php and bumped into a problem. There a few similar questions, but with my skill, I am not able to implement solutions.
$url = "https://www.bitstamp.net/api/ticker/";
$fgc = file_get_contents($url);
$json = json_decode($fgc, true);
$price = $json["last"];
$high = $json["high"];
$low = $json["low"];
$date = date("m-d-Y - h:i:sa");
$open = $json["open"];
After launching XAMPP on my machine and uploading php file, I get returned:
Warning: file_get_contents(): php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in /opt/lampp/htdocs/crypto_ticker/api.php on line 5
Warning: file_get_contents(https://www.bitstamp.net/api/ticker/): failed to open stream: php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in /opt/lampp/htdocs/crypto_ticker/api.php on line 5
Would someone please let me know what does that mean? Inability to connect to the page? The page loads itself perfectly fine, so must be something missing on my side.
And what do I do then?
Thank you in advance
Based on the error (Temporary failure in name resolution), it appears to be an issue with the PHP server accessing the website (bitstamp.net). While your web browser might be able to access it, the PHP service on the XAMPP server may not be able to communicate properly with it.
Try running nslookup www.bitstamp.net to ensure that a response is, in fact, provided. If it does resolve, try ensuring your connection is not incorrectly passing through a proxy and ensure your DNS settings are correct.
Based on other responses (https://stackoverflow.com/a/6361464/9549215), ensuring your ServerName directive in your Apache2 Virtual Host is correctly set MAY solve the issue; I have not tested this.
Best of luck with your problem!
You can see the exact error in your output.
Temporary failure in name resolution
so you can't resolve the hostname "www.bitstamp.net". So you should check if you server has the correct DNS settings and can resolve the domain. You can use nslookup or dig to check it.
I'm just beginning with Symfony 3 but I'm stuck with a built-in server issue.
I am using wamp64 v3.0.6 with PHP 7.1.9 (and PHPStorm as IDE) on Windows 7.
I ran the built-in server once and got a response from localhost:8000 correctly but then, just like [this issue][1], I get the following error message when I try to access localhost:8000 on subsequent tries :
Warning: Unknown: failed to open stream: No such file or directory in Unknown on line 0
Fatal error: Unknown: Failed opening required'C:\wamp64\www\projectname\vendor\symfony\symfony\src\Symfony\Bundle\WebServerBundle/Resources/router.php' (include_path='.;C:\php\pear') in Unknown on line 0
I've tried uninstalling symfony, wamp64 and PHPstorm to try to identify the problem.
After reinstalling wamp (without running the server) and symfony I've noticed the following :
When I run the built-in server for the first time and immediately access localhost:8000, it works fine. But then the server stops without my pressing CTRL-C. When I restart the server and try to access localhost:8000 I now get said error message.
I've tried creating a another project using PHP 7.0.23 with the same results : once the server crashes, I can no longer load my project.
I'm hoping someone can provide an answer as regarding this issue. I've spent the past few hours searching the web for an answer and have found none.
Thanks in advance.
Credit goes to Baig for this answer :
The source of the issue lies with the antivirus. To solve this, I've excluded the wamp directory (where symfony and my projects are also stored) from my antivirus and, voila, no more server crashes, everything works fine.
i am trying to use googles geoloacating api with php: file_get_content.
This works fine on my testsystem but it wont work live. The code is excatly the same and the servers are also the same. I got some errormails like:
file_get_contents(): php_network_getaddresses: getaddrinfo failed:
Name or service not known
allow_url_fopen is available and curl is also available.
I alsso tryed the same with curl but the result was the same live didnt work.
Hope some of you can give me some tips.
I wrote a PHP script to run as a cron job and it wasn't running. The script worked fine in the browser, but I discovered when I ran it from the command line that I got this error:
Warning: oci_connect(): ORA-12154: TNS:could not resolve the connect identifier specified in /usr/apps/webdata/cron/PropogateDB.php on line 190
The line in question is:
$conn_NRB = oci_connect($user, $pass, "nrb.njbbnrbpd1");
As I said this script works fine in the browser.
I did some digging around and found the configuration settings for the database. I then tried this:
$conn_NRB = oci_connect($user, $pass, "(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SID=nrb)))");
With this code both the command line and the browser give me this error:
Warning: oci_connect() [function.oci-connect]: ORA-01017: invalid username/password; logon denied in /usr/apps/webdata/cron/PropogateDB.php on line 191
As far as I know there are no other usernames and passwords that I can use. (I'm trying to verify that now.)
I searched around on this site and discovered someone else with a similar problem, although his problem was reversed, and his cause was that the command line and the browser pointed to two different php.ini files. I just confirmed that both the browser and the command line invoke the same php.ini file. They both point to:
Configuration File (php.ini) Path => /usr/local/php/lib
Is there any other reason why a script would work in the browser but fail in the command line? I'm relatively new to Oracle SQL and I don't have direct access to the database so I'm not sure where to go from here.
Thanks.
The 'EasyConnect' string
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SID=nrb)))
refers to localhost. 'In the browser' likely means: on the server (where the PHP script executes).
Unless you run the test on the command - line of the same server, you should change the connect string to refer to the Database server (which might be simply the host name of your web-server).
Beware of firewall restrictions that may come in the way. Prefer to use your company's tnsnames.ora to resolve database instances identifiers to their connect strings, if possible.
I am having DNS issues with a certain target domain. I am using fopen() (but same issue with other functions) to retreive an image, but I get this error:
Warning: fopen(): php_network_getaddresses: getaddrinfo failed: No such host is known
I am able to ping or nslookup the domain from the command prompt, but for some reason php throws this error. When I try fopen('http://www.google.com', r); or other domains, all goes fine. But above mentioned domain simply won't resolve with PHP. I have flushed the DNS, restarted Apache, but still no luck..
I have tried with:
Windows 7, Apache 2.2 PHP 5.3.6
Windows server 2008r2, Apache 2.2 PHP 5.3.6
What can cause this single domain to not resolve?
IMO it's the different way to resolve a name from the OS and PHP.
Try:
echo gethostbyname("host.name.tld");
and
var_export (dns_get_record ( "host.name.tld") );
or
$dns=array("8.8.8.8","8.8.4.4");
var_export (dns_get_record ( "host.name.tld" , DNS_ALL , $dns ));
You should found some DNS/resolver error.
Your "localhost" cannot resolve the name www.google.com, which means your machine doesn't/can't reach a valid dns server.
Try ping google.com on the console of that machine to verify this.
It is more flexible to use curl instead of fopen and file_get_content for opening a webpage.
getaddrinfo failed: No such host is known
The above error is caused due to mistake in Database Host (DB_HOST) in .env file
Open the .env file and Specially check for this env variables
DB_HOST=localhost
DB_DATABASE=database_name
DB_USERNAME=database_username
DB_PASSWORD=database_password
Your target domain might refuse to send you information. This can work as a filter based on browser agent or any other header information. This is a defense against bots, crawlers or any unwanted applications.
I had a lot of issues with this on Windows. I just performed git clone, copied my .env.example file to .env. updated it, and executed my trusty PHP script to update initial database used for a project. And it failed, and whatever I did, it kept on failing. Out of desperation, I reinstalled MySQL, but that didn't fix things.
Finally, I figured it out. PHP script extracted the settings from .env file using file_get_contents(), and exploding it using \n, but the .env file was encoded with CRLF, so my DB_HOST was empty. After I changed the encoding of the .env file, everything was fine.
So, my point is, echo the parameters supplied to mysqli::construct, and it might be the culprit.
A weird thing I found was that the environment variable SYSTEMROOT must be set otherwise getaddrinfo() will fail on Windows 10.
What had caused this error on my side was the following line
include_once dirname(__FILE__) . './Config.php';
I managed to realize it was the culprit when i added the lines:
//error_reporting(E_ALL | E_DEPRECATED | E_STRICT);
//ini_set('display_errors', 1);
to all my php files.
To solve the path issue i canged the offending line to:
include_once dirname(__FILE__) . '/Config.php';