I am trying to access my ec2's public hostname from inside the instance.
I would like to run this command
curl http:// 169 254.169.254/latest/meta-data/public-hostname
inside a php script and save the response to a variable. How can I do this?
You can do like this
<?php
//URL of targeted site
$url = "http://www.yahoo.com/";
$ch = curl_init();
// set URL and other appropriate options
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// grab URL and pass it to the browser
$output = curl_exec($ch);
//echo $output;
// close curl resource, and free up system resources
curl_close($ch);
?>
The $output variable contains the response.
Shankar Damodaran provided an example of how to retrieve the response from a curl request, but specifically it is the
CURLOPT_RETURNTRANSFER that does as it says and returns the result from curl_exec
Related
I am using the following code to send a CURL request to send a SMS. But the SMS is being sent twice.
$message = urlencode($message);
$smsurl = "http://$url/sendmessage.php?user=matkaon&password=$password&mobile=$mobile&message=$message&sender=$sender&type=3";
$ch = curl_init($smsurl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$sentsms = curl_exec($ch);
curl_close($ch);
I tried commenting some of the lines which solved the issue but gives an output as below:
What is the proper method to send a CURL request only once?
Try this:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $smsurl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_exec($ch);
Don't pass the URL as argument on the init function.
I don't know why the function is being called twice, but I never pass the URL as argument and always work great this way.
You'd usually use curl_init() with no parameters, then pass the URL into curl_exec.
Modified example 1 from curl_exec docs:
<?php
// create a new cURL resource
$ch = curl_init();
// set URL and other appropriate options
curl_setopt($ch, CURLOPT_URL, $smsurl);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// grab URL and pass it to the browser
curl_exec($ch);
// close cURL resource, and free up system resources
curl_close($ch);
?>
I've been reading this helpful post:
http://techslides.com/hacking-the-google-trends-api
It shows how you can use cURL in command line/terminal to request data from google trends, for example;
curl --data "ajax=1&cid=actors&geo=US&date=201310" http://www.google.com/trends/topcharts/trendingchart
Gives you a big block of what I think is JSON. Below is an example of what I am doing to use cURL within my PHP to get data like this- however I cannot find anything that would get the data from the above cURL command to work in PHP like below.
<?php
//initialize session
$url = "http://www.google.com/trends/hottrends/atom/feed?pn=p1";
$ch = curl_init();
//set options
curl_setopt($ch, CURLOPT_URL, $url);
//execute session
$data = curl_exec($ch);
echo $data;
//close session
curl_close($ch);
?>
How do I go about getting the data from above?
You can do the same with the PHP cURL extension. You just need to set the options through curl_setopt, so you would do something like this
$url = "http://www.google.com/trends/topcharts/trendingchart";
$fields = "ajax=1&cid=actors&geo=US&date=201310";
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$data = curl_exec($ch);
curl_close($ch);
Now you have the response of the website in $data and you can do whatever you want with it.
You can find the PHP cURL documentation on http://php.net/curl
Try this
// Complete url with paramters
$url = "http://www.google.com/trends/topcharts/trendingchart?ajax=1&cid=actors&geo=US&date=201310";
// Init session
$ch = curl_init();
// Set options
curl_setopt($ch, CURLOPT_URL, $url);
// Set option to return the result instead of echoing it
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// Execute session
$data = curl_exec($ch);
// Close session
curl_close($ch);
// Dump json decoded result
var_dump(json_decode($data, true));
This Code is Working Well
<?php
// create curl resource
$ch = curl_init();
// set url
curl_setopt($ch, CURLOPT_URL, "http://ipdev.in/");
//return the transfer as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// $output contains the output string
$output = curl_exec($ch);
echo $output;
// close curl resource to free up system resources
curl_close($ch);
?>
But below two bunch of codes are not working. I am not getting an error but in these cases browser loading bar is just revolving and revolving and never stops. The page shows loading and loading for a long time but nothing loads from URL. Where is the problem ?
<?php
// create curl resource
$ch = curl_init();
// set url
curl_setopt($ch, CURLOPT_URL, "https://iiitd.ac.in/");
//return the transfer as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// $output contains the output string
$output = curl_exec($ch);
echo $output;
// close curl resource to free up system resources
curl_close($ch);
?>
<?php
// create curl resource
$ch = curl_init();
// set url
curl_setopt($ch, CURLOPT_URL, "http://iiitd.ac.in");
//return the transfer as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// $output contains the output string
$output = curl_exec($ch);
echo $output;
// close curl resource to free up system resources
curl_close($ch);
?>
the link https://iiitd.ac.in/ is redirecting to https://www.iiitd.ac.in/ so you need to modify your curl code. You need to set CURLOPT_FOLLOWLOCATION as true.
Have a look on below solution:
<?php
// create curl resource
$ch = curl_init();
// set url
curl_setopt($ch, CURLOPT_URL, "https://iiitd.ac.in/");
//return the transfer as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// added follow location
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
// $output contains the output string
$output = curl_exec($ch);
echo $output;
// close curl resource to free up system resources
curl_close($ch);
I'm trying to get some data from a website that is not mine, using this code.
<?
$text = file_get_contents("https://ninjacourses.com/explore/4/");
echo $text;
?>
However, nothing is being echo'd, and the string length is 0.
I've done this method before, and it has worked no problem, but with this website, it is not working at all.
Thanks!
I managed to get the contents using curl like this:
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, "https://ninjacourses.com/explore/4/");
$result = curl_exec($ch);
curl_close($ch);
cURL is a way you can hit a URL from your code to get a html response from it. cURL means client URL which allows you to connect with other URLs and use their responses in your code
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, "https://ninjacourses.com/explore/4/");
$result = curl_exec($ch);
curl_close($ch);
i think this is useful for you curl-with-php and another
I am trying to fire a HTTP GET request on a secured URL which asks for username and password. This is fine when I am using that from browser but I am not sure how to do that using PHP.
I have tried using the two methods:
1) Using Curl as suggested in here: Make a HTTPS request through PHP and get response
2) Using the file_get_contents as suggested in here: How to send a GET request from PHP?
But the first one didn't give me any response back. And the second one gave me the following error:
failed to open stream: HTTP request failed
And this is my code for the curl:
$url="https://xxxxx.com";
$ch=curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);
echo $response;
and for the file_get_contents:
$url="https://xxxx.com";
$response=file_get_contents($url);
echo $response;
The URL will return a XML response for a API I am testing. Can someone point me to the right direction?
Thanks!
If we focus on the requirement to send a username and password because I suspect that's your main problem, try this
$ch = curl_init();
$url="https://xxxxx.com";
// OR - check with your server's operator
$url="http://xxxxx.com";
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERPWD, "$username:$password");
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
// or maybe
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
// - see http://stackoverflow.com/questions/4753648/problems-with-username-or-pass-with-colon-when-setting-curlopt-userpwd
// check the cURL documentation
$output = curl_exec($ch);
$info = curl_getinfo($ch);
// don't forget to check the content of $info, even a print_r($info) is better
// than nothing during debug
curl_close($ch);