I am using Wialon SDK and I am trying to get a map, everything works fine but it returns a result with image code, and outputs some question marks, (don't know how to explain it, but when you open img file in notepad or something like that) how can I save the output into a png file or display it on web?
here is the function
function get_map($sid){
$params = array(
"width" => 600,
"height" => 600
);
$url = "mywebpage.com/ajax.html?svc=report/get_result_map";
$json = json_encode($params);
$ch = curl_init($sid);
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS,"¶ms=".$json."&ssid=".$sid);
$server_output = curl_exec($ch);
curl_close($ch);
return $server_output;
}
and I call it like this:
$get_map = $pro->get_map($sid);
var_dump($get_map);
In PHP you need to set the HEADER to tell the browser to display this data as an image.
<?php
header('Content-Type: image/png');
echo $get_map; // The PNG data
?>
That should do the trick.
Related
Cannot grab pictures from the specific site with PHP, but with PYTHON is working for this site, how to download images via PHP?
image URL is https://www.autoopt.ru/product_pictures/big/bcb/054511.jpg
If I paste another URL, of another site, the picture is downloading, but this site doesn't work.
i try with file put content and so on, my last code is
<?php
function downloadImage($img_url){
$image = file_get_contents($img_url);
$img_save_path = realpath(dirname(__FILE__)) . '/assets/upload_products/';
$image_name = basename($img_url);
$image_fullpath = $img_save_path.$image_name;
$ch = curl_init ($img_url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
$raw=curl_exec($ch);
curl_close ($ch);
if(file_exists($image_fullpath)){
unlink($image_fullpath);
}
$fp = fopen($image_fullpath,'x');
fwrite($fp, $raw);
fclose($fp);
return true;
}
downloadImage('https://www.autoopt.ru/product_pictures/big/bcb/054511.jpg');
You dont need to do all that to save the picture if your going to use file_get_contents. It can be done by only using:
file_put_contents($image_fullpath, file_get_contents($img_url));
Also, like mentioned by OMi Shash in the comments, you'll need to pass header info to file_get_contents for it to work with that url. I've just done the test and it worked.
//set header info
$opts = array('http'=>array('header' => "User-Agent:MyAgent/1.0\r\n"));
//Basically adding headers to the request
$context = stream_context_create($opts);
file_put_contents($image_fullpath, file_get_contents($img_url, false, $context));
Edit: I contact the support at scrapestack and confirmed that their api doesn't support image files.
I am trying to download a remote image using CURL with php. Below is my code. But whenever I try to open the downloaded image, I always get:
Cannot read this file. This is not a valid bitmap file, or its format is not currently supported.
Anyone know what is wrong with my code? Thank you.
$image ="http://api.scrapestack.com/scrape?access_key=TOKEN-HERE&url=https://i.imgur.com/Cbiu8Ef.png";
$imageName = pathinfo( $image, PATHINFO_BASENAME );
$ch = curl_init();
curl_setopt( $ch, CURLOPT_URL, $image );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTP_CONTENT_DECODING, false);
$source = curl_exec( $ch );
$info = curl_getinfo($ch);
curl_close( $ch );
file_put_contents( $imageName, $source );
I am not able to open the file, when I tried to open it with sublime, it is stuck at Loading Image. When I open it with notepad, I got the following that looks like PNG image, but it is not a valid image. File starts with
�PNG
IHDR � q�I� IDATx�k�]�u�o��(��_�M��m�8:���_r�G
You can see the file here: https://gofile.io/?c=cfsYf2
Looks like the problem is making the curl request through Scrapestack, because if I point the curl to image url directly, the image is downloaded correctly, like below:
$image ="https://i.imgur.com/Cbiu8Ef.png";
Edit: I played around with scrapestack a bit more today, it doesn't seem to support image scraping. It is best if you can reach out to their customer support and find out.
#Towsif is right, you are trying to get the page, not the actual image. I put something together really quick, try and see if this works for you.
$queryString = http_build_query([
'access_key' => 'replace this with your own token',
'url' => 'https://i.imgur.com/Cbiu8Ef.png',
]);
$ch = curl_init(sprintf('%s?%s', 'http://api.scrapestack.com/scrape', $queryString));
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, false);
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false);
$image_source = curl_exec( $ch );
curl_close( $ch );
file_put_contents( 'Cbiu8Ef.png' , $image_source );
It looks like the response you get is a corrupt PNG image.
If you are using PHP with version prior of 5.1.3 you need to specify an additional option for binary data transfers, like images:
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
If the above options doesn't solve the issue you may try setting
curl_setopt($ch, CURLOPT_HTTP_CONTENT_DECODING, false);
in case the response has the Content-Type header set wrong letting curl do unwanted decoding on the raw output.
Your problem is with this url.
$image ="http://api.scrapestack.com/scrape?access_key=TOKEN-HERE&url=https://imgur.com/a/E5ehGuv";
If you go to this url
https://imgur.com/a/E5ehGuv
You will see the image page but NOT the image path. pathinfo() function does not work here and raises error.
If you right click on that image and Open image in new tab you will then see the image path, in this case that is
https://i.imgur.com/Cbiu8Ef.png
So you may try with this url
$image ="http://api.scrapestack.com/scrape?access_key=TOKEN-HERE&url=https://i.imgur.com/Cbiu8Ef.png";
One of the pages of a website i'm working on should display information about a manga such as it's cover image.
I'm trying to display an image I got by making a curl request.
<?php
if(isset($_GET['info'])) {
$postedData = $_GET["info"]; //json object containing info about manga such as author/title etc.
$info = json_decode($postedData, true);
$mangacoverid = $info['im']; //id of the cover image that i'm getting from json object
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://cdn.mangaeden.com/mangasimg/" . $mangacoverid); //link of API i'm using and adding cover id to it
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
$picture = curl_exec($ch);
curl_close($ch);
header('Content-type: image/jpeg');
echo $picture; //displays image in browser
}
?>
-Some 'mangacoverid' for testing purposes:
ff/ff94bb880357b6b811bccbbfd3356c5ec41fbb184291323f0ed6a86a.jpg
c1/c1b0173d8986681f23ecf5a69d26aa9dab4a04db4d40f99bed539198.jpg
0c/0cf6ebf78074e748ab2aeea3a0fcb9e0dd43040974c66e24fa46703f.jpg
5d/5dcfed2e033c2da62e7ac89367533ebbc344373c46a005e274a16785.png
18/18b1f0b13bccb594c6daf296c1f9b6dbd83783bb5ae63fe1716c9091.jpg
35/35bf6095212da882f5d2122fd547800ed993c58956ec39b5a2d52ad4.jpg
-While I am able to display the image in the page, the whole page background becomes black with the image in the middle of the page. (i.e. style="margin: 0px; background: #0e0e0e;>").
What I am trying to do is to insert the image in an HTML tag, so that I can place it somewhere else in the page.
I tried just putting the normal cdn link with 'mangacoverid' attached to it in an tag but the image provider doesn't allow hotlinking and it throws 403 error.
Any help really appreciated!
I tested your code and it seems to be working correctly when the cover ID is hard coded.
Could the issue be that the JSON passed via query param is not getting parsed correctly (due to URL encoding)?
Does it work correctly for you with a cover ID hard coded?
File image.php
<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, sprintf('https://cdn.mangaeden.com/mangasimg/%s', $_GET['id']));
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
$picture = curl_exec($ch);
curl_close($ch);
header('Content-type: image/jpeg');
echo $picture;
And in your script that generates the page displaying the image:
// Assuming $info holds the decoded json for the manga
echo(sprintf('<img src="image.php?id=%s>', $info['im']);
Ok, I'll post the solution in case anyone ever bumps into this.
The code is the mostly the same as original: just edited a few lines as shown below.
-I created a file in the directory called 'tempcover.jpg'.
-I got the image using the function 'imagecreatefromstring($picture)'.
-I saved the image into the file with 'imagejpeg($img,'tempcover.jpg', 100)'.
By doing this I can just refer to the file in the HTML tag and display it the way I want to.
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://cdn.mangaeden.com/mangasimg/" . $mangacoverid); //link of API i'm using and adding cover id to it
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
$picture = curl_exec($ch);
curl_close($ch);
$img = imagecreatefromstring($picture);
imagejpeg($img,'tempcover.jpg', 100);
?>
<!--HTML-->
<img src="tempcover.jpg" alt="bruh" height="400px" width="300px">
I'm using CURL to get Youtube page like this:
$url = "https://www.youtube.com/watch?v=jyPnQw_Lqds";
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$curl_scraped_page = curl_exec($ch);
curl_close($ch);
echo $curl_scraped_page;
It seems the video doesn't play, I don't know why. I found a script which solves this problem by setting the data as format json and then decodes the json as plain html like this:
$youtube = "http://www.youtube.com/oembed?url=" . $url. "&format=json";
$curl = curl_init($youtube);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$return = curl_exec($curl);
curl_close($curl);
$result = json_decode($return, true);
echo $result['html'];
Im trying to "merge" this two scripts to function as one. I put the scripts together like this:
PHPFiddle EXAMPLE, CLICK THE RUN(F9) BUTTON
As you can see the video in the top doesn't play. If you scroll down to the bottom you will see another video (which is the video echoed by the JSON) this one can actually be played.
How do I get the upper(top) video to play? I was thinking about first "finding" the "object" and then format as json etc. But Im afraid this will mess up the page.
I am currently adding the ability to a php back-end system to allow it to print directly and I am trying to get things working with Google's Cloud Print. Imagine the app as an online shopping cart and I want it to print picking notes (completed orders) without the need for someone to login. The server is remote and the destination has Cloud Ready Printers.
So far I have been successful in getting it to print using the interfaces, as long as I am simply passing HTML, plain text or a URL to a PDF. I am able to set the print to color, marginless and the print quality.
However where I have hit a problem is, the PDF which the system creates are not publicly accessible, hence I can't pass a URL to the file, I need to pass the contents of the file.
I have been trying with no success to modify one of the examples I have found on the web HERE. However I don't know the language so am struggling with it.
Another example in python HERE again I have been trying without success!
I'm using PHP and the Zend framework to work with the interface. Here is one sample I have tried, cut down to where I am trying to prepare the file to send, like I say I'm not really sure on translating from python to php, or if the python script even works, but this is what I came up with:
<?php
// Test print a job:
$b64_pathname = PDF_PATH.'ec22c3.pdf'.'.b64';
$fileType = "application/pdf";
// Open the original file and base64 encode it:
$dataHandle = fopen(PDF_PATH.'ec22c3.pdf', "rb");
$dataContent = fread($dataHandle, filesize(PDF_PATH.'ec22ed167763a15e8591a3776f3c65c3.pdf'));
fclose($dataHandle);
$b64data = $fileType.base64_encode($dataContent);
// Store the base64 encoded file:
$ourFileHandle = fopen($b64_pathname, 'w');
fwrite($ourFileHandle, $b64data);
fclose($ourFileHandle);
// Read the contents of the base64 encoded file and delete it:
$fileHandle = fopen($b64_pathname, "rb");
$fileContent = fread($fileHandle, filesize($b64_pathname));
fclose($fileHandle);
unlink($b64_pathname);
// URL encode the file contents:
$file = urlencode($fileContent);
// Add the file and send to the printer:
$client->setParameterPost('content', $file);
$client->setParameterPost('contentType', $fileType);
$client->request(Zend_Http_Client::POST);
?>
Here's a method in php using cUrl (note, I have object level variables called _auth, _username, _password & _printerId).
First, build a function to post with cUrl:
function processRequest($url, $postFields, $referer) {
$ret = "";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_USERAGENT, "");
if(!is_null($postFields)) {
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS,
$postFields);
// http_build_query() will properly escape the fields and
// build a query string.
}
if(strlen($this->_auth) > 0) {
$headers = array(
"Authorization: GoogleLogin auth=". $this->_auth,
//"GData-Version: 3.0",
"X-CloudPrint-Proxy", "yourappname"
);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
}
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_REFERER, $referer);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
$ret = curl_exec ($ch);
curl_close ($ch);
return $ret;
}
Then, a function to authorize against Google:
public function authorize() {
$url = "https://www.google.com/accounts/ClientLogin";
$post = array("accountType" => "HOSTED_OR_GOOGLE",
"Email" => $this->_username,
"Passwd" => $this->_password,
"service" => "cloudprint",
"source" => "yourappname");
$resp = $this->processRequest($url, $post, "");
preg_match("/Auth=([a-z0-9_\-]+)/i", $resp, $matches);
$this->_auth = $matches[1];
}
Finally, build a function to submit to the cloud printer:
function printDocument($title, $docBytes)
{
$url = "http://www.google.com/cloudprint/submit?printerid=". $this->_printerId."&output=json";
$post = array(
"printerid" => $this->_printerId,
"capabilities" => "",
"contentType" => "dataUrl",
"title" => $title,
"content" => 'data:application/pdf;base64,'. base64_encode($docBytes)
);
$ret = $this->processRequest($url, $post, "");
echo $ret;
}
In use, call authorize() to get the authentication token. Then just read your file (from wherever) into a variable and pass it to printDocument with the title.
In order to send base64 encoded content you need to send another parameter in submit request:
$client->setParameterPost('contentTransferEncoding', 'base64');