Bing Image search API v5.0 example for PHP - php

Question

I'm trying, without success, to get some results using Bing's Image search API without HTTP/Request2.php component (as used in the official examples).
I understand that the only two required parameters to make a very primitive call are q which is the query string and the subscription key. The key must be sent using headers. After looking around I found this very simple example to send headers with PHP:
$sURL = "https://api.cognitive.microsoft.com/bing/v5.0/images/search?q=cats";
$aHTTP = array(
'Ocp-Apim-Subscription-Key' => 'xxxxxxx',
);
$context = stream_context_create($aHTTP);
$contents = file_get_contents($sURL, false, $context);
echo $contents;
But it does not output anything. Would you kindly help me with a very basic example of use of Bing's API?

Answer 1

SOLVED
Thanks to Vadim's hint I changed the way headers are sent and now output is a Json encoded result. (Remember to add your API subscription key.)
$sURL = "https://api.cognitive.microsoft.com/bing/v5.0/images/search?q=cats";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $sURL);
curl_setopt($ch, CURLOPT_TIMEOUT, '1');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Content-Type: multipart/form-data',
'Ocp-Apim-Subscription-Key: xxxxx'
));
$content = curl_exec($ch);
echo $content;
Just another tip. The syntax of query filters and other parameters change form version to version. For example the following work correctly in version 5.0:
To search only for JPEG images of cats and get 30 results use:
q=cats&encodingFormat='jpeg'&count=30
To search only for 'portrait' aspect images with size between 200x200 and 500x500 use:
q=cats&aspect=Tall&size=Medium

Answer 2

Try using cURL
$sURL = "https://api.cognitive.microsoft.com/bing/v5.0/images/search?q=cats";
$key = "xxxxxxx";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $sURL);
curl_setopt($ch, CURLOPT_TIMEOUT, '1');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 'ocp-apim-subscription-key:$key');
$content = curl_exec($ch);
echo $content;

Answer 3

Here is my working code..
Replace ******** with your bing subscription key.
$sURL = "https://api.cognitive.microsoft.com/bing/v5.0/images/search?q=microsoft-surface&count=6&mkt=en-US";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $sURL);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Content-Type: multipart/form-data',
'Ocp-Apim-Subscription-Key: *******************'
));
$contents = curl_exec($ch);
$myContents = json_decode($contents);
if(count($myContents->value) > 0) {
foreach ($myContents->value as $imageContent) {
echo '<pre/>';
print_r($imageContent);
}
}