Use Watson Visual Recognition Sample

use_watson_visual_recognition.php

<?php
$api_url = env('WATSON_RECOGNITION_API_URL');
$api_key = env('WATSON_RECOGNITION_API_KEY');
$api_mode = "v3/classify";
$curl = new Curl();
$curl_url = $api_url . $api_mode;
$image_path = 'image_path';
$curl->get($curl_url, array(
    'url' => $image_path,
    'classifier_ids' => 'default',
    'api_key' => $api_key,
    'owners' => 'me',
    'threshold' => 0.25,
    'version' => '2016-05-20'
));
var_dump(json_decode($curl->response));