如何將http請求2的梨碼轉換爲curl php

Question

我想用curl代替http請求2在PHP中的梨模塊查詢Microsoft Project Oxford api。他們有一個現成的庫，可以方便地調用他們的API，但它使用了一個名爲http request2的pear模塊。我真的不知道如何在服務器上安裝pear模塊，所以我想只是重寫庫的一些部分來使用curl。下面是我特別希望修改其代碼的一部分：

// This sample uses the HTTP_Request2 package. (for more information: http://pear.php.net/package/HTTP_Request2) 

require_once 'HTTP/Request2.php'; 
$headers = array(
    'Content-Type' => 'application/json', 
); 

$query_params = array(
    // Specify your subscription key 
    'subscription-key' => '', 
    // Specify values for optional parameters, as needed 
    'visualFeatures' => 'All', 
); 

$request = new Http_Request2('http://api.projectoxford.ai/vision/v1/ocr?language=unk&detectOrientation =true'); 
$request->setMethod(HTTP_Request2::METHOD_POST); 
// Basic Authorization Sample 
// $request-setAuth('{username}', '{password}'); 
$request->setHeader($headers); 

$url = $request->getUrl(); 
$url->setQueryVariables($query_params); 
$request->setBody("{'Url':'https://oxfordportal.blob.core.windows.net/vision/OpticalCharacterRecognition/1.jpg'}"); 

    echo '<pre>'; 
     print_r($request); 
    echo '</pre>'; 

try 
{ 
    $response = $request->send();  
     echo '<pre>'; 
    print_r(var_dump(json_decode($response->getBody(), true))); 
     echo '</pre>'; 
} 
catch (HttpException $ex) 
{ 
    echo $ex; 
} 

而這裏的代碼，我到目前爲止有：

$headers = array(
    'Content-Type' => 'application/json', 
     'subscription-key' => ''   
); 

/* 
$query_params = array(  
     array('Url'=>'https://oxfordportal.blob.core.windows.net/vision/OpticalCharacterRecognition/1.jpg')   
); 
*/ 

$query_params = '{ "Url": "https://oxfordportal.blob.core.windows.net/vision/OpticalCharacterRecognition/1.jpg"}';  

$ch = curl_init(); 
curl_setopt($ch, CURLOPT_URL, 'http://api.projectoxford.ai/vision/v1/ocr?language=en&detectOrientation =true'); 
curl_setopt($ch, CURLOPT_POST, true); 
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); 
curl_setopt($ch, CURLOPT_POSTFIELDS, $query_params); //Post Fields 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  

$ret_arr = curl_exec ($ch); 

echo curl_error($ch); 

curl_close ($ch); 

但它給我的HTTP格式錯誤請求錯誤400。 ..我的捲髮代碼有什麼問題？請幫助......

Answer 1

嘗試這樣

<?php 

$headers = array(
    'Content-Type' => 'application/json', 
     'subscription-key' => ''   
); 

$query_params = '{ "Url": "https://oxfordportal.blob.core.windows.net/vision/OpticalCharacterRecognition/1.jpg"}'; 

$ch = curl_init(); 
curl_setopt($ch, CURLOPT_URL, 'http://api.projectoxford.ai/vision/v1/ocr?language=en&detectOrientation=true'); 
curl_setopt($ch, CURLOPT_POST, true); 
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); 
curl_setopt($ch, CURLOPT_POSTFIELDS, $query_params); //Post Fields 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  

$ret_arr = curl_exec ($ch); 

var_dump($ret_arr); 

echo curl_error($ch); 

curl_close ($ch); 

這會返回一個"statusCode": 401, "message": "Access denied due to missing subscription key. Make sure to include subscription key when making requests to an API."消息給我。所以400錯誤至少解決了。

您遇到的問題是由於您的CURLOPT_URL值中存在空格。

Answer 2

這工作：

$ch = curl_init(); 

curl_setopt($ch, CURLOPT_POST, true); 
curl_setopt($ch, CURLOPT_URL, 'http://api.projectoxford.ai/vision/v1/ocr?language=unk&detectOrientation=true'); 
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    'Content-Type: application/json', 
    'Host: api.projectoxford.ai', 
    'Ocp-Apim-Subscription-Key: YOUR_API_KEY_HERE', 
)); 
curl_setopt($ch, CURLOPT_POSTFIELDS, '{"Url": "https://oxfordportal.blob.core.windows.net/vision/OpticalCharacterRecognition/1.jpg"}'); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
$response = curl_exec ($ch); 

echo "<h3>Request</h3>\r\n"; 
debug(curl_getinfo($ch)); 

echo "<h3>Response</h3>\r\n"; 
debug($response); 
echo curl_error($ch); 
curl_close ($ch); 

function debug(){ 
    echo'<pre>'; 
    foreach(func_get_args()as $arg){ 
     ob_start(); 
     var_dump($arg); 
     echo htmlentities(ob_get_clean())."</pre><hr>\r\n"; 
    } 
}