視覺識別的IBM沃森API中的收藏品使用curl

Question

我使用IBM沃森視覺識別API時，我的imahe添加到集合，但 我收到follwoing錯誤所有的時間添加圖像問題

string(59) "{ "error": "Missing multipart/form-data", "code": 400 }" bool(true) 

這裏是我的代碼

<?php 
if (isset($_FILES['uploadedfile']) && $_POST!="") { 
$targetPath = 'uploads/'.basename($_FILES['uploadedfile']['name']); 
$url = 'https://gateway-a.watsonplatform.net/visual-recognition/api/v3/collections/searchItems_c5c677/images?api_key=655e4118jgfd8e967ce58ee0b67behjfh3ebfad22e38a34e&version=2016-05-20'; 
$fileData = $_FILES['uploadedfile']['name']; 
$post_data = array(
     'image_file' => $fileData 
); 
$ch = curl_init(); 
curl_setopt($ch, CURLOPT_URL, $url); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt($ch, CURLOPT_POST, 1); 
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data); 
$headers = array(); 
$headers[] = "Content-Type: multipart/form-data"; 
$headers[] = "Accept: application/json"; 
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); 
$result = curl_exec($ch); 
if (curl_errno($ch)) { 
    echo 'Error:' . curl_error($ch);die; 
} 
    var_dump($result, true);die; 
} 
?> 
<form enctype="multipart/form-data" method='post' action="index.php"> 
    <input name="uploadedfile" type="file" value="choose"> 
    <input type="submit" value="Upload"> 
</form> 

Answer 1

我有檢查代碼，並做出一些改變，現在它的工作。

if (isset($_FILES['uploadedfile']) && $_POST != "") { 
    $targetPath = 'uploads/' . basename($_FILES['uploadedfile']['name']); 
    $url = 'https://gateway-a.watsonplatform.net/visual-recognition/api/v3/classify?api_key={your_key}&version=2016-05-20'; 
    $post_data = array(
     'file' => 
     '@' . $_FILES['uploadedfile']['tmp_name'] 
     . ';filename=' . $_FILES['uploadedfile']['name'] 
     . ';type=' . $_FILES['uploadedfile']['type'] 
    ); 

    $ch = curl_init(); 
    curl_setopt($ch, CURLOPT_URL, $url); 
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
    curl_setopt($ch, CURLOPT_POST, 1); 
    curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data); 
    $headers = array(); 
    $headers[] = "Content-Type: multipart/form-data"; 
    $headers[] = "Accept: application/json"; 
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); 
    $result = curl_exec($ch); 
    if (curl_errno($ch)) { 
     echo 'Error:' . curl_error($ch); 
     die; 
    } 
    var_dump($result, true); 
    die; 
}