如何使用PHP curl发布JSON数据？

Question

$url = 'url_to_post';
$data = array(
    "first_name" => "First name",
    "last_name" => "last name",
    "email"=>"[e-mail]",
    "addresses" => array (
        "address1" => "some address",
        "city" => "city",
        "country" => "CA",
        "first_name" =>  "Mother",
        "last_name" =>  "Lastnameson",
        "phone" => "555-1212",
        "province" => "ON",
        "zip" => "123 ABC"
    )
);
$data_string = json_encode($data);
$ch=curl_init($url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, array("customer"=>$data_string));
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER,
    array(
        'Content-Type:application/json',
        'Content-Length: ' . strlen($data_string)
    )
);

$result = curl_exec($ch);
curl_close($ch);

    print_r ($_POST);

输出为

HTTP/1.1 200 OK
Date: Mon, 18 Jun 2012 07:58:11 GMT
Server: Apache
X-Powered-By: PHP/5.3.6
Vary: Accept-Encoding
Connection: close
Content-Type: text/html

Array ( ) 

所以，即使在我自己的服务器上，我也没有得到正确的数据，它是空数组。我想通过http://docs.shopify.com/api/customer#create使用json实现REST

Answer 1

您发布的json不正确--但是即使它是正确的，您也不能使用print_r($_post)进行测试（请在此处阅读为什么）。相反，在第二个页面上，可以使用file_get_contents（“php://input”）获取传入的请求，该请求将包含已发布的JSON。若要以更易读的格式查看接收到的数据，请尝试以下操作：

echo '<pre>'.print_r(json_decode(file_get_contents("php://input")),1).'</pre>';

在您的代码中，您指示content-type:application/json，但是您并没有JSON编码所有的POST数据--只编码“Customer”POST字段的值。相反，请执行如下操作：

$ch = curl_init( $url );
# Setup request to send json via POST.
$payload = json_encode( array( "customer"=> $data ) );
curl_setopt( $ch, CURLOPT_POSTFIELDS, $payload );
curl_setopt( $ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));
# Return response instead of printing.
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
# Send request.
$result = curl_exec($ch);
curl_close($ch);
# Print response.
echo "<pre>$result</pre>";

SideNote：您可能会受益于使用第三方库，而不是自己直接与Shopify API接口。