如何使用 PHP cURL 發布 JSON 數據？

Question

這是我的代碼，

$url = 'url_to_post';
$data = array(
    "first_name" => "First name",
    "last_name" => "last name",
    "email"=>"email@gmail.com",
    "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);

在其他頁面，我正在檢索帖子數據。

    print_r ($_POST);

Output 是

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，即使在我自己的服務器上，我也沒有得到正確的數據，它是空數組。 我想使用 json 實現 REST ，如http://docs.Z329A01FDDB5A552#9C85.com/apicustomer#9C855

Answer 1

您發布的 json 不正確——但即使它是正確的，您也無法使用print_r($_POST)進行測試（在此處閱讀原因）。 相反，在您的第二頁上，您可以使用file_get_contents("php://input")獲取傳入請求，其中將包含 POSTed json 。 要以更易讀的格式查看接收到的數據，請嘗試以下操作：

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

在您的代碼中，您指示的是Content-Type:application/json ，但您並未對所有 POST 數據進行 json 編碼——只有“客戶”POST 字段的值。 相反，請執行以下操作：

$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>";

旁注：您可能會受益於使用第三方庫而不是自己直接與 Shopify API 接口。

Answer 2

$url = 'url_to_post';
$data = array("first_name" => "First name","last_name" => "last name","email"=>"email@gmail.com","addresses" => array ("address1" => "some address" ,"city" => "city","country" => "CA", "first_name" =>  "Mother","last_name" =>  "Lastnameson","phone" => "555-1212", "province" => "ON", "zip" => "123 ABC" ) );

$postdata = json_encode($data);

$ch = curl_init($url); 
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postdata);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
$result = curl_exec($ch);
curl_close($ch);
print_r ($result);

這段代碼對我有用。 你可以試試...

Answer 3

代替

curl_setopt($ch, CURLOPT_POSTFIELDS, array("customer"=>$data_string));

和：

$data_string = json_encode(array("customer"=>$data));
//Send blindly the json-encoded string.
//The server, IMO, expects the body of the HTTP request to be in JSON
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);

---

我不明白你所說的“其他頁面”是什么意思，我希望它是位於：'url_to_post' 的頁面。 如果該頁面是用 PHP 編寫的，那么您剛剛在上面發布的 JSON 將按以下方式讀取：

$jsonStr = file_get_contents("php://input"); //read the HTTP body.
$json = json_decode($jsonStr);

Answer 4

請試試這個代碼：-

$url = 'url_to_post';

$data = array("first_name" => "First name","last_name" => "last name","email"=>"email@gmail.com","addresses" => array ("address1" => "some address" ,"city" => "city","country" => "CA", "first_name" =>  "Mother","last_name" =>  "Lastnameson","phone" => "555-1212", "province" => "ON", "zip" => "123 ABC" ) );

$data_string = json_encode(array("customer" =>$data));

$ch = curl_init($url);

curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);

curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$result = curl_exec($ch);

curl_close($ch);

echo "$result";

Answer 5

第一的，

1. 始終使用 CURLOPT_CAPATH 選項定義證書，

2. 決定您發布的數據將如何傳輸。

1 證書

默認情況下：

• CURLOPT_SSL_VERIFYHOST == 2 “檢查通用名稱的存在並驗證它是否與提供的主機名匹配”和

• CURLOPT_VERIFYPEER == true “驗證對等方的證書”。

所以，你所要做的就是：

const CAINFO = SERVER_ROOT . '/registry/cacert.pem';
...
\curl_setopt($ch, CURLOPT_CAINFO, self::CAINFO);

取自工作類，其中SERVER_ROOT是在應用程序引導期間定義的常量，如自定義類加載器、另一個類等。

忘記諸如\\curl_setopt($handler, CURLOPT_SSL_VERIFYHOST, 0); 或\\curl_setopt($handler, CURLOPT_SSL_VERIFYPEER, 0); .

如本問題所示，在那里找到cacert.pem 。

2種POST模式

發布數據時實際上有兩種模式：

• 數據傳輸時Content-Type標頭設置為multipart/form-data或，

• 數據是帶有application/x-www-form-urlencoded編碼的 urlencoded 字符串。

在第一種情況下，您傳遞一個數組，而在第二種情況下，您傳遞一個urlencoded string 。

multipart/form-data例如：

$fields = array('a' => 'sth', 'b' => 'else');
$ch = \curl_init();
\curl_setopt($ch, CURLOPT_POST, 1);
\curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);

application/x-www-form-urlencoded例如：

$fields = array('a' => 'sth', 'b' => 'else');
$ch = \curl_init();
\curl_setopt($ch, CURLOPT_POST, 1);
\curl_setopt($ch, CURLOPT_POSTFIELDS, \http_build_query($fields));

http_build_query ：

在你的命令行測試它

user@group:$ php -a
php > $fields = array('a' => 'sth', 'b' => 'else');
php > echo \http_build_query($fields);
a=sth&b=else

POST 請求的另一端將定義適當的連接模式。

Answer 6

像這樣嘗試：

$url = 'url_to_post';
// this is only part of the data you need to sen
$customer_data = array("first_name" => "First name","last_name" => "last name","email"=>"email@gmail.com","addresses" => array ("address1" => "some address" ,"city" => "city","country" => "CA", "first_name" =>  "Mother","last_name" =>  "Lastnameson","phone" => "555-1212", "province" => "ON", "zip" => "123 ABC" ) );
// As per your API, the customer data should be structured this way
$data = array("customer" => $customer_data);
// And then encoded as a json string
$data_string = json_encode($data);
$ch=curl_init($url);

curl_setopt_array($ch, array(
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => $data_string,
    CURLOPT_HEADER => true,
    CURLOPT_HTTPHEADER => array('Content-Type:application/json', 'Content-Length: ' . strlen($data_string)))
));

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

您忘記的關鍵是對您的數據進行 json_encode。 但是您也可能會發現使用 curl_setopt_array 通過傳遞一個數組來一次設置所有 curl 選項很方便。

Answer 7

試試這個例子。

<?php 
 $url = 'http://localhost/test/page2.php';
    $data = array("first_name" => "First name","last_name" => "last name","email"=>"email@gmail.com","addresses" => array ("address1" => "some address" ,"city" => "city","country" => "CA", "first_name" =>  "Mother","last_name" =>  "Lastnameson","phone" => "555-1212", "province" => "ON", "zip" => "123 ABC" ) );
    $ch=curl_init($url);
    $data_string = urlencode(json_encode($data));
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_POSTFIELDS, array("customer"=>$data_string));


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

    echo $result;
?>

你的 page2.php 代碼

<?php
$datastring = $_POST['customer'];
$data = json_decode( urldecode( $datastring));

?>