Php 使用CURL传递JSON数据

我正在将一个CURL post用于现有的API。API返回错误

内容必须是JSON或纯文本。I
json\u编码
数据
并将编码后的数据发布到API

在API中，它说
内容类型应该是application/x-www-form-urlencoded'

但是，它仍然返回错误
内容必须是JSON或纯文本。在以JSON格式提交数据后，下面的代码可能会出现什么问题

这是API文档中的一个示例请求正文

"item" : "Store",
"content" : {
        "channel":"false",
        "hop": "false",
        "msg": "Order successfully placed."
}

控制器

 public function postUrl()
    {
        $url = "https://api.com/"; 
        $data = array("item" => "Nike Shoes","content" => array ("channel" => "false" ,"hop" => "false","msg" => "Item Sold"));
        $postdata = json_encode($data);
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/x-www-form-urlencoded'));
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_POSTFIELDS, $postdata);
        $result = curl_exec($ch);
        curl_close($ch);
        Log::info($postdata);    
    }

这可能是因为布尔值被指定为字符串

public function postUrl()
{
    $url = 'https://api.com/';
    $data = [
        'item' => 'Nike Shoes',
        'content' => [
            'channel' => false,
            'hop'     => false,
            'msg'     => 'Item Sold'
        ]
    ];
    $postData = json_encode($data);
    $ch = curl_init();

    curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
    curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
    $result = curl_exec($ch);
    curl_close($ch);
    Log::info($postData);
}

也试试这个

public function postUrl()
{
    $url = 'https://api.com/';
    $data = [
        'item' => 'Nike Shoes',
        'content' => [
            'channel' => 'false',
            'hop'     => 'false',
            'msg'     => 'Item Sold'
        ]
    ];
    $postData = json_encode($data);
    $ch = curl_init();

    curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: text/json']);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
    curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
    $result = curl_exec($ch);
    curl_close($ch);
    Log::info($postData);
}