无法为REST api连接初始化php代码...获取警告：curl_setopt（）期望参数2为long，给定[close]字符串

Question

I am unable to initialize some PHP code for a REST API connection to a LMS:

function post_curl($url, $post_fields)
{
    $access_key = 'xxx';

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_SAFE_UPLOAD, false);               
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($post_fields));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT ,3);
    curl_setopt($ch, CURLOPT_TIMEOUT, 20);
    curl_setopt($ch, CURLOPT_HEADER, false);
    curl_setopt($ch, CURLOPT_HTTPAUTH , CURLAUTH_BASIC);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array( 'Host: api.xxx.com',
                                                'Content-type: application/json',
                                                'Authorization: Bearer ' . $access_key));
    curl_setopt($ch, CURLOPT_TIMEOUT, 20);
    $response = curl_exec($ch);
    curl_close ($ch);
    return json_decode($response);
}

Answer 1

I suspect your issue is that CURLOPT_SAFE_UPLOAD has been removed in PHP 7, causing the constant to be treated as a string, which is invalid.