PHP基于CURL发送JSON格式字符串的方法示例

/** post 发送JSON 格式数据* @param $url string URL* @param $data_string string 请求的具体内容* @return array*   code 状态码*   result 返回结果*/function post_json_data($url, $data_string) {    $ch = curl_init();    curl_setopt($ch, CURLOPT_POST, 1);    curl_setopt($ch, CURLOPT_URL, $url);    curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);    curl_setopt($ch, CURLOPT_HTTPHEADER, array(        'Content-Type: application/json; charset=utf-8',        'Content-Length: ' . strlen($data_string))    );    ob_start();    curl_exec($ch);    $return_content = ob_get_contents();    ob_end_clean();    $return_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);    return array('code'=>$return_code, 'result'=>$return_content);}$arr = array('a'=>'555','b'=>56454564);dump(post_json_data('http://192.168.211.1/html/dump.php',json_encode($arr)));

$content = file_get_contents('php://input');