我用的FLEA，可能大家都没听说过，但原理是一样的，大家适当参考下吧。

  1. token和client_token我是配置在一个config文件里的

    array( 'token' => ' aaaa', 'param' =>array( 'url' => 'http://', // 短信接口地址 'method'=>'sms.send', // 接口名称 自己定义的 'client_token' => 'bbbbbbb', ) ), ); ?>

2.api接口

<?php
        FLEA::loadClass('TMIS_Controller');
        class Controller_Org_Sms extends TMIS_Controller {
                    var $_json;//从json文件载入后的对象
                    var $_arr_method=array();//所有的方法名列表
                    var $_method;//当前的方法
                    var $_params;//当前参数
                    var $_success;//是否成功
                    var $_msg;//失败的错误信息，或者成功后的结果json
                    // var $_modelExample;

                    function __construct() {
                            // $this->_modelExample = & FLEA::getSingleton('Model_Jichu_Message'); 这个是记录发送短信的信息内容，发送人，时间等的表，如果不需要存数据库，可以不用
                            $this->_url = "发送短信的url";
                    }



        /**
             * 生成签名的算法，这个算法应该每个短信接口的网站都有自己的算法规则，我这里是互亿的签名算法
        */
                  private function getSign($params ,$token_client = ''){
   
                        //签名步骤一：按字典序排序参数
                         ksort($params , SORT_STRING);

                        $string = http_build_query($params);

                        //签名步骤二：在string后加入Token
                        $string = $string . "&client_token=".$token_client;
                        return strtoupper(md5($string));
                }

//发送短信的接口
                public function sendSms($params = array()){
                        $data = array(
                                'to'           =>$params['to'],
                                'content'      =>$params['content'],
                                'curtime'      =>time()-1,
                            );
                        return $this->callApi($data);
                }

            function callApi($post) {
                        require "Config/sms_config.php";
                        $arrSMS = $sms_config['SMS'];
                        $param = $arrSMS['param'];

                        $url = $param['url'];
                        $token = $arrSMS['token'];

                        $post['client_token'] = $arrSMS['param']['client_token'];
                        $post['method'] = $arrSMS['param']['method'];

                        $post['sign'] = $this->getSign($post ,$token);

                        //curl post 请求
                        $objRequest = FLEA::getSingleton('Api_Httprequest'); //调用第三步Api_Httprequest类
                        $result = $objRequest->post($post,$url);

                        $result = json_decode($result ,1);
                        return $result;
}

}
?>

3.curl 的 post请求和get请求封装成一个类

    <?php
        /*********************************************************************\
         *  Remark :用curl模拟http请求,用来访问api,一般在api的调用方被包含
        \*********************************************************************/
        class Api_Httprequest{

        //post方式提交数据,注意post_data不能有嵌套的数组
        public function post($post_data,$url) {
                        $ch = curl_init();
                        curl_setopt($ch, CURLOPT_POST, 1);
                        curl_setopt($ch, CURLOPT_HEADER, 0);
                        curl_setopt($ch, CURLOPT_URL,$url);
                        //设置cURL 参数，要求结果保存到字符串中还是输出到屏幕上, 0为直接输出屏幕，非0则不输出
                        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
                        //为了支持cookie
                        //curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt');
                        /*
                        // POST数据
                        curl_setopt($ch, CURLOPT_POST, 1);
                        // 把post的变量加上
                        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
                        */
                        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post_data));
                        //curl_excc会输出内容，而$result只是状态标记
                        $result = curl_exec($ch);
                        $errorCode = curl_errno($ch);
                        //释放curl句柄
                        curl_close($ch);

                        if(0 !== $errorCode) {
                                $this->_success = false;
                                $this->writeLog($url ,$post_data);
                        return false;
                        }

            $this->_success = true;
            $this->_msg = $result;
            $this->writeLog($url ,$post_data);
            // $result = ob_get_contents();
            // ob_end_clean();
            return $result;
    }

    function get($query,$url) {
            $info = parse_url($url);#print_r($info);exit;
            $fp = fsockopen($info["host"], 80, $errno, $errstr, 3);
            $head = "GET ".$info['path']."?".$info["query"]." HTTP/1.0\r\n";
            $head .= "Host: ".$info['host']."\r\n";
            $head .= "\r\n";
            $write = fputs($fp, $head);
            while (!feof($fp)) {
                    $line = fread($fp,4096);
                    echo $line;
            }
}

}
?>

4.前台传值代码












获取验证码

		        </div>
      
                       <button type="submit" id="submit" tabindex="4">登 录</button>
<script type="text/javascript">
    //点击获取验证码按钮
        $('.action-get-verifycode').click(function(e){
		e.preventDefault();
        var el = document.getElementById('username') ;
        var elp = document.getElementById('password') ;
        if(this.hasClass('disabled')) return false;
        sendVerify(this,'username' + '=' + el.value + '&password' + '=' + elp.value);
});

	function sendVerify(el,data) {
    var url = el.href;
    var textCont = el.getElement('span span');
	el.addClass('disabled');
 	// $(el).find('span').attr('disabled',true);
 	// $(el).attr('disabled',true);
    textCont.innerHTML = el.innerText + '(<i>0</i> )';
    var ttt = textCont.getElement('i');
    var cd = new countdown(textCont.getElement('i'), {
        start: 60,
        secondOnly: true,
        callback: function(e) {
            el.removeClass('disabled');
            textCont.innerHTML = '重发验证码';
        }
    });
    Query.send(url, el, data, function(rs) {
        if(rs.success) {
            cd.stop();
            el.removeClass('disabled');
            textCont.innerHTML = '重发验证码';
        }else{
            cd.stop();
        	el.removeClass('disabled');
            textCont.innerHTML = '获取验证码';
        }
    });
}

5.验证用户名，密码，短信发送次数等，然后 调用方法：

//随机取6位字符数
public function randomkeys($length){
$key = '';
$pattern = '1234567890'; //字符池
for($i=0;$i<$length;$i++){
$key .= $pattern{mt_rand(0,9)}; //生成php随机数
}
return $key;
}

//设置session保存时间

public function start_session($expire = 0) {
if ($expire == 0) {
$expire = ini_get('session.gc_maxlifetime');
} else{
ini_set('session.gc_maxlifetime', $expire);
}
session_start();
setcookie(session_name(), session_id(), time() + $expire, "/");
}

从前台传入用户名和密码，判断是否正确
function actionSetVcode(){

	//判断是否填写用户名
	if($_POST['username']){
		$p['username']=$_POST['username'];
	}else{
		$msg = "无效用户名!";
		echo json_encode(array('success'=>false,'msg'=>$msg));
		exit;
	}

	$m=FLEA::getSingleton('Model_Acm_User');//加载用户的数据库

	//判断用户名和密码是否一致
	$str = " SELECT passwd from acm_userdb where userName='{$p['username']}'";
	$passwd = $m->findBySql($str);

	if($passwd[0]['passwd']!=$_POST['password']){
		$msg = "用户名和密码不一致!";
		echo json_encode(array('success'=>false,'msg'=>$msg));
		exit;
	}

	//判断用户是否绑定手机号
	$sql = "SELECT phone from acm_userdb where userName='{$p['username']}'";
	$rs = $m->findBySql($sql);

	if(!$rs[0]['phone'] && $p['username']!='admin'){
		$msg = "对应用户可能没绑定手机号!";
		echo json_encode(array('success'=>false,'msg'=>$msg));
		exit;
	}

	$_SESSION['count'] = isset($_SESSION['count'])?$_SESSION['count']:0;
	if($_SESSION['count']>=3){
		$msg = "今日发送次数已用完";
		echo json_encode(array('success'=>false,'msg'=>$msg));
		exit;
	}

    if( time() - $_SESSION['lastmodify'] < 120 ){
                $msg = '2分钟发送一次,还没到两分钟则不进行发送';
                echo json_encode(array('success'=>false,'msg'=>$msg));
	    exit;
        }




    $vcode = $this->randomkeys(6);//取得随机6位数验证码

    $mobile = $rs[0]['phone'];
    $time_sess = 3600 * 3;//设置验证码有效时间
	$this->start_session($time_sess);

    $_SESSION['VcodeforLogin'] = $vcode;
    $_SESSION['mobileforLogin'] = $mobile;
    $_SESSION['username'] = $_POST['username'];
    $_SESSION['password'] = $_POST['password'];
    $_SESSION['count'] ++;
    $_SESSION['lastmodify'] = time();

    $content = "您的验证码是：".$vcode."。请不要把验证码泄露给其他人。";

$Sms = FLEA::getSingleton('Controller_Org_Sms');//加载api控制器接口
$result = $Sms->sendSms(array('to'=>$mobile ,'content'=>$content));//调用sendSms方法，$mobile是发送给谁，$content是发送的内容，

    $result =  json_decode($result,1);

    $arr = array('success'=>true);
	echo json_encode($arr);exit;//
}

6.点击登录，传用户名，密码，填写的验证码和发送的验证码是否一致；
//确定按钮点击后效果
$('#form_login').submit(function(){

		var verify = $('#verify').val();
		var username = $('#username').val();
		var password = $('#password').val()；


			//填写验证码
		var url = "?controller=Login&action=loginIndex";
		var param = {
				'username':username,
				'password':password,
				'verify':verify
		};
		$('#submit').attr('disabled',true);
		$.ajax({
	            type: "POST",
	            url: url,
	            data: param,
	            dataType: 'json',
	            async: false,//同步操作
	            success:function(json){
	            	console.log(json);
		            if(json.success==false){
		                showError(json.msg);
		                setTimeout(function(){
							$('#submit').attr('disabled',false);
							$('#submit').text('登 录');

						}, 500);
		        		return false;

		            }else{
		                showMsg('登陆成功');
		            }
	           },

	        });
	        var urls = "?controller=Main&action=Index";
		setTimeout(function(){window.location.href=urls;}, 500);

	        return false;

		$('#submit').attr('disabled',true);
		$('#submit').text('登录中…');
		$(this).ajaxSubmit({
			'data':{'is_ajax':true},
			success:function(t,b,f){
				var json = eval("("+t+")");
				if(json.success==true){
					showMsg('登陆成功');
					setTimeout(function(){window.location.href=json.href;}, 500);
				}else{
					showError(json.msg);
					setTimeout(function(){
						$('#submit').attr('disabled',false);
						$('#submit').text('登 录');
					}, 500);
				}
			}
		});
		
		return false;
	});