微信支付接口

发起支付请求：

<?php class wx_pay{private $appId= 'testId';private $appSecret= 'testSecret';private $paySignKey= 'testSign';private $partnerId= 'testPartner';private $partnetKey= 'testKey';private $nonceStr= '';private $timeStamp= '';private $package= '';//  重新加密private $signType= 'SHA1';private $paySign= '';//  重新加密private $attach= '0d10b6fc91971c0a76c522ee1547ca66';// md5(' your Attach')private $bank_type= 'WX';private $fee_type= '1';// 现金支付币种取值1（人民币）,默认值是1，暂只支持1private $goods_tag= '';// 商品标记，优惠券时可能用到。private $input_charset= 'UTF-8';private $notify_url= 'your notify url';private $partner= 'your partner ';private $spbill_create_ip= '';public $body= '';public $total_fee= '';public $out_trade_no= '';public $transport_fee= '';public $product_fee = '';// 非必须 商品费用单位为分如果有值必须保证transport_fee + product_fee=total_feefunction __construct(){$this->nonceStr= $this->getNonceStr();$this->timeStamp= (string) time();$this->spbill_create_ip= $_SERVER['REMOTE_ADDR'];}public function makeParams(){$params = array();/* package 加密过程 开始*/// 1,按字典排序参数$packAge_step1 = "attach={$this->attach}&bank_type={$this->bank_type}&body={$this->body}&fee_type={$this->fee_type}&input_charset={$this->input_charset}¬ify_url={$this->notify_url}&out_trade_no={$this->out_trade_no}&partner={$this->partner}&spbill_create_ip={$this->spbill_create_ip}&total_fee={$this->total_fee}";// 2,md5加密$packAge_step1，连接key=$partnetKey,再把连接好的字符串转化成大写$sign=  strtoupper(md5($packAge_step1.'&key='.$this->partnetKey));// 3,再对string1中的每一个键值对中的value进行$this->encodeURIComponent编码后得到$packAge_step2 = 'attach='.$this->encodeURIComponent($this->attach).'&bank_type='.$this->encodeURIComponent($this->bank_type).'&body='.$this->encodeURIComponent($this->body).'&fee_type='.$this->encodeURIComponent($this->fee_type).'&input_charset='.$this->encodeURIComponent($this->input_charset).'¬ify_url='.urlencode($this->notify_url).'&out_trade_no='.urlencode($this->out_trade_no).'&partner='.urlencode($this->partner).'&spbill_create_ip='.urlencode($this->spbill_create_ip).'&total_fee='.urlencode($this->total_fee);// 4,拼接上sign后得到最终package结果：$packAge_step3 = $packAge_step2.'&sign='.$sign;$package = $packAge_step3;/* package 加密过程 结束*//* paySign 加密过程 开始*/// 1,按字典排序参数$paySign_step1 = "appid={$this->appId}&appkey={$this->paySignKey}&noncestr={$this->nonceStr}&package={$package}×tamp={$this->timeStamp}";// 2,用sha1方式加密$paySign = sha1($paySign_step1);/* paySign 加密过程 结束*//************************************************************************************************************************************************ * return  *************************************************************************************************************************************************/$params['appId']= $this->appId;$params['timeStamp']= $this->timeStamp;$params['nonceStr']= $this->nonceStr;$params['package']= $package;$params['signType']= $this->signType;$params['paySign']= $paySign;return $params;/*************************************************************************************************************************************************/}public function getNonceStr(){$chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';$maxPos = strlen($chars)-1;$noceStr = "";for ($i = 0; $i < 32; $i++){$noceStr .= $chars[rand($i, $maxPos)];}return $noceStr;}public function priceFormat($price=0){return floor($price*100);}//模拟js中的encodeURIComponent方法public function encodeURIComponent($str) {$revert = array('%21'=>'!', '%2A'=>'*', '%27'=>"'", '%28'=>'(', '%29'=>')');return strtr(rawurlencode($str), $revert);}}?>

支付成功回调函数

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');class WxPay extends M_Controller {public function __construct(){parent::__construct();}public function notify(){$this->checkParams();$out_trade_no= $this->input->get('out_trade_no');// 订单号$trade_state= $this->input->get('trade_state');// 支付状态 0 成功$total_fee= $this->input->get('total_fee');// 订单金额$transaction_id= $this->input->get('transaction_id');// 微信支付流水号if($trade_state != 0){exit('falid');}$this->load->model('/order/checkOrder','order');$order = $this->order->getOrderInfo($out_trade_no);if(!$order){exit('falid');}if($order['pay_status'] == 1){exit('success');}// 获得用户名$this->load->model('user');$user = $this->user->getNameById($order['member_id']);// 获得payment_id$this->load->model('payments');$payment_id = $this->payments->getPaymentsId();//  生成收款单信息$our_total_fee= $total_fee/100;$pay_time= time();$payments = array();$payments['payment_id']= $payment_id;$payments['money']= $our_total_fee;$payments['cur_money']= $our_total_fee;$payments['member_id']= $order['member_id'];;$payments['status']= 'succ';$payments['pay_name']= '微信支付';$payments['pay_type']= 'online';$payments['t_payed']= $pay_time;$payments['op_id']= 10218489;// admin$payments['account']= '微信支付';$payments['pay_account']= $user['name'];$payments['currency']= 'CNY';$payments['pay_app_id']= '微信支付';$payments['t_begin']= $pay_time;$payments['t_confirm']= $pay_time;$payments['memo']= '微信支付';$payments['trade_no']= $transaction_id;$bills = array();$bills['rel_id']= $out_trade_no;$bills['bill_type']= 'payments';$bills['pay_object']= 'order';$bills['bill_id']= $payment_id;$bills['money']= $our_total_fee;/*-------------------------------------------------------------------------------- * 更新订单状态，生成收款单。生成银行单据 -------------------------------------------------------------------------------- */$this->db->trans_start();$status= array('pay_status'=>'1','payed'=>$our_total_fee);$where= array('order_id'=>$out_trade_no);$this->db->update('sdb_b2c_orders',$status,$where);$this->db->insert('sdb_ectools_payments',$payments);$this->db->insert('sdb_ectools_order_bills',$bills);$this->db->trans_complete();/*------------------------------------------------------------------------------- */if ($this->db->trans_status() === FALSE){exit('falid');}if($trade_state == 0){exit('success');}}private function checkParams(){$attach= $this->input->get('attach');//  支付提交 accach$partner= (int) $this->input->get('partner');//  商户号if($attach != '0d10b6fc91971c0a76c522ee1547ca66' || $partner != your id){exit('You are not allowed to visit this page.');}}public function rights(){// 用户维权接口 ，暂不使用。}public function delivernotify(){echo phpinfo();$c = curl_init();//}}

控制器调用

/*---------------------------------------------------------------------------------------------------------------------* 微信支付---------------------------------------------------------------------------------------------------------------------*/$this->load->library('wx_pay');$wxPay = new wx_pay();$wxPay->body= $body;$wxPay->product_fee= $wxPay->priceFormat($goods_price);$wxPay->transport_fee= $wxPay->priceFormat($ship_fee);$wxPay->total_fee= $wxPay->priceFormat($total_fee);$wxPay->out_trade_no= $order_id;$assign_data['wx_pay'] = $wxPay->makeParams();/*--------------------------------------------------------------------------------------------------------------------*/$this->load->view('/order/submit',$assign_data);