'.$appid.'
'.$attach.'
'.$body.'
'.$mch_id.'
'.$nonce_str.'
'.$notify_url.'
'.$openid.'
'.$out_trade_no.'
'.$spbill_create_ip.'
'.$total_fee.'
'.$trade_type.'
'.$sign.'
';
// dump($post_xml);
//统一接口prepay_id
$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';
$xml = self::http_request($url,$post_xml);
$array = self::xml($xml);//全要大写
if($array['RETURN_CODE'] == 'SUCCESS' && $array['RESULT_CODE'] == 'SUCCESS'){
$time = time();
$tmp='';//临时数组用于签名
$tmp['appId'] = $appid;
$tmp['nonceStr'] = $nonce_str;
$tmp['package'] = 'prepay_id='.$array['PREPAY_ID'];
$tmp['signType'] = 'MD5';
$tmp['timeStamp'] = "$time";
$data['state'] = 1;
$data['timeStamp'] = "$time";//时间戳
$data['nonceStr'] = $nonce_str;//随机字符串
$data['signType'] = 'MD5';//签名算法，暂支持 MD5
$data['package'] = 'prepay_id='.$array['PREPAY_ID'];//统一下单接口返回的 prepay_id 参数值，提交格式如：prepay_id=*
$data['paySign'] = self::sign($tmp);//签名,具体签名方案参见微信公众号支付帮助文档;
$data['out_trade_no'] = $out_trade_no;
}else{
$data['state'] = 0;
$data['text'] = "错误";
$data['RETURN_CODE'] = $array['RETURN_CODE'];
$data['RETURN_MSG'] = $array['RETURN_MSG'];
}
return $data;
}
//随机32位字符串
public static function nonce_str(){
$result = '';
$str = 'QWERTYUIOPASDFGHJKLZXVBNMqwertyuioplkjhgfdsamnbvcxz';
for ($i=0;$i<32;$i++){
$result .= $str[rand(0,48)];
}
return $result;
}
public static function order_number($openid){
return md5($openid.time().rand(10,99));//32位
}
//签名 $data要先排好顺序
public static function sign($data){
$stringA = '';
foreach ($data as $key=>$value){
if(!$value) continue;
if($stringA) $stringA .= '&'.$key."=".$value;
else $stringA = $key."=".$value;
}
$wx_key = self::options()['pay_routine_key'] ? self::options()['pay_routine_key'] : '';//申请支付后有给予一个商户账号和密码，登陆后自己设置key
$stringSignTemp = $stringA.'&key='.$wx_key;//申请支付后有给予一个商户账号和密码，登陆后自己设置key
// dump($stringSignTemp);
return strtoupper(md5($stringSignTemp));
}
//curl请求
public static function http_request($url,$data = null,$headers=array())
{
$curl = curl_init();
if( count($headers) >= 1 ){
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
}
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
if (!empty($data)){
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
}
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($curl);
curl_close($curl);
return $output;
}
//获取xml
public static function xml($xml){
$p = xml_parser_create();
xml_parse_into_struct($p, $xml, $vals, $index);
xml_parser_free($p);
$data = "";
foreach ($index as $key=>$value) {
if($key == 'xml' || $key == 'XML') continue;
$tag = $vals[$value[0]]['tag'];
$value = $vals[$value[0]]['value'];
$data[$tag] = $value;
}
return $data;
}
public static function get_server_ip() {
if (isset($_SERVER)) {
if($_SERVER['SERVER_ADDR']) {
$server_ip = $_SERVER['SERVER_ADDR'];
}
else {
$server_ip = $_SERVER['LOCAL_ADDR'];
}
}
else {
$server_ip = getenv('SERVER_ADDR');
}
return $server_ip;
}
}