php 微信公众号企业转账功能

企业付款提供由商户直接付钱至用户微信零钱的能力，支持平台操作及接口调用两种方式，资金到账速度快，使用及查询方便。主要用来解决合理的商户对用户付款需求，比如：保险理赔、彩票兑换等等。

特点

发起方式灵活，可通过页面或接口发起
微信消息触达，用户及时获知入账详情
支持实名校验，判断收款人真实身份
通过openid即可实现付款，无需用户敏感隐私信息
到账速度快，在发起后，用户可在几分钟内收到付款

企业转账需要到微信商户平台=》产品中心=》企业付款到零钱，开启此功能

下面是程序截图：

第一步：设置配置参数

$url='https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers';
$pars = array();
$pars['mch_appid'] =$this->module['config']['appid'];
$pars['mchid']=$this->module['config']['mchid'];
$pars['nonce_str'] =random(32);
$pars['partner_trade_no'] =time().random(3,1);
$pars['openid'] =$openid;
$pars['check_name'] ='NO_CHECK' ;
//$pars['re_user_name'] ='' ;
$monet_finall = $price * 100;
$pars['amount'] =$monet_finall;  //这里是折算成1%的所以要*100
$pars['desc'] ='您已成功提现 '.$price.' 现金';
$pars['spbill_create_ip'] =$this->module['config']['ip'];ksort($pars, SORT_STRING);
$string1 = '';
foreach ($pars as $k => $v) {$string1 .= "{$k}={$v}&";
}$string1 .= "key=".$this->module['config']['password'];
$pars['sign'] = strtoupper(md5($string1));
$xml = array2xml($pars);
$extras = array();
$extras['CURLOPT_CAINFO'] = ATTACHMENT_ROOT . '/withdraw/cert/rootca.pem.' . $_W['uniacid'];
$extras['CURLOPT_SSLCERT'] = ATTACHMENT_ROOT     . '/withdraw/cert/apiclient_cert.pem.' . $_W['uniacid'];
$extras['CURLOPT_SSLKEY'] = ATTACHMENT_ROOT . '/withdraw/cert/apiclient_key.pem.' . $_W['uniacid'];
$procResult = null;

第二步：CURL请求微信服务器

load()->func('communication');
$resp = ihttp_request($url, $xml, $extras);

其中ihttp_request函数内容是：

function ihttp_request($url, $post = '', $extra = array(), $timeout = 60) {$urlset = parse_url($url);if (empty($urlset['path'])) {$urlset['path'] = '/';}if (!empty($urlset['query'])) {$urlset['query'] = "?{$urlset['query']}";}if (empty($urlset['port'])) {}if (strexists($url, 'https://') && !extension_loaded('openssl')) {if (!extension_loaded("openssl")) {message('请开启您PHP环境的openssl');}}if (function_exists('curl_init') && function_exists('curl_exec')) {$ch = curl_init();if (!empty($extra['ip'])) {$extra['Host'] = $urlset['host'];$urlset['host'] = $extra['ip'];unset($extra['ip']);}curl_setopt($ch, CURLOPT_URL, $urlset['scheme'] . '://' . $urlset['host'] . ($urlset['port'] == '80' || empty($urlset['port']) ? '' : ':' . $urlset['port']) . $urlset['path'] . $urlset['query']);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);@curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);curl_setopt($ch, CURLOPT_HEADER, 1);@curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);if ($post) {if (is_array($post)) {$filepost = false;foreach ($post as $name => &$value) {if (version_compare(phpversion(), '5.6') >= 0 && substr($value, 0, 1) == '@') {$value = new CURLFile(ltrim($value, '@'));}if ((is_string($value) && substr($value, 0, 1) == '@') || (class_exists('CURLFile') && $value instanceof CURLFile)) {$filepost = true;}}if (!$filepost) {$post = http_build_query($post);}}curl_setopt($ch, CURLOPT_POST, 1);curl_setopt($ch, CURLOPT_POSTFIELDS, $post);}if (!empty($GLOBALS['_W']['config']['setting']['proxy'])) {$urls = parse_url($GLOBALS['_W']['config']['setting']['proxy']['host']);if (!empty($urls['host'])) {curl_setopt($ch, CURLOPT_PROXY, "{$urls['host']}:{$urls['port']}");$proxytype = 'CURLPROXY_' . strtoupper($urls['scheme']);if (!empty($urls['scheme']) && defined($proxytype)) {curl_setopt($ch, CURLOPT_PROXYTYPE, constant($proxytype));} else {curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);}if (!empty($GLOBALS['_W']['config']['setting']['proxy']['auth'])) {curl_setopt($ch, CURLOPT_PROXYUSERPWD, $GLOBALS['_W']['config']['setting']['proxy']['auth']);}}}curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);curl_setopt($ch, CURLOPT_SSLVERSION, 1);if (defined('CURL_SSLVERSION_TLSv1')) {curl_setopt($ch, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);}curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:9.0.1) Gecko/20100101 Firefox/9.0.1');if (!empty($extra) && is_array($extra)) {$headers = array();foreach ($extra as $opt => $value) {if (strexists($opt, 'CURLOPT_')) {curl_setopt($ch, constant($opt), $value);} elseif (is_numeric($opt)) {curl_setopt($ch, $opt, $value);} else {$headers[] = "{$opt}: {$value}";}}if (!empty($headers)) {curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);}}$data = curl_exec($ch);$status = curl_getinfo($ch);$errno = curl_errno($ch);$error = curl_error($ch);curl_close($ch);if ($errno || empty($data)) {return error(1, $error);} else {return ihttp_response_parse($data);}}$method = empty($post) ? 'GET' : 'POST';$fdata = "{$method} {$urlset['path']}{$urlset['query']} HTTP/1.1\r\n";$fdata .= "Host: {$urlset['host']}\r\n";if (function_exists('gzdecode')) {$fdata .= "Accept-Encoding: gzip, deflate\r\n";}$fdata .= "Connection: close\r\n";if (!empty($extra) && is_array($extra)) {foreach ($extra as $opt => $value) {if (!strexists($opt, 'CURLOPT_')) {$fdata .= "{$opt}: {$value}\r\n";}}}$body = '';if ($post) {if (is_array($post)) {$body = http_build_query($post);} else {$body = urlencode($post);}$fdata .= 'Content-Length: ' . strlen($body) . "\r\n\r\n{$body}";} else {$fdata .= "\r\n";}if ($urlset['scheme'] == 'https') {$fp = fsockopen('ssl://' . $urlset['host'], $urlset['port'], $errno, $error);} else {$fp = fsockopen($urlset['host'], $urlset['port'], $errno, $error);}stream_set_blocking($fp, true);stream_set_timeout($fp, $timeout);if (!$fp) {return error(1, $error);} else {fwrite($fp, $fdata);$content = '';while (!feof($fp))$content .= fgets($fp, 512);fclose($fp);return ihttp_response_parse($content, true);}
}

第三步：解析分析微信服务器返回值并返回。

if (is_error($resp)) {$procResult = $resp;
} else {$arr=json_decode(json_encode((array) simplexml_load_string($resp['content'])), true);$xml = '<?xml version="1.0" encoding="utf-8"?>' . $resp['content'];$dom = new \DOMDocument();if ($dom->loadXML($xml)) {$xpath = new \DOMXPath($dom);$code = $xpath->evaluate('string(//xml/return_code)');$ret = $xpath->evaluate('string(//xml/result_code)');if (strtolower($code) == 'success' && strtolower($ret) == 'success') {$procResult =  array('errno'=>0,'error'=>'success');;} else {$error = $xpath->evaluate('string(//xml/err_code_des)');$procResult = array('errno'=>-2,'error'=>$error);}} else {$procResult = array('errno'=>-1,'error'=>'未知错误');}
}return $procResult;

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