php 建行支付接口

<?php
// 假设已经获取到了支付参数
$merId = '商户ID';
$merKey = '商户密钥';
$orderNo = '订单号';
$amount = '金额';
$notifyUrl = '回调地址';

// 构建支付请求参数
$params = [
    'merId' => $merId,
    'orderNo' => $orderNo,
    'amount' => $amount,
    'notifyUrl' => $notifyUrl,
    // 其他必要参数
];

// 对参数进行签名
$sign = sign($params, $merKey);

// 将签名添加到参数中
$params['sign'] = $sign;

// 发送支付请求
$response = sendRequest('https://api.ccb.com/pay', $params);

if ($response['status'] == 'success') {
    echo '支付请求已成功发送';
} else {
    echo '支付请求发送失败';
}

// 签名函数
function sign($params, $merKey) {
    ksort($params);
    $str = '';
    foreach ($params as $key => $value) {
        $str .= "&$key=$value";
    }
    $str = substr($str, 1) . 'key=' . $merKey;
    return md5($str);
}

// 发送请求函数
function sendRequest($url, $params) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);
    curl_close($ch);
    return json_decode($response, true);
}
?>