php实现接口api数据签名及验签

<?php
// 请求URL
$url = "http://localhost/test22.php"; // 替换为实际的URL
// 要发送的数据
$data = array(
    'name' => 'John Doe',
    'email' => 'john@example.com'
);
$key="adsad123";
$data['sign']=sign($data,$key);
// 发送POST请求
$response = postRequest($url, $data);
// 处理响应
var_dump($response);
 
function sign($array,$key)
{
    // 1. 对数组按键进行升序排序
    ksort($array);
 
    // 2. 将键值对按顺序拼接到字符串中
    $str = "";
    foreach ($array as $k => $v) {
        $str .= $k . $v;
    }
 
    // 3. 添加密钥到拼接字符串末尾
    $restr = $str . $key;
 
    // 4. 对拼接字符串进行SHA1加密，并转换为大写
    $sign = strtoupper(sha1($restr));
 
    // 5. 返回生成的签名
    return $sign;
}
 
function postRequest($url, $data) {
    $postData = http_build_query($data);
 
    $curl = curl_init($url);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_POST, true);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $postData);
 
    $response = curl_exec($curl);
 
    if ($response === false) {
        $error = curl_error($curl);
        return "cURL Error: " . $error;
    } else {
        return $response;
    }
 
    curl_close($curl);
}

<?php
 
$key="adsad123";
$data=$_POST;
unset($data['sign']);
$sign=sign($data,$key);
 
if($sign==$_POST['sign']){
    echo '验签成功';
}else{
    echo '验签失败';
}
 
 
function sign($array,$key)
{
    // 1. 对数组按键进行升序排序
    ksort($array);
 
    // 2. 将键值对按顺序拼接到字符串中
    $str = "";
    foreach ($array as $k => $v) {
        $str .= $k . $v;
    }
 
    // 3. 添加密钥到拼接字符串末尾
    $restr = $str . $key;
 
    // 4. 对拼接字符串进行SHA1加密，并转换为大写
    $sign = strtoupper(sha1($restr));
 
    // 5. 返回生成的签名
    return $sign;
}