vue获取微信签名php算法接口

<?php
header("Access-Control-Allow-Origin: *");
$appId = '';
$appsecret = '';
$timestamp = time();
$jsapi_ticket = make_ticket($appId,$appsecret);
$nonceStr = make_nonceStr();
$url = 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
// $url = $_GET['url'];
$signature = make_signature($nonceStr,$timestamp,$jsapi_ticket,$url);
function make_nonceStr()
{
    $codeSet = '1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    for ($i = 0; $i<16; $i++) {
        $codes[$i] = $codeSet[mt_rand(0, strlen($codeSet)-1)];
    }
    $nonceStr = implode($codes);
    return $nonceStr;
}
function make_signature($nonceStr,$timestamp,$jsapi_ticket,$url)
{
    $tmpArr = array(
    'noncestr' => $nonceStr,
    'timestamp' => $timestamp,
    'jsapi_ticket' => $jsapi_ticket,
    'url' => $url
    );
    ksort($tmpArr, SORT_STRING);
    $string1 = http_build_query( $tmpArr );
    $string1 = urldecode( $string1 );
    $signature = sha1( $string1 );
    return $signature;
}
function make_ticket($appId,$appsecret)
{
    // access_token 应该全局存储与更新，以下代码以写入到文件中做示例
    $data = json_decode(file_get_contents("access_token.json"));
    if ($data->expire_time < time()) {
        $TOKEN_URL="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appId."&secret=".$appsecret;
        $json = file_get_contents($TOKEN_URL);
        $result = json_decode($json,true);
        $access_token = $result['access_token'];
        if ($access_token) {
            $data->expire_time = time() + 7000;
            $data->access_token = $access_token;
            $fp = fopen("access_token.json", "w");
            fwrite($fp, json_encode($data));
            fclose($fp);
        }
    }else{
        $access_token = $data->access_token;
    }
    // jsapi_ticket 应该全局存储与更新，以下代码以写入到文件中做示例
    $data = json_decode(file_get_contents("jsapi_ticket.json"));
    if ($data->expire_time < time()) {
        $ticket_URL="https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=".$access_token."&type=jsapi";
        $json = file_get_contents($ticket_URL);
        $result = json_decode($json,true);
        $ticket = $result['ticket'];
        if ($ticket) {
            $data->expire_time = time() + 7000;
            $data->jsapi_ticket = $ticket;
            $fp = fopen("jsapi_ticket.json", "w");
            fwrite($fp, json_encode($data));
            fclose($fp);
        }
    }else{
        $ticket = $data->jsapi_ticket;
    }
    return $ticket;
}


$weidata = array('appId' => $appId, 'timestamp' => $timestamp, 'nonceStr'=> $nonceStr, 'signature' => $signature, 'url' => $url);
echo json_encode($weidata);
?>

作为一名前端程序猿，还要写后端接口，说起就是泪。希望对大家有帮助吧！