php 简单实现上传文件到七牛

一、前端

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
    <title>上传图片</title>
    <style>
        button{cursor: pointer;height: 30px;}
        .item-line{display: flex;flex-wrap: wrap;}
    </style>
</head>
<body>
<div class="weui-cells weui-cells_form">
    <form action="HandleImg.php" method="post" enctype="multipart/form-data">
        <div class="body">
            <div class="item">
                <div class="item-line"><p>图片1:</p>&nbsp;<p><input type="file" name="img1" ></p></div>
                <div class="item-line"><p>图片2:</p>&nbsp;<p><input type="file" name="img2" ></p></div>
            </div>
            <div class="but-body">
                <button type="submit">提交上传</button>
                <a href="/">取消</a>
            </div>
        </div>
    </form>
</div>
</body>
</html>

二、处理里图片

<?php

if(isGet()){
    header("location:/");
}

include \'service/UploadService.php\';

header(\'Content-Type:text/html; charset=utf-8;\');

$servername = "127.0.0.1";

$username = "root";

$password = "root";

$dbname = \'jiacheng\';

//$servername = "156.232.241.211";
//$username = "a240386333";
//$password = "chen123";
//$dbname = "a240386333";

$conn = mysqli_connect($servername, $username, $password, $dbname);
// 检测连接
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}


if(isset($_FILES) && !empty($_FILES)){
    $file=$_FILES;
//    print_r($file);

    $data=[\'url1\'=>\'\',\'url2\'=>\'\'];
    if($file[\'img1\'][\'error\']==4 && $file[\'img2\'][\'error\']==4){
        jump();
        die;
    }
    if($file[\'img1\'][\'error\']==0){
        $res=service\UploadService::upload($file[\'img1\']);
        if($res[\'code\']==0){
            $data[\'url1\']=$res[\'data\'][\'url\'];
        }
    }

    if($file[\'img2\'][\'error\']==0){
        $res=service\UploadService::upload($file[\'img2\']);
//        echo \'$res\';
//        print_r($res);
        if($res[\'code\']==0){
            $data[\'url2\']=$res[\'data\'][\'url\'];
        }
    }
//    echo \'data:\';
//    print_r($data);

    update($conn,$data);
    die;
}

jump();

function update($conn,$data){

    if($data[\'url1\']==\'\'&&$data[\'url2\']==\'\'){
        jump(\'上传失败\');
        die;
    }
    else if($data[\'url1\']!=\'\'&&$data[\'url2\']!=\'\'){
        $updatesql="UPDATE chen set u1=\'".$data[\'url1\']."\' , u2=\'".$data[\'url2\']."\' where id=0";
    }
    else if($data[\'url1\']!=\'\'&&$data[\'url2\']==\'\'){
        $updatesql="UPDATE chen set u1=\'".$data[\'url1\']."\' where id=0";
    }
    else if($data[\'url1\']==\'\'&&$data[\'url2\']!=\'\'){
        $updatesql="UPDATE chen set u2=\'".$data[\'url2\']."\' where id=0";
    }

    $retval=mysqli_query($conn,$updatesql);
    if(!$retval)
    {
        jump(\'更新失败\',1);
        die;
    }

    $conn->close();
    jump(\'更新成功\',0);
    die;
}

function jump($msg=\'请选择图片\',$code=1){
    $url=$code==1?\'/upload.html\':\'/upload.html\';
    $js="<script>
        alert(\'{$msg}\');
        setTimeout(function(){
            location.href=\'{$url}\';
        },1500)
    
    </script>";
    echo $js;
}

//是否是GET提交
function isGet(){
    return $_SERVER[\'REQUEST_METHOD\'] == \'GET\' ? true : false;
}

三、七牛上传核心文件

sdk地址： https://github.com/qiniu/php-sdk

   /**
     * 上传资源
     * @param $file
     * @return array
     * @throws \Exception
     */
    public static function upload($file){
        try{
            $accessKey = \'\';//AK
            $secretKey = \'\';//SK
            $qn_domain=\'\';//绑定域名
            $auth=new Auth($accessKey,$secretKey);
            $bucket=\'\';//存储空间
            $token = $auth->uploadToken($bucket);
            $uploadMgr = new \Qiniu\Storage\UploadManager();
            $filePath = $file[\'tmp_name\'];//\'./php-logo.png\';  //接收图片信息
            if($file[\'type\']==\'video/mp4\'){
                $key = \'video\'.time().\'.mp4\';
            }elseif($file[\'type\']==\'audio/mp3\'){
                $key = \'audio\'.time().\'.mp3\';
            }else{
                $key = \'png\'.time().\'.png\';
            }
            list($ret, $err) = $uploadMgr->putFile($token, $key, $filePath);

            if($err!=null){
                return ["code"=> 1,"msg"=> $err];
            } else {
                //返回图片的完整URL
                $url ="http://{$qn_domain}/".$ret[\'key\'];
                $data=[\'url\'=>$url];
                return [\'code\'=>0,\'msg\'=>\'上传成功\',\'data\'=>$data];
            }
        }catch (\Exception $e){
            return ["code"=> 1,"msg"=> $e->getMessage()];
        }

    }