开发 Composer 包详细步骤

$ git clone git@github.com:guanguans/uploadfile.git
$ cd uploadfile

yzm@Alert MINGW64 /i/phpstudy/WWW/uploadfile
$ composer init


  Welcome to the Composer config generator



This command will guide you through creating your composer.json config.

Package name (<vendor>/<name>) [yzm/try-make-package]: guanguans/uploadfile
Description []: 一个通用文件上传包
Author [guanguans <53222411@qq.com>, n to skip]: guanguans <yzmguanguan@gmail.com>
Minimum Stability []: dev
Package Type (e.g. library, project, metapackage, composer-plugin) []: l                                                                                                    ibrary
License []: MIT

Define your dependencies.

Would you like to define your dependencies (require) interactively [yes]                                                                                                    ? yes
Search for a package: php
Enter the version constraint to require (or leave blank to use the lates                                                                                                    t version): >=5.4.0
Search for a package:
Would you like to define your dev dependencies (require-dev) interactive                                                                                                    ly [yes]? yes
Search for a package: php
Enter the version constraint to require (or leave blank to use the lates                                                                                                    t version): >=5.4.0
Search for a package:

{
    "name": "guanguans/uploadfile",
    "description": "一个通用文件上传包",
    "type": "library",
    "require": {
        "php": ">=5.4"
    },
    "require-dev": {
        "php": ">=5.4"
    },
    "license": "MIT",
    "authors": [
        {
            "name": "guanguans",
            "email": "yzmguanguan@gmail.com"
        }
    ],
    "minimum-stability": "dev"
}

Do you confirm generation [yes]? yes

yzm@Alert MINGW64 /i/phpstudy/WWW/uploadfile
$ composer init


  Welcome to the Composer config generator



This command will guide you through creating your composer.json config.

// 1. 输入项目命名空间
// 注意<vendor>/<name> 必须要符合 [a-z0-9_.-]+/[a-z0-9_.-]+
Package name (<vendor>/<name>) [dell/htdocs]: yourname/projectname

// 2. 项目描述
Description []: 这是一个测试

// 3. 输入作者信息，可以直接回车
Author [guanguans <53222411@qq.com>, n to skip]:

// 4. 输入最低稳定版本，stable, RC, beta, alpha, dev
Minimum Stability []: dev

// 5. 输入项目类型，
Package Type (e.g. library, project, metapackage, composer-plugin) []: library

// 6. 输入授权类型
License []:
> Define your dependencies.

// 7. 输入依赖信息
Would you like to define your dependencies (require) interactively [yes]?

// 如果需要依赖，则输入要安装的依赖
Search for a package: php

// 输入版本号
Enter the version constraint to require (or leave blank to use the latest version): >=5.4.0

// 如需多个，则重复以上两个步骤

// 8. 是否需要require-dev，
Would you like to define your dev dependencies (require-dev) interactively [yes]?

// 操作同上
{
    "name": "guanguans/uploadfile",
    "description": "一个通用文件上传包",
    "type": "library",
    "require": {
        "php": ">=5.4"
    },
    "require-dev": {
        "php": ">=5.4"
    },
    "license": "MIT",
    "authors": [
        {
            "name": "guanguans",
            "email": "yzmguanguan@gmail.com"
        }
    ],
    "minimum-stability": "dev"
}

// 9. 是否生成composer.json
Do you confirm generation [yes]? yes

"autoload": {
    "psr-4": {
        "Guanguans\": "src/"
    }
}

├─uploadfile                
│  ├─src                     
│  │  ├─UploadFile.php
│  └─composer.json

<?php
/**
 * 通用文件上传类
 * @author  guanguans <yzmguanguan@gmail.com>
 */
namespace Guanguans;  // 注意命名空间与 composer.json 中的一致

class UploadFile
{
    private $config = [   
        'maxSize'           =>  -1,    // 上传文件的最大值
        'supportMulti'      =>  true,    // 是否支持多文件上传
        'allowExts'         =>  [],    // 允许上传的文件后缀 留空不作后缀检查
        'allowTypes'        =>  [],    // 允许上传的文件类型 留空不做检查
        'thumb'             =>  false,    // 使用对上传图片进行缩略图处理
        'imageClassPath'    =>  'ORG.Util.Image',    // 图库类包路径
        'thumbMaxWidth'     =>  '',// 缩略图最大宽度
        'thumbMaxHeight'    =>  '',// 缩略图最大高度
        'thumbPrefix'       =>  'thumb_',// 缩略图前缀
        'thumbSuffix'       =>  '',
        'thumbPath'         =>  '',// 缩略图保存路径
        'thumbFile'         =>  '',// 缩略图文件名
        'thumbExt'          =>  '',// 缩略图扩展名
        'thumbRemoveOrigin' =>  false,// 是否移除原图
        'thumbType'         =>  1, // 缩略图生成方式 1 按设置大小截取 0 按原图等比例缩略
        'zipImages'         =>  false,// 压缩图片文件上传
        'autoSub'           =>  false,// 启用子目录保存文件
        'subType'           =>  'hash',// 子目录创建方式 可以使用hash date custom
        'subDir'            =>  '', // 子目录名称 subType为custom方式后有效
        'dateFormat'        =>  'Ymd',
        'hashLevel'         =>  1, // hash的目录层次
        'savePath'          =>  '',// 上传文件保存路径
        'autoCheck'         =>  true, // 是否自动检查附件
        'uploadReplace'     =>  false,// 存在同名是否覆盖
        'saveRule'          =>  'uniqid',// 上传文件命名规则
        'hashType'          =>  'md5_file',// 上传文件Hash规则函数名
    ];

    // 错误信息
    private $error = '';
    // 上传成功的文件信息
    private $uploadFileInfo ;

    public function __get($name){
        if(isset($this->config[$name])) {
            return $this->config[$name];
        }
        return null;
    }

    public function __set($name,$value){
        if(isset($this->config[$name])) {
            $this->config[$name]    =   $value;
        }
    }

    public function __isset($name){
        return isset($this->config[$name]);
    }

    /**
     * 架构函数
     * @access public
     * @param array $config  上传参数
     */
    public function __construct($config=[]) {
        if(is_array($config)) {
            $this->config   =   array_merge($this->config,$config);
        }
    }

    /**
     * 上传一个文件
     * @access public
     * @param mixed $name 数据
     * @param string $value  数据表名
     * @return string
     */
    private function save($file) {
        $filename = $file['savepath'].$file['savename'];
        if(!$this->uploadReplace && is_file($filename)) {
            // 不覆盖同名文件
            $this->error    =   '文件已经存在！'.$filename;
            return false;
        }
        // 如果是图像文件 检测文件格式
        if( in_array(strtolower($file['extension']), ['gif','jpg','jpeg','bmp','png','swf'])) {
            $info   = getimagesize($file['tmp_name']);
            if(false === $info || ('gif' == strtolower($file['extension']) && empty($info['bits']))){
                $this->error = '非法图像文件';
                return false;
            }
        }
        if(!move_uploaded_file($file['tmp_name'], $this->autoCharset($filename,'utf-8','gbk'))) {
            $this->error = '文件上传保存错误！';
            return false;
        }
        if($this->thumb && in_array(strtolower($file['extension']), ['gif','jpg','jpeg','bmp','png'])) {
            $image =  getimagesize($filename);
            if(false !== $image) {
                //是图像文件生成缩略图
                $thumbWidth     =   explode(',',$this->thumbMaxWidth);
                $thumbHeight    =   explode(',',$this->thumbMaxHeight);
                $thumbPrefix    =   explode(',',$this->thumbPrefix);
                $thumbSuffix    =   explode(',',$this->thumbSuffix);
                $thumbFile      =   explode(',',$this->thumbFile);
                $thumbPath      =   $this->thumbPath?$this->thumbPath:dirname($filename).'/';
                $thumbExt       =   $this->thumbExt ? $this->thumbExt : $file['extension']; //自定义缩略图扩展名
                // 生成图像缩略图
                import($this->imageClassPath);
                for($i=0,$len=count($thumbWidth); $i<$len; $i++) {
                    if(!empty($thumbFile[$i])) {
                        $thumbname  =   $thumbFile[$i];
                    }else{
                        $prefix     =   isset($thumbPrefix[$i])?$thumbPrefix[$i]:$thumbPrefix[0];
                        $suffix     =   isset($thumbSuffix[$i])?$thumbSuffix[$i]:$thumbSuffix[0];
                        $thumbname  =   $prefix.basename($filename,'.'.$file['extension']).$suffix;
                    }
                    if(1 == $this->thumbType){
                        Image::thumb2($filename,$thumbPath.$thumbname.'.'.$thumbExt,'',$thumbWidth[$i],$thumbHeight[$i],true);
                    }else{
                        Image::thumb($filename,$thumbPath.$thumbname.'.'.$thumbExt,'',$thumbWidth[$i],$thumbHeight[$i],true);
                    }

                }
                if($this->thumbRemoveOrigin) {
                    // 生成缩略图之后删除原图
                    unlink($filename);
                }
            }
        }
        if($this->zipImags) {
            // TODO 对图片压缩包在线解压

        }
        return true;
    }

    /**
     * 上传所有文件
     * @access public
     * @param string $savePath  上传文件保存路径
     * @return string
     */
    public function upload($savePath ='') {
        //如果不指定保存文件名，则由系统默认
        if(empty($savePath))
            $savePath = $this->savePath;
        // 检查上传目录
        if(!is_dir($savePath)) {
            // 检查目录是否编码后的
            if(is_dir(base64_decode($savePath))) {
                $savePath   =   base64_decode($savePath);
            }else{
                // 尝试创建目录
                if(!mkdir($savePath)){
                    $this->error  =  '上传目录'.$savePath.'不存在';
                    return false;
                }
            }
        }else {
            if(!is_writeable($savePath)) {
                $this->error  =  '上传目录'.$savePath.'不可写';
                return false;
            }
        }
        $fileInfo   = [];
        $isUpload   = false;

        // 获取上传的文件信息
        // 对$_FILES数组信息处理
        $files   =   $this->dealFiles($_FILES);
        foreach($files as $key => $file) {
            //过滤无效的上传
            if(!empty($file['name'])) {
                //登记上传文件的扩展信息
                if(!isset($file['key']))   $file['key']    =   $key;
                $file['extension']  =   $this->getExt($file['name']);
                $file['savepath']   =   $savePath;
                $file['savename']   =   $this->getSaveName($file);

                // 自动检查附件
                if($this->autoCheck) {
                    if(!$this->check($file))
                        return false;
                }

                //保存上传文件
                if(!$this->save($file)) return false;
                if(function_exists($this->hashType)) {
                    $fun =  $this->hashType;
                    $file['hash']   =  $fun($this->autoCharset($file['savepath'].$file['savename'],'utf-8','gbk'));
                }
                //上传成功后保存文件信息，供其他地方调用
                unset($file['tmp_name'],$file['error']);
                $fileInfo[] = $file;
                $isUpload   = true;
            }
        }
        if($isUpload) {
            $this->uploadFileInfo = $fileInfo;
            return true;
        }else {
            $this->error  =  '没有选择上传文件';
            return false;
        }
    }

    /**
     * 上传单个上传字段中的文件 支持多附件
     * @access public
     * @param array $file  上传文件信息
     * @param string $savePath  上传文件保存路径
     * @return string
     */
    public function uploadOne($file,$savePath=''){
        //如果不指定保存文件名，则由系统默认
        if(empty($savePath))
            $savePath = $this->savePath;
        // 检查上传目录
        if(!is_dir($savePath)) {
            // 尝试创建目录
            if(!mkdir($savePath,0777,true)){
                $this->error  =  '上传目录'.$savePath.'不存在';
                return false;
            }
        }else {
            if(!is_writeable($savePath)) {
                $this->error  =  '上传目录'.$savePath.'不可写';
                return false;
            }
        }
        //过滤无效的上传
        if(!empty($file['name'])) {
            $fileArray = [];
            if(is_array($file['name'])) {
               $keys = array_keys($file);
               $count    =   count($file['name']);
               for ($i=0; $i<$count; $i++) {
                   foreach ($keys as $key)
                       $fileArray[$i][$key] = $file[$key][$i];
               }
            }else{
                $fileArray[] =  $file;
            }
            $info =  [];
            foreach ($fileArray as $key=>$file){
                //登记上传文件的扩展信息
                $file['extension']  = $this->getExt($file['name']);
                $file['savepath']   = $savePath;
                $file['savename']   = $this->getSaveName($file);
                // 自动检查附件
                if($this->autoCheck) {
                    if(!$this->check($file))
                        return false;
                }
                //保存上传文件
                if(!$this->save($file)) return false;
                if(function_exists($this->hashType)) {
                    $fun =  $this->hashType;
                    $file['hash']   =  $fun($this->autoCharset($file['savepath'].$file['savename'],'utf-8','gbk'));
                }
                unset($file['tmp_name'],$file['error']);
                $info[] = $file;
            }
            // 返回上传的文件信息
            return $info;
        }else {
            $this->error  =  '没有选择上传文件';
            return false;
        }
    }

    /**
     * 转换上传文件数组变量为正确的方式
     * @access private
     * @param array $files  上传的文件变量
     * @return array
     */
    private function dealFiles($files) {
        $fileArray  = [];
        $n          = 0;
        foreach ($files as $key=>$file){
            if(is_array($file['name'])) {
                $keys       =   array_keys($file);
                $count      =   count($file['name']);
                for ($i=0; $i<$count; $i++) {
                    $fileArray[$n]['key'] = $key;
                    foreach ($keys as $_key){
                        $fileArray[$n][$_key] = $file[$_key][$i];
                    }
                    $n++;
                }
            }else{
               $fileArray[$key] = $file;
            }
        }
       return $fileArray;
    }

    /**
     * 获取错误代码信息
     * @access public
     * @param string $errorNo  错误号码
     * @return void
     */
    protected function error($errorNo) {
         switch($errorNo) {
            case 1:
                $this->error = '上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值';
                break;
            case 2:
                $this->error = '上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值';
                break;
            case 3:
                $this->error = '文件只有部分被上传';
                break;
            case 4:
                $this->error = '没有文件被上传';
                break;
            case 6:
                $this->error = '找不到临时文件夹';
                break;
            case 7:
                $this->error = '文件写入失败';
                break;
            default:
                $this->error = '未知上传错误！';
        }
        return ;
    }

    /**
     * 根据上传文件命名规则取得保存文件名
     * @access private
     * @param string $filename 数据
     * @return string
     */
    private function getSaveName($filename) {
        $rule = $this->saveRule;
        if(empty($rule)) {//没有定义命名规则，则保持文件名不变
            $saveName = $filename['name'];
        }else {
            if(function_exists($rule)) {
                //使用函数生成一个唯一文件标识号
                $saveName = $rule().".".$filename['extension'];
            }else {
                //使用给定的文件名作为标识号
                $saveName = $rule.".".$filename['extension'];
            }
        }
        if($this->autoSub) {
            // 使用子目录保存文件
            $filename['savename'] = $saveName;
            $saveName = $this->getSubName($filename).$saveName;
        }
        return $saveName;
    }

    /**
     * 获取子目录的名称
     * @access private
     * @param array $file  上传的文件信息
     * @return string
     */
    private function getSubName($file) {
        switch($this->subType) {
            case 'custom':
                $dir    =   $this->subDir;
                break;
            case 'date':
                $dir    =   date($this->dateFormat,time()).'/';
                break;
            case 'hash':
            default:
                $name   =   md5($file['savename']);
                $dir    =   '';
                for($i=0;$i<$this->hashLevel;$i++) {
                    $dir   .=  $name{$i}.'/';
                }
                break;
        }
        if(!is_dir($file['savepath'].$dir)) {
            mkdir($file['savepath'].$dir,0777,true);
        }
        return $dir;
    }

    /**
     * 检查上传的文件
     * @access private
     * @param array $file 文件信息
     * @return boolean
     */
    private function check($file) {
        if($file['error']!== 0) {
            //文件上传失败
            //捕获错误代码
            $this->error($file['error']);
            return false;
        }
        //文件上传成功，进行自定义规则检查
        //检查文件大小
        if(!$this->checkSize($file['size'])) {
            $this->error = '上传文件大小不符！';
            return false;
        }

        //检查文件Mime类型
        if(!$this->checkType($file['type'])) {
            $this->error = '上传文件MIME类型不允许！';
            return false;
        }
        //检查文件类型
        if(!$this->checkExt($file['extension'])) {
            $this->error ='上传文件类型不允许';
            return false;
        }

        //检查是否合法上传
        if(!$this->checkUpload($file['tmp_name'])) {
            $this->error = '非法上传文件！';
            return false;
        }
        return true;
    }

    // 自动转换字符集 支持数组转换
    private function autoCharset($fContents, $from='gbk', $to='utf-8') {
        $from   = strtoupper($from) == 'UTF8' ? 'utf-8' : $from;
        $to     = strtoupper($to) == 'UTF8' ? 'utf-8' : $to;
        if (strtoupper($from) === strtoupper($to) || empty($fContents) || (is_scalar($fContents) && !is_string($fContents))) {
            //如果编码相同或者非字符串标量则不转换
            return $fContents;
        }
        if (function_exists('mb_convert_encoding')) {
            return mb_convert_encoding($fContents, $to, $from);
        } elseif (function_exists('iconv')) {
            return iconv($from, $to, $fContents);
        } else {
            return $fContents;
        }
    }

    /**
     * 检查上传的文件类型是否合法
     * @access private
     * @param string $type 数据
     * @return boolean
     */
    private function checkType($type) {
        if(!empty($this->allowTypes))
            return in_array(strtolower($type),$this->allowTypes);
        return true;
    }


    /**
     * 检查上传的文件后缀是否合法
     * @access private
     * @param string $ext 后缀名
     * @return boolean
     */
    private function checkExt($ext) {
        if(!empty($this->allowExts))
            return in_array(strtolower($ext),$this->allowExts,true);
        return true;
    }

    /**
     * 检查文件大小是否合法
     * @access private
     * @param integer $size 数据
     * @return boolean
     */
    private function checkSize($size) {
        return !($size > $this->maxSize) || (-1 == $this->maxSize);
    }

    /**
     * 检查文件是否非法提交
     * @access private
     * @param string $filename 文件名
     * @return boolean
     */
    private function checkUpload($filename) {
        return is_uploaded_file($filename);
    }

    /**
     * 取得上传文件的后缀
     * @access private
     * @param string $filename 文件名
     * @return boolean
     */
    private function getExt($filename) {
        $pathinfo = pathinfo($filename);
        return $pathinfo['extension'];
    }

    /**
     * 取得上传文件的信息
     * @access public
     * @return array
     */
    public function getUploadFileInfo() {
        return $this->uploadFileInfo;
    }

    /**
     * 取得最后一次错误信息
     * @access public
     * @return string
     */
    public function getErrorMsg() {
        return $this->error;
    }
}

yzm@Alert MINGW64 /i/phpstudy/WWW/uploadfile
$ composer install

<?php

require_once '../vendor/autoload.php';

use GuanguansUploadFile;

$upload = new UploadFile();
$upload->maxSize       = 1*1024*1024;    // 默认为-1，不限制上传大小
$upload->savePath      = './upload/';    // 上传根目录
$upload->saveRule      = 'uniqid';       // 上传文件的文件名保存规则
$upload->uploadReplace = true;           // 如果存在同名文件是否进行覆盖
$upload->autoSub       = true;           // 上传子目录开启
$upload->subType       = 'date';         // 上传子目录命名规则
$upload->allowExts     = ['jpg', 'png']; // 允许类型

if ($upload->upload()) {
    var_dump($upload->getUploadFileInfo());
} else {
    var_dump($upload->getErrorMsg());
}

<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>uploadfile test</title>
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
    <form action="UpploadfileTest.php" method="post" enctype="multipart/form-data">
        <div class="form-group">
            <label>单文件上传</label>
            <input type="file" name="uploadfile">
        </div>
        <button type="submit" class="btn btn-primary">Submit</button>
    </form>
    <hr>
    <form action="UpploadfileTest.php" method="post" enctype="multipart/form-data">
        <div class="form-group">
            <label>多文件上传</label>
            <input type="file" name="uploadfile[]">
            <input type="file" name="uploadfile[]">
        </div>
        <button type="submit" class="btn btn-primary">Submit</button>
    </form>
</body>
</html>

├─uploadfile                扩展包根目录
│  ├─src                    扩展包代码目录
│  │  ├─UploadFile.php
│  ├─test                   测试目录
│  │  ├─uploadfile.html
│  │  ├─UpploadfileTest.php
│  ├─.gitignore
│  ├─composer.json
│  ├─LICENSE
│  └─README.md

git add .
git commit -m 'init'
git tag v1.0.0 // 记住打一个版本号
git push origin master
git push v1.0.0

composer create-project laravel/laravel
cd laravel
composer require guanguans/uploadfile