框架篇：1.框架目录与辅助

# 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>) yourname/projectname

# 2. 项目描述
Description []:这是一个测试composer init 项目

# 3. 输入作者信息
Author [puresai <[email protected]>, 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) []:project

# 6. 输入授权类型
License []:MIT

Define your dependencies.

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

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

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

#  如需多个依赖，则重复以上两个步骤(7.1/7.2)
Search for a package:

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


{
    "name": "sai/saif",
    "description": "php framework",
    "type": "project",
    "require": {
    },
    "license": "MIT",
    "authors": [
        {
            "name": "puresai",
            "email": "[email protected]"
        }
    ],
    "minimum-stability": "dev"
}

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

# 现在安装依赖项吗
Would you like to install dependencies now [yes]?

"autoload": {
    "psr-4": {
        "Library\\": "library/",
        "App\\": "app/"
    },
    "files": [
        "library/Functions.php"
    ]
}

<?php
/**
 * 常用函数
 */
 
if (!function_exists("p")) {
    function p($var)
    {
        if (is_bool($var)) {
            var_dump($var);
        } elseif (is_null($var)) {
            var_dump(null);
        } else {
            die("<meta charset='utf-8'/>
<pre style='position:relative;
z-index:999;
padding:10px;
border-radius:5px;
background:#f5f5f5;
border:1px solid #aaa;
font-size:14px;
line-height:18px;
opacity:0.8;'>".print_r($var, true)."</pre>");
        }
    }
}

······

<?php

namespace Library\Exceptions;

class SaiException extends \Exception
{
    const CODE_MAPPING = [
        100 => 'Continue',
        101 => 'Switching Protocols',
        102 => 'Processing',

        200 => 'OK',
        201 => 'Created',
        202 => 'Accepted',
        203 => 'Non-Authoritative Information',
        204 => 'No Content',
        205 => 'Reset Content',
        206 => 'Partial Content',
        207 => 'Multi-Status',
        226 => 'IM Used',

        300 => 'Multiple Choices',
        301 => 'Moved Permanently',
        302 => 'Found',
        303 => 'See Other',
        304 => 'Not Modified',
        305 => 'Use Proxy',
        306 => 'Reserved',
        307 => 'Temporary Redirect',

        400 => 'Bad Request',
        401 => 'Unauthorized',
        402 => 'Payment Required',
        403 => 'Forbidden',
        404 => 'Not Found',
        405 => 'Method Not Allowed',
        406 => 'Not Acceptable',
        407 => 'Proxy Authentication Required',
        408 => 'Request Timeout',
        409 => 'Conflict',
        410 => 'Gone',
        411 => 'Length Required',
        412 => 'Precondition Failed',
        413 => 'Request Entity Too Large',
        414 => 'Request-URI Too Long',
        415 => 'Unsupported Media Type',
        416 => 'Requested Range Not Satisfiable',
        417 => 'Expectation Failed',
        422 => 'Unprocessable Entity',
        423 => 'Locked',
        424 => 'Failed Dependency',
        426 => 'Upgrade Required',
        429 => 'Too Many Request',

        500 => 'Internal Server Error',
        501 => 'Not Implemented',
        502 => 'Bad Gateway',
        503 => 'Service Unavailable',
        504 => 'Gateway Timeout',
        505 => 'HTTP Version Not Supported',
        506 => 'Variant Also Negotiates',
        507 => 'Insufficient Storage',
        510 => 'Not Extended',

        1001 => 'LACK PARAMS',
        1002 => 'RETRY TOO MANY',
    ];

    /**
     * 输出指定HTTP状态码的响应头信息
     * @param int $code
     * @param $data
     * @return void
     */
    public function response($code, $data){
        $code = array_key_exists($code, self::CODE_MAPPING)? $code : 500;
        $desc = self::CODE_MAPPING[$code];

        $protocol = $_SERVER['SERVER_PROTOCOL'];
        if ( 'HTTP/1.1' != $protocol && 'HTTP/1.0' != $protocol )
            $protocol = 'HTTP/1.0';
        $header = "$protocol $code $desc";
        header($header);
        p($data);
    }
}

<?php

namespace Library\Components;

class Base implements \ArrayAccess
{
    private $_container;

    public function __get($name)
    {
        if (method_exists($this, $method = 'get'.ucfirst($name))) {
            return $this->$method($name);
        }

        return null;
    }

    public function __set($name, $value)
    {
        if (method_exists($this, $method = 'set'.ucfirst($name))) {
            return $this->$method($name, $value);
        }
    }

    public function offsetSet($offset, $value) 
    {
        if (is_null($offset)) {
            $this->_container[] = $value;
        } else {
            $this->_container[$offset] = $value;
        }
    }
    public function offsetExists($offset)
    {
        return isset($this->_container[$offset]);
    }

    public function offsetUnset($offset)
    {
        unset($this->_container[$offset]);
    }

    public function offsetGet($offset)
    {
        return isset($this->_container[$offset]) ? $this->_container[$offset] : null;
    }
}