composer组件和用法

1. monolog 日志

网址：https://github.com/Seldaek/monolog

命令:

$ composer require monolog/monolog

<?php
    require 'vendor/autoload.php';

    use Monolog\Logger;
    use Monolog\Handler\StreamHandler;

    // 创建一个日志
    $log = new Logger('name');
    $log->pushHandler(new StreamHandler('path/to/  your.log', Logger::WARNING));

    // 将记录添加到日志中
    $log->warning('Foo');
    $log->error('Bar');

2. starlit/db

网址：https://github.com/starweb/starlit-db

$ composer require starlit/db

测试：

<?php
    require 'vendor/autoload.php';

    use Starlit\Db\Db;

    $db = new Db('localhost', 'zhangsan', '123', 'mydb');
    //echo $db->insert('stu', ['id'=>null,'name' => 'zhangwuji','age'=>20]);
    $res = $db->fetchRows("select * from stu where id=:id",['id'=>2]);
    echo "<pre>";
    print_r($res);

3. 验证码

安装命令：

composer require gregwar/captcha

在composer.json中添加:

"require": {
    ...
    ...
    "gregwar/captcha": "1.*"
  },

具体使用

<?php
    require 'vendor/autoload.php';

    use Gregwar\Captcha\CaptchaBuilder; 
    use Gregwar\Captcha\PhraseBuilder;

    $phrase = new PhraseBuilder();
    // 设置验证码位数
    $code = $phrase->build(6);
    // 生成验证码图片的Builder对象，配置相应属性
    $builder = new CaptchaBuilder($code, $phrase);
    // 设置背景颜色
    $builder->setBackgroundColor(220, 210, 230);
    $builder->setMaxAngle(25);
    $builder->setMaxBehindLines(0);
    $builder->setMaxFrontLines(0);
    // 可以设置图片宽高及字体
    $builder->build($width = 100, $height = 40, $font = null);
    // 获取验证码的内容
    $phrase = $builder->getPhrase();
    // 把内容存入session
    //\Session::flash('code', $phrase);
    // 生成图片
    header("Cache-Control: no-cache, must-revalidate");
    header("Content-Type:image/jpeg");
    $builder->output();

4. 基于词库的中文转拼音优质解决方案 overtrue/pinyin

网址：https://github.com/overtrue/pinyin

composer require "overtrue/pinyin:~3.0"

<?php
    require 'vendor/autoload.php';

    use Overtrue\Pinyin\Pinyin;

    $pinyin = new Pinyin();

    $pinyin->convert('带着希望去旅行，比到达终点更美好');
    // ["dai", "zhe", "xi", "wang", "qu", "lv", "xing", "bi", "dao", "da", "zhong", "dian", "geng", "mei", "hao"]

    $pinyin->convert('带着希望去旅行，比到达终点更美好', PINYIN_UNICODE);
    // ["dài","zhe","xī","wàng","qù","lǚ","xíng","bǐ","dào","dá","zhōng","diǎn","gèng","měi","hǎo"]

    $pinyin->convert('带着希望去旅行，比到达终点更美好', PINYIN_ASCII);
    //["dai4","zhe","xi1","wang4","qu4","lv3","xing2","bi3","dao4","da2","zhong1","dian3","geng4","mei3","hao3"]

5. twbs／Bootstrap

网址：https://github.com/twbs/bootstrap

composer require twbs/bootstrap

6. Composer的endroid/Qrcode二维码组件

网址:https://github.com/endroid/QrCode

安装命令：

$ composer require endroid/qrcode

具体使用：

<?php
    use Endroid\QrCode\QrCode;

    $qrCode = new QrCode();
    $qrCode->setText('Life is too short to be generating QR codes')
           ->setSize(300)
           ->setPadding(10)
           ->setErrorCorrection('high')
           ->setForegroundColor(array('r' => 0, 'g' => 0, 'b' => 0, 'a' => 0))
           ->setBackgroundColor(array('r' => 255, 'g' => 255, 'b' => 255, 'a' => 0))
           ->setLabel('Scan the code')
           ->setLabelFontSize(16)
           ->setImageType(QrCode::IMAGE_TYPE_PNG);

    // now we can directly output the qrcode
    header('Content-Type: '.$qrCode->getContentType());
    $qrCode->render();

    // or create a response object
    $response = new Response($qrCode->get(), 200, array('Content-Type' => $qrCode->getContentType()));

7. Guzzle HTTP客户端组件

网址：https://github.com/guzzle/guzzle
官方网站： http://guzzlephp.org/
环境要求
>=PHP5.5
在php.ini中开启 allow_url_fopen
cURL >= 7.19.4 并支持OpenSSL和zlib

安装命令：

$ composer require guzzlehttp/guzzle:~6.0

参考实例代码：

创建一个客户端

<?php
    setCookie("name","lisi",time()+3600,"/");
    require("../vendor/autoload.php");

    use GuzzleHttp\Client;

    $client = new Client([
        // 基本URI用于相对请求
        'base_uri' => 'http://192.168.33.10',
        //你可以设置任意数量的默认值
        'timeout'  => 2.0,
        //'cookies' => $jar,
    ]);

    //GET请求及带参数
    $response = $client->request("GET","/mydemo/public/1.php?id=10");
    //$response = $client->request("GET","/mydemo/public/1.php",['query'=>["name"=>"zhangsan","age"=>20]]);
    //$response = $client->get("/mydemo/public/1.php",['query'=>["name"=>"zhangsan","age"=>20]]);

    //POST请求并带参数
    //$response = $client->request("POST","/mydemo/public/1.php",['form_params'=>["name"=>"zhangsan","age"=>20]]);
    //$response = $client->post("/mydemo/public/1.php",['form_params'=>["name"=>"zhangsan","age"=>20]]);

    /*
    //带上传信息
    $response = $client->request('POST', '/mydemo/public/1.php',['multipart'=>[[
                'name'     => 'file_name',
                'contents' => fopen('./1.png', 'r'),
                   'filename' => '1.png',
                 ]]]);
    */

    //携带Cookie信息
    //$jar = \GuzzleHttp\Cookie\CookieJar::fromArray(['name'=>"zhangsan"],"192.168.33.10");
    //$response = $client->request('GET', '/mydemo/public/1.php',['cookies'=>$jar]);


    //处理相应
    //var_dump($response);
    /*
    echo "code:".$response->getStatusCode()."<br/>"; //获取响应状态码200
    echo "reason:".$response->getReasonPhrase()."<br/>"; //响应是否成功OK

    //判断响应头是否存在
    if ($response->hasHeader('Content-Length')) {
        echo "It exists";
    }
    //获取指定某个响应头信息
    echo $response->getHeader('Content-Length');
    //获取所有响应头信息
    foreach ($response->getHeaders() as $name => $values) {
        echo $name . ': ' . implode(', ', $values) . "\r\n";
    }
    */
    $body = $response->getBody();
    // 隐式地将主体转换为字符串并对其进行响应
    //var_dump($body);
    //echo $body;
    //显式地将主体转换为字符串
    //$stringBody = (string) $body;
    // 从正文中读取10个字节
    //echo $tenBytes = $body->read(5);
    // 将主体的剩余内容作为字符串读取
    echo $remainingBytes = $body->getContents();