Web FrameWorks
- ThinkPHP5.1框架：https://packagist.org/packages/topthink/framework
- Laravel框架：https://packagist.org/packages/laravel/laravel
- Slim框架：https://packagist.org/packages/slim/slim
- Yii2框架：https://packagist.org/packages/yiisoft/yii2
Database
- ZF1的数据库封装，很好使用：https://packagist.org/packages/zf1/zend-db
- Mongodb数据库驱动：https://packagist.org/packages/mongodb/mongodb
- Redis数据库访问，支持PHP和HHVM：https://packagist.org/packages/predis/predis
- 另一个ORM类：https://packagist.org/packages/gabordemooij/redbean
ORM
- ORM框架：https://packagist.org/packages/vrana/notorm
- 全功能的数据访问框架：https://packagist.org/packages/illuminate/database
- 强大高效ORM库：https://packagist.org/packages/catfan/medoo
- 一个高效自由的ORM库：https://packagist.org/packages/propel/propel
Networks
- HTTP客户端很强大：https://packagist.org/packages/guzzlehttp/guzzle
- 另一个HTTP客户端：https://packagist.org/packages/rmccue/requests
- 对REST友好的HTTP客户端：https://github.com/nategood/httpful
- 基于curl的HTTP访问请求：https://github.com/php-curl-class/php-curl-class
String
- 很强大的字符串处理：https://packagist.org/packages/danielstjules/stringy
- 高效的Markdown解析库：https://packagist.org/packages/cebe/markdown
- PHP的markdown库：https://packagist.org/packages/michelf/php-markdown
- 随机字符串生成：https://packagist.org/packages/paragonie/random_compat
- 生成不重复的随机字符串：https://packagist.org/packages/hashids/hashids
- 生成UUID，支持V1,3,4,5等版本：https://packagist.org/packages/ramsey/uuid
- HTML压缩，去掉空格，行等：https://packagist.org/packages/wyrihaximus/html-compress
- Url解析类：https://packagist.org/packages/sabre/uri
- UserAgent解析类：https://packagist.org/packages/ua-parser/uap-php
- URL管理类：https://packagist.org/packages/jwage/purl
Temppate
- 高效的摸模板引擎：https://packagist.org/packages/twig/twig
- Smarty模板引擎：https://packagist.org/packages/smarty/smarty
Files
- 很强大的文件操作，支持S3等：https://packagist.org/packages/league/flysystem
- 上传类：https://packagist.org/packages/codeguy/upload
- 上传类：https://packagist.org/packages/fuelphp/upload
Caching
- 强大的Cache类：https://packagist.org/packages/doctrine/cache
- ZF的cache类：https://packagist.org/packages/zendframework/zend-cache
- laravel的cache类：https://packagist.org/packages/illuminate/cache
Image
- 图片处理类：https://packagist.org/packages/imagine/imagine
- 强大的图片处理类：https://packagist.org/packages/intervention/image
- 很好用的图片处理类：https://packagist.org/packages/kosinix/grafika
- 图片处理：https://packagist.org/packages/gregwar/image
- 二维码生成：https://packagist.org/packages/aferrandini/phpqrcode
Captcha
- 很好使用的验证码生成类：https://packagist.org/packages/gregwar/captcha
- google的验证码类：https://packagist.org/packages/google/recaptcha
GEO
- GEOIP类：https://packagist.org/packages/geoip2/geoip2
- Geo类库：https://packagist.org/packages/willdurand/geocoder
Tools
- 一些有用的函数处理：https://packagist.org/packages/fzaninotto/faker
- 一些有用的PHP函数：https://packagist.org/packages/lstrojny/functional-php
- 货币适配处理：https://packagist.org/packages/moneyphp/money
- 一些有用的函数：https://packagist.org/packages/ngfw/recipe
Date
- 很人性的时间戳格式化：https://packagist.org/packages/jimmiw/php-time-ago
- 简单的日期处理库：https://packagist.org/packages/nesbot/carbon
Secure
- 加密解密类：https://packagist.org/packages/defuse/php-encryption
- 加密解密类：https://packagist.org/packages/phpseclib/phpseclib
- 密码生成类：https://packagist.org/packages/passwordlib/passwordlib
- 很好用的邮件发送：https://packagist.org/packages/swiftmailer/swiftmailer
- 全功能的邮件发送类：https://packagist.org/packages/phpmailer/phpmailer
- 邮件地址真实性验证：https://packagist.org/packages/hbattat/verifyemail
Queue
Debug
- 很帮的调试工具：https://packagist.org/packages/tracy/tracy
- 错误调试工具：https://packagist.org/packages/filp/whoops
Variables Dump
- 很棒的var_dump：https://packagist.org/packages/leeoniya/dump-r
- 很漂亮的Dump工具：https://packagist.org/packages/digitalnature/php-ref
- symfony的Dump工具：https://packagist.org/packages/symfony/var-dumper