* * Fixed SkyWalking Cross Process Propagation Headers Protocol V2 Bugs

* * opt digits check

* Update components.h

* Update skywalking.c
Co-authored-by: Nxudianyang <xudianyang@g7.com.cn>
Co-authored-by: N何延龙 <yanlong.hee@gmail.com>

Added memcache collection and skywalking 8.0 support

* Add files via upload

添加centos7 Systemd启动脚本

* Create agent_install_doc

* Update agent_install_doc

* Update and rename sw-php-agent.service to sw-php-agent.service.example

* Update agent_install_doc

* Update install-agent.md

* Update install-agent.md

* Update install-agent.md

* Update install-agent.md

* Update install-agent.md

* Update install-agent.md

* Delete agent_install_doc

* Update sw-php-agent.service.example

* Update install-agent.md

* Update install-agent.md

* Add files via upload

添加sw+php-agentDcoker-compose文件，SwUi端口：9001 phpWeb端口：8080

* Update docker-compose.yml

* Update install-agent.md

* Update sw-php-agent.service.example
Co-authored-by: N何延龙 <yanlong.hee@gmail.com>

fix bugs

* Support v8

* Support memcached component

* Support key :
set|setbykey|setmulti|setmultibykey|add|addbykey|replace|replacebykey|append|appendbykey|prepend|prependbykey|cas|casbykey|get|getbykey|getmulti|getmultibykey|getallkeys|delete|deletebykey|deletemulti|deletemultibykey|increment|incrementbykey|decrement|decrementbykey|getstats|ispersistent|ispristine|flush|flushbuffers|getdelayed|getdelayedbykey|fetch|fetchall|addserver|addservers|getoption|getresultcode|setoption|setoptions|getserverbykey|getserverlist|resetserverlist|getversion|quit|setsaslauthdata|touch|touchbykey

fix typo

Build Dockerfile of alpine linux

Update Dockerfile

Update CI file

Update CI file

Update CI file

Add Dockerfile support to e2e test

Add Dockerfile

fix #86

fix #195 #196 #194