PHP extensions

• yar

  Yar(Yet Another RPC framework) is a lightweight PHP RPC framework that supports parallel calls
  Learning resource https://www.laruence.com/2020/03/16/5578.html
  

• yac

  Lock-free shared memory Cache
  
  Learning resource https://www.laruence.com/2013/03/18/2846.html
  

• yconf

   High-performance configuration management extension
  
  Learning resource https://www.laruence.com/2015/06/12/3051.html
  

• taint

   Detect XSS/SQL/Shell injection vulnerabilities
  
  Learning resource https://www.laruence.com/2012/02/14/2544.html
  

• igbinary

  An alternative to php's serializer
  

• solr

     Full-text search engine
  

• xhprof

     Performance testing tool