$userId = null;
  echo   $userId ? :'WELL NULL';
Echo will be => WELL NULL

Eager loading Definition

There are three levels:

service-oriented architecture (SOA)

service-oriented architecture (SOA

Multitier architecture

Multitier architecture

apache 2 virtual host configuration


create a within site-available folder a conf file for new virtual host as follow


Avoid Github to enter username password

A common mistake is cloning using the default (HTTPS) instead of SSH. You can correct this by going to your repository, clicking the ssh button left to the URL field and updating the URL of your origin remote like this:


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