codeigniter not working after installing zend Framework
It's about your apache configuration ( i assume you use apache cause it's in digital ocean documentation )
<VirtualHost *:80> ServerName localhost DocumentRoot /var/www/ZendApp/publicwith this configuration, your localhost domain is only working for your zend project. Change it's ServerName to another domain and add it to your /etc/hosts file like
/etc/apache2/sites-enabled/000-default
<VirtualHost *:80> ServerName zendproject.dev DocumentRoot /var/www/ZendApp/public/etc/hosts
127.0.0.1 zendproject.devAnd restart your apache server. Then you can use zendproject.dev domain for your zend app and localhost for your default localhost directory. ( and i assume you have another apache vhosts conf file for localhost )