Q:

CLI SAPI based daemon, PHP app with cronjobs support

I need to build an CLI SAPI based daemon, PHP app with cronjobs support for iOS platform. We have dedicated server. 
What kind of  PHP environment to run this type of PHP applications?

A:

Check PHP CLI SAPI module whether installed
<?php
if (PHP_SAPI === 'cli')
{
   // ...
}
?> 

If not installed, then install it 
Debian Based Server
sudo apt-get install php5-cli

Redhat/CentOS Based Servers
yum install php5-cli

and make sure you are running your script in CLI mode

