How to backtrace a variable in php template
You can do it using devel module and ddebug_backtrace() api function exposed by devel..

Below is the function call stack for page.tpl.php executed using below command..

&lt;?php dpm(ddebug_backtrace());?&gt;




I believe above tpl is related to views module... $rows are generated dynamically by views module based on your views settings...