Is it possible to include a PHP Script as content of a tab? How?
There are different ways to add tab content.
If you use external php file, you may use iframes of “ajax-html” loading modes:
dhtmlxTabbar/samples/01_initialization/06_loading_by_iframes.html
dhtmlxTabbar/samples/01_initialization/05_loading_by_ajax.html
Or you may use setContent or setContentHTML
dhtmlxTabbar/samples/01_initialization/01_init_from_script.html