Can PHP Read/Write /data?

/var/www/icmts
/data
total 48
drwxrwsr-x  4 smithb  icmts  4096 Sep 20 16:53 bin
drwxrwsr-x  6 smithb  icmts  4096 Sep 28 15:01 db
drwxrwxr-x  5 weiland icmts  4096 Sep 19 22:40 gitdata
drwxrwsr-x 22 smithb  icmts  4096 Oct 30 17:18 jekyll_dev
drwxrwsr-x 22 smithb  icmts  4096 Oct 28 19:33 jekyll_source
-rw-rw-r--  1 smithb  icmts 24765 Oct  4 18:18 program2027.json.devtest