Can PHP Read/Write /data?

/var/www/icmts
/data
total 12
drwxrwsr-x 5 smithb  icmts 4096 Sep 17 18:00 db
drwxrwxr-x 4 weiland icmts 4096 Apr  3 17:37 gitdata
drwxrwxr-x 2 smithb  icmts 4096 Jul 27 23:00 jekyll_source