Index: Mk/Uses/php.mk
===================================================================
--- Mk/Uses/php.mk
+++ Mk/Uses/php.mk
@@ -420,3 +420,40 @@
 .    endfor
 .  endif
 .endif
+
+# Basic Idea:
+# - If PHP_FLAVORS are defined
+# -- check if used FLAVOR is allowed
+# -- set FLAVORS to PHP_FLAVORS
+# - Set PHP_VER to FLAVOR
+# - Set PKGNAMEPREFIX to php$FLAVOR-
+# - Set IGNORE_WITH_PHP to everyting else not matching FLAVOR
+
+ALLOWED_PHP_FLAVORS=56 70 71 72
+
+.if empty(FLAVORS) && defined(PHP_FLAVORS)
+
+  # check if set FLAVOR is allowed
+  rc=0
+.   for allowed_flavor in ${ALLOWED_PHP_FLAVORS}
+.     if ${FLAVOR} == ${allowed_flavor}
+        rc=1
+.     endif
+.   endfor
+
+.  if ${rc} == 0
+.    error "Flavor $FLAVOR is not in list of allowed flavors $ALLOWED_PHP_FLAVORS"
+.  endif
+
+  FLAVORS=${PHP_FLAVORS}
+  PKGNAMEPREFIX= "php${FLAVOR}-"
+  PHP_VER=	${FLAVOR}
+
+. for allowed_flavor in ${ALLOWED_PHP_FLAVORS}
+.   if ${FLAVOR} != ${allowed_flavor}
+        IGNORE_WITH_PHP+=${allowed_flavor}
+.   endif
+. endfor
+
+.endif
+