PHP: fix generating variable tags for rvalues

Only generate tags for variable declarations without assignments inside
classes and interfaces not to get fooled by rvalues.

This prevents generation of a "$bar" tag for something like:

	$foo = $bar;

while still generating "$bar" tag for:

	class Foo {
		var $bar;
	}

php.c

@@ -902,7 +902,15 @@ static boolean parseVariable (tokenInfo *const token)
 		}
 	}
 	else if (token->type == TOKEN_SEMICOLON)
-		makeSimplePhpTag (name, K_VARIABLE, access);
+	{
+		/* generate tags for variable declarations in classes
+		 * 	class Foo {
+		 * 		protected $foo;
+		 * 	}
+		 * but don't get fooled by stuff like $foo = $bar; */
+		if (token->parentKind == K_CLASS || token->parentKind == K_INTERFACE)
+			makeSimplePhpTag (name, K_VARIABLE, access);
+	}
 	else
 		readNext = FALSE;