- Fixed ip2long() behavior if an invalid IP address was passed to the

function. This makes it possible to distingiush between "255.255.255.255"
  and a wrong one.

NEWS

@@ -8,6 +8,8 @@ PHP                                                                        NEWS
 - Changed class type hints for function parameters to not allow the passing of
   NULL values. (Andi)
 - Changed tidy_node to tidyNode and removed tidy_exception. (John)
+- Fixed ip2long() to return FALSE if an IP address passed to this function
+  is not valid. (Derick)
 - Fixed memory leak in memory manager. (Andi)
 - Fixed problem with exceptions returning from include(). (Dmitry)
 - Fixed bug #28311 (Transparency detection code is off by 1).

ext/standard/basic_functions.c

@@ -1247,7 +1247,7 @@ PHP_FUNCTION(ip2long)
 	convert_to_string_ex(str);
 
 	if (Z_STRLEN_PP(str) == 0 || (ip = inet_addr(Z_STRVAL_PP(str))) == INADDR_NONE) {
-		RETURN_LONG(-1);
+		RETURN_FALSE;
 	}
 
 	RETURN_LONG(ntohl(ip));