Since encoded_value is set depending only on whether z_value is NULL(0) or not, surely there's no need to check Z_STRVAL_PP(z_value) before using encoded_value, and it just adds stuff to the normal execution path. At this point, we know either z_value is null, or Z_STRLEN_PP(z_value) is not 0.

--- ext/standard/head.c.cvs     Sun Sep  9 12:13:27 2001
+++ ext/standard/head.c.new     Sun Sep  9 12:32:00 2001
@@ -142,7 +142,7 @@
                sprintf(cookie, "Set-Cookie: %s=deleted; expires=%s", Z_STRVAL_PP(z_name), dt);
                efree(dt);
        } else {
-               sprintf(cookie, "Set-Cookie: %s=%s", Z_STRVAL_PP(z_name), (z_value && Z_STRVAL_PP(z_value)) ? encoded_value : "");
+               sprintf(cookie, "Set-Cookie: %s=%s", Z_STRVAL_PP(z_name), z_value ? encoded_value : "");
                if (expires > 0) {
                        strcat(cookie, "; expires=");
                        dt = php_std_date(expires);

--
Paul "TBBle" Hampson