is_filter        1404 ext/pcre/php_pcre.c static void preg_replace_impl(INTERNAL_FUNCTION_PARAMETERS, int is_callable_replace, int is_filter)
is_filter        1466 ext/pcre/php_pcre.c 				if (!is_filter || replace_count > old_replace_count) {
is_filter        1488 ext/pcre/php_pcre.c 			if (!is_filter || replace_count > old_replace_count) {