is_filter        1442 ext/pcre/php_pcre.c static int preg_replace_impl(zval *return_value, zval *regex, zval *replace, zval *subject, zend_long limit_val, int is_callable_replace, int is_filter)
is_filter        1467 ext/pcre/php_pcre.c 				if (!is_filter || replace_count > old_replace_count) {
is_filter        1486 ext/pcre/php_pcre.c 			if (!is_filter || replace_count > old_replace_count) {