1--TEST-- 2Bug #67167: filter_var(null,FILTER_VALIDATE_BOOLEAN,FILTER_NULL_ON_FAILURE) returns null 3--SKIPIF-- 4<?php if (!extension_loaded("filter")) die("skip"); ?> 5--FILE-- 6<?php 7var_dump(filter_var( 8 null, 9 FILTER_VALIDATE_BOOLEAN, 10 FILTER_NULL_ON_FAILURE 11)); 12--XFAIL-- 13Requires php_zval_filter to not use convert_to_string for all filters. 14--EXPECTF-- 15NULL 16