Bug #76366 [Ver->Csd]: References in sub-array for filtering breaks the filter

Edit report at https://bugs.php.net/bug.php?id=76366&edit=1 ID: 76366 Updated by: nikic@php.net Reported by: dirk dot gerigk at atraveo dot com Summary: References in sub-array for filtering breaks the filter -Status: Verified +Status: Closed Type: Bug Package: Filter related Operating System: Ubuntu PHP Version: 7.0Git-2018-05-22 (snap) Block user comment: N Private report: N New Comment: Automatic comment on behalf of gao_zihang@hotmail.com Revision: http://git.php.net/?p=php-src.git;a=commit;h=47fb17b108b401d8dbb5f1b94ec99ea0d020288a Log: Fixed bug #76366 (references in sub-array for filtering breaks the filter) Previous Comments: ------------------------------------------------------------------------ [2018-05-23 10:06:00] cmb@php.net Confirmed: <https://3v4l.org/83gXR> ------------------------------------------------------------------------ [2018-05-22 14:03:51] dirk dot gerigk at atraveo dot com Description: ------------ When using an array for filter variables and one sub-array is (or has) an reference the filter will not filter. This happens in all versions PHP >= 7. In PHP 5.6 it works correct. It takes me a long time to figure out, that the reference in the array produces the wrong behavior. If you var_dump $args before using it all seems fine. Test script: --------------- #array to filter $data = ['foo' => 6]; #filter args $args = ['foo'=> ['filter' => FILTER_VALIDATE_INT,'flags' => FILTER_FORCE_ARRAY]]; $args['foo']['options']=[]; #create reference $options = &$args['foo']['options']; #set options $options['min_range']=1; $options['max_range']=5; #show the filter result print_r(filter_var_array($data,$args)); Expected result: ---------------- Array ( [foo] => Array ( [0] => ) ) Actual result: -------------- Array ( [foo] => Array ( [0] => 6 ) ) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76366&edit=1