Fix filter_(var|input)_array default

Author: nikic

ext/filter/filter.stub.php

@@ -21,13 +21,13 @@ function filter_var($variable, int $filter = FILTER_DEFAULT, $options = null) {}
  * @param mixed $options
  * @return mixed
  */
-function filter_input_array(int $type, $options = null, bool $add_empty = true) {}
+function filter_input_array(int $type, $options = FILTER_DEFAULT, bool $add_empty = true) {}
 
 /**
  * @param mixed $options
  * @return mixed
  */
-function filter_var_array(array $data, $options = null, bool $add_empty = true) {}
+function filter_var_array(array $data, $options = FILTER_DEFAULT, bool $add_empty = true) {}
 
 function filter_list(): array {}
 

ext/filter/filter_arginfo.h

@@ -20,13 +20,13 @@ ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_filter_input_array, 0, 0, 1)
 	ZEND_ARG_TYPE_INFO(0, type, IS_LONG, 0)
-	ZEND_ARG_INFO_WITH_DEFAULT_VALUE(0, options, "null")
+	ZEND_ARG_INFO_WITH_DEFAULT_VALUE(0, options, "FILTER_DEFAULT")
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, add_empty, _IS_BOOL, 0, "true")
 ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_filter_var_array, 0, 0, 1)
 	ZEND_ARG_TYPE_INFO(0, data, IS_ARRAY, 0)
-	ZEND_ARG_INFO_WITH_DEFAULT_VALUE(0, options, "null")
+	ZEND_ARG_INFO_WITH_DEFAULT_VALUE(0, options, "FILTER_DEFAULT")
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, add_empty, _IS_BOOL, 0, "true")
 ZEND_END_ARG_INFO()