Issue #2932777 by mondrake, borisson_, alexpott, daffie: Risky count() in SQLite Statement

core/lib/Drupal/Core/Database/Driver/sqlite/Statement.php

@@ -27,7 +27,7 @@ class Statement extends StatementPrefetch implements StatementInterface {
    * See http://bugs.php.net/bug.php?id=45259 for more details.
    */
   protected function getStatement($query, &$args = []) {
-    if (count($args)) {
+    if (is_array($args) && !empty($args)) {
       // Check if $args is a simple numeric array.
       if (range(0, count($args) - 1) === array_keys($args)) {
         // In that case, we have unnamed placeholders.

core/lib/Drupal/Core/Database/StatementInterface.php

@@ -44,7 +44,7 @@ interface StatementInterface extends \Traversable {
    *
    * @param $args
    *   An array of values with as many elements as there are bound parameters in
-   *   the SQL statement being executed.
+   *   the SQL statement being executed. This can be NULL.
    * @param $options
    *   An array of options for this query.
    *

core/lib/Drupal/Core/Database/StatementPrefetch.php

@@ -214,8 +214,8 @@ class StatementPrefetch implements \Iterator, StatementInterface {
    *
    * @param $query
    *   The query.
-   * @param array $args
-   *   An array of arguments.
+   * @param array|null $args
+   *   An array of arguments. This can be NULL.
    * @return \PDOStatement
    *   A PDOStatement object.
    */