Change the SQLLogger interface signature

lib/Doctrine/DBAL/Logging/DebugStack.php

@@ -32,7 +32,7 @@ class DebugStack implements SQLLogger
     /**
      * {@inheritdoc}
      */
-    public function startQuery($sql, ?array $params = null, ?array $types = null)
+    public function startQuery(string $sql, array $params = [], array $types = []) : void
     {
         if (! $this->enabled) {
             return;
@@ -45,7 +45,7 @@ class DebugStack implements SQLLogger
     /**
      * {@inheritdoc}
      */
-    public function stopQuery()
+    public function stopQuery() : void
     {
         if (! $this->enabled) {
             return;

lib/Doctrine/DBAL/Logging/EchoSQLLogger.php

@@ -13,7 +13,7 @@ class EchoSQLLogger implements SQLLogger
     /**
      * {@inheritdoc}
      */
-    public function startQuery($sql, ?array $params = null, ?array $types = null)
+    public function startQuery(string $sql, array $params = [], array $types = []) : void
     {
         echo $sql . PHP_EOL;
 
@@ -31,7 +31,7 @@ class EchoSQLLogger implements SQLLogger
     /**
      * {@inheritdoc}
      */
-    public function stopQuery()
+    public function stopQuery() : void
     {
     }
 }

lib/Doctrine/DBAL/Logging/LoggerChain.php

@@ -22,10 +22,8 @@ class LoggerChain implements SQLLogger
      * Adds a logger in the chain.
      *
      * @deprecated Inject list of loggers via constructor instead
-     *
-     * @return void
      */
-    public function addLogger(SQLLogger $logger)
+    public function addLogger(SQLLogger $logger) : void
     {
         $this->loggers[] = $logger;
     }
@@ -33,7 +31,7 @@ class LoggerChain implements SQLLogger
     /**
      * {@inheritdoc}
      */
-    public function startQuery($sql, ?array $params = null, ?array $types = null)
+    public function startQuery(string $sql, array $params = [], array $types = []) : void
     {
         foreach ($this->loggers as $logger) {
             $logger->startQuery($sql, $params, $types);
@@ -43,7 +41,7 @@ class LoggerChain implements SQLLogger
     /**
      * {@inheritdoc}
      */
-    public function stopQuery()
+    public function stopQuery() : void
     {
         foreach ($this->loggers as $logger) {
             $logger->stopQuery();

lib/Doctrine/DBAL/Logging/NullLogger.php

@@ -10,14 +10,14 @@ final class NullLogger implements SQLLogger
     /**
      * {@inheritdoc}
      */
-    public function startQuery($sql, ?array $params = null, ?array $types = null)
+    public function startQuery(string $sql, ?array $params = [], ?array $types = []) : void
     {
     }
 
     /**
      * {@inheritdoc}
      */
-    public function stopQuery()
+    public function stopQuery() : void
     {
     }
 }

lib/Doctrine/DBAL/Logging/SQLLogger.php

@@ -10,18 +10,14 @@ interface SQLLogger
     /**
      * Logs a SQL statement somewhere.
      *
-     * @param string              $sql    The SQL to be executed.
-     * @param mixed[]|null        $params The SQL parameters.
-     * @param int[]|string[]|null $types  The SQL parameter types.
-     *
-     * @return void
+     * @param string         $sql    The SQL to be executed.
+     * @param mixed[]        $params The SQL parameters.
+     * @param int[]|string[] $types  The SQL parameter types.
      */
-    public function startQuery($sql, ?array $params = null, ?array $types = null);
+    public function startQuery(string $sql, array $params = [], array $types = []) : void;
 
     /**
      * Marks the last started query as stopped. This can be used for timing of queries.
-     *
-     * @return void
      */
-    public function stopQuery();
+    public function stopQuery() : void;
 }

tests/Doctrine/Tests/DBAL/Logging/DebugStackTest.php

@@ -27,8 +27,8 @@ class DebugStackTest extends DbalTestCase
             [
                 1 => [
                     'sql' => 'SELECT column FROM table',
-                    'params' => null,
-                    'types' => null,
+                    'params' => [],
+                    'types' => [],
                     'executionMS' => 0,
                 ],
             ],