diff --git a/php/src/db/Capacitor.php b/php/src/db/Capacitor.php
index 949ffee..32a278b 100644
--- a/php/src/db/Capacitor.php
+++ b/php/src/db/Capacitor.php
@@ -335,7 +335,7 @@ abstract class Capacitor {
    * @return int 1 si l'objet a été chargé ou mis à jour, 0 s'il existait
    * déjà à l'identique dans le canal
    */
-  function charge(CapacitorChannel $channel, $item, $func, ?array $args, ?array &$row=null): int {
+  function charge(CapacitorChannel $channel, $item, $func=null, ?array $args=null, ?array &$row=null): int {
     $this->create($channel);
     $tableName = $channel->getTableName();
     $db = $this->db();
@@ -588,7 +588,7 @@ abstract class Capacitor {
    * @param int $nbUpdated reçoit le nombre de lignes mises à jour
    * @return int le nombre de lignes parcourues
    */
-  function each(CapacitorChannel $channel, $filter, $func, ?array $args, ?array $mergeQuery=null, ?int &$nbUpdated=null): int {
+  function each(CapacitorChannel $channel, $filter, $func=null, ?array $args=null, ?array $mergeQuery=null, ?int &$nbUpdated=null): int {
     $this->create($channel);
     if ($func === null) $func = CapacitorChannel::onEach;
     $onEach = func::with($func)->bind($channel);
@@ -654,7 +654,7 @@ abstract class Capacitor {
    *
    * @return int le nombre de lignes parcourues
    */
-  function delete(CapacitorChannel $channel, $filter, $func, ?array $args): int {
+  function delete(CapacitorChannel $channel, $filter, $func=null, ?array $args=null): int {
     $this->create($channel);
     if ($func === null) $func = CapacitorChannel::onDelete;
     $onDelete = func::with($func)->bind($channel);
diff --git a/php/tests/db/sqlite/SqliteStorageTest.php b/php/tests/db/sqlite/SqliteCapacitorTest.php
similarity index 90%
rename from php/tests/db/sqlite/SqliteStorageTest.php
rename to php/tests/db/sqlite/SqliteCapacitorTest.php
index 7e6b071..9e6404b 100644
--- a/php/tests/db/sqlite/SqliteStorageTest.php
+++ b/php/tests/db/sqlite/SqliteCapacitorTest.php
@@ -6,49 +6,50 @@ use nulib\cl;
 use nulib\db\Capacitor;
 use nulib\db\CapacitorChannel;
 
-class SqliteStorageTest extends TestCase {
+class SqliteCapacitorTest extends TestCase {
   static function Txx(...$values): void {
     foreach ($values as $value) {
       var_export($value);
     }
   }
 
-  function _testChargeStrings(SqliteCapacitor $storage, ?string $channel) {
-    $storage->reset($channel);
-    $storage->charge($channel, "first");
-    $storage->charge($channel, "second");
-    $storage->charge($channel, "third");
-    $items = cl::all($storage->discharge($channel, false));
+  function _testChargeStrings(SqliteCapacitor $capacitor, CapacitorChannel $channel) {
+    $capacitor->reset($channel);
+    $capacitor->charge($channel, "first");
+    $capacitor->charge($channel, "second");
+    $capacitor->charge($channel, "third");
+    $items = cl::all($capacitor->discharge($channel, false));
     self::assertSame(["first", "second", "third"], $items);
   }
 
-  function _testChargeArrays(SqliteCapacitor $storage, ?string $channel) {
-    $storage->reset($channel);
-    $storage->charge($channel, ["id" => 10, "name" => "first"]);
-    $storage->charge($channel, ["name" => "second", "id" => 20]);
-    $storage->charge($channel, ["name" => "third", "id" => "30"]);
+  function _testChargeArrays(SqliteCapacitor $capacitor, CapacitorChannel $channel) {
+    $capacitor->reset($channel);
+    $capacitor->charge($channel, ["id" => 10, "name" => "first"]);
+    $capacitor->charge($channel, ["name" => "second", "id" => 20]);
+    $capacitor->charge($channel, ["name" => "third", "id" => "30"]);
   }
 
   function testChargeStrings() {
-    $storage = new SqliteCapacitor(__DIR__.'/capacitor.db');
-    $this->_testChargeStrings($storage, null);
-    $storage->close();
+    $capacitor = new SqliteCapacitor(__DIR__.'/capacitor.db');
+    $channel = new CapacitorChannel();
+    $this->_testChargeStrings($capacitor, $channel);
+    $capacitor->close();
   }
 
   function testChargeArrays() {
-    $storage = new SqliteCapacitor(__DIR__.'/capacitor.db');
-    $storage->addChannel(new class extends CapacitorChannel {
+    $capacitor = new SqliteCapacitor(__DIR__.'/capacitor.db');
+    $channel = new class extends CapacitorChannel {
       const NAME = "arrays";
       const COLUMN_DEFINITIONS = ["id" => "integer"];
 
       function getItemValues($item): ?array {
         return ["id" => $item["id"] ?? null];
       }
-    });
+    };
 
-    $this->_testChargeStrings($storage, "strings");
-    $this->_testChargeArrays($storage, "arrays");
-    $storage->close();
+    $this->_testChargeStrings($capacitor, "strings");
+    $this->_testChargeArrays($capacitor, "arrays");
+    $capacitor->close();
   }
 
   function testEach() {