Config: add traces in ini_set()

src/Config.php

@@ -236,8 +236,12 @@ Class Config {
    * @return void
    */
   public static function ini_set($option, $value) {
+    Log :: trace('Set PHP INI option "%s" to "%s"', $option, $value);
     if (ini_set($option, $value) === false)
-      Log::warning('Fail to set INI options "%s" to "%s"', $option, $value);
+      Log::warning('Fail to set PHP INI option "%s" to "%s"', $option, $value);
+    Log :: trace(
+      'PHP INI option "%s" after setting it to "%s": "%s"',
+      $option, $value, vardump(ini_get($option)));
   }
 
 }

src/Db.php

@@ -103,6 +103,16 @@ class Db {
     Log :: debug($msg);
   }
 
+  /**
+   * Set autocommit (only available on OCI, Firebird or MySQL connection)
+   * @param bool $value
+   * @see https://www.php.net/manual/en/pdo.setattribute.php
+   * @return void
+   */
+  public function set_autocommit($value) {
+    $this -> pdo -> setAttribute(PDO::ATTR_AUTOCOMMIT, $value);
+  }
+
   /*
    * Handle date/datetime format
    */