Log database errors instead of showing them.

display_errors is off unless DISPLAY_ERRORS is set in .env.

config.lib.php

@@ -39,4 +39,8 @@ function config($key, $default = NULL) {
 
   return array_key_exists($key, $values) ? $values[$key] : $default;
 }
+
+// Always log PHP errors; show them only if DISPLAY_ERRORS is set (for development)
+ini_set('log_errors', '1');
+ini_set('display_errors', (string)config('DISPLAY_ERRORS', '0'));
 ?>