PHP Manual

Runtime Configuration

The behaviour of these functions is affected by settings in php.ini.

Mysqlnd_uh Configure Options
Name Default Changeable Changelog
mysqlnd_uh.enable 1 PHP_INI_SYSTEM
mysqlnd_uh.report_wrong_types 1 PHP_INI_ALL

Here's a short explanation of the configuration directives.

mysqlnd_uh.enable integer

Enables or disables the plugin. If set to disabled, the extension will not allow users to plug into mysqlnd to hook mysqlnd calls.

mysqlnd_uh.report_wrong_types integer

Whether to report wrong return value types of user hooks as E_WARNING level errors. This is recommended for detecting errors.

PHP Manual