PHP Manual

Runtime Configuration

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

**Printer configuration options**
Name	Default	Changeable	Changelog
printer.default_printer	""	PHP_INI_ALL	Available since PHP 4.0.6. Removed in PHP 4.1.1.

For further details and definitions of the PHP_INI_* modes, see the Where a configuration setting may be set.