Runtime Configuration

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

Igbinary Configure Options

Name	Default	Changeable	Changelog
igbinary.compact_strings	1	INI_ALL

Session Configuration Options Affecting Igbinary Behavior

Name	Default	Changeable	Changelog
session.save_handler	"files"	INI_ALL

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

Here's a short explanation of the configuration directives.

igbinary.compact_stringsbool

Enable or disable compacting of duplicate strings. The default is On.

session.save_handlerstring

Igbinary is used as session handler by setting this value to igbinary.