Description
This action hook comes before the plugin goes through its initial setup. With the exception of a few constants, all of the plugin setup comes *after* this action.
This hook can be used to load pluggable functions before the plugin loads, or to handle any actions that need to happen before the plugin.
Parameters
This action is not passed any parameters.
Changelog
Introduced in version 2.9.0.
Source
wpmem_pre_init is located in wp-members.php