|wp-includes/load.php: wp_installing()|| |
Check or set whether WordPress is in “installation” mode.
|wp-includes/load.php: is_multisite()|| |
If Multisite is enabled.
|wp-includes/option.php: delete_option()|| |
Removes option by name. Prevents removal of protected WordPress options.
|wp-includes/rewrite.php: flush_rewrite_rules()|| |
Remove rewrite rules and then recreate rewrite rules.
|wp-includes/ms-blogs.php: ms_is_switched()|| |
Determines if switch_to_blog() is in effect