pre_get_posts
Action Hook: Fires after the query variable object is created, but before the actual query is run.
Source: wp-includes/class-wp-query.php:1879
in_the_loop()
Function: Determines whether the caller is in the Loop.
Source: wp-includes/query.php:964
is_preview()
Function: Determines whether the query is for a post or page preview.
Source: wp-includes/query.php:632
is_attachment()
Function: Determines whether the query is for an existing attachment page.
Source: wp-includes/query.php:213
wp_new_user_notification()
Function: Emails login credentials to a newly-registered user.
Source: wp-includes/pluggable.php:2125
is_user_logged_in()
Function: Determines whether the current visitor is a logged in user.
Source: wp-includes/pluggable.php:1173
wp_update_comment()
Function: Updates an existing comment in the database.
Source: wp-includes/comment.php:2487
pre_ping
Action Hook: Fires just before pinging back links found in a post.
Source: wp-includes/comment.php:3115
wp_insert_comment()
Function: Inserts a comment into the database.
Source: wp-includes/comment.php:2000
wp_filter_comment()
Function: Filters and sanitizes comment data.
Source: wp-includes/comment.php:2095