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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
1635 |
|
1636 | $email = ''; |
1637 | if ( is_numeric($id_or_email) ) { |
1638 | $id = (int) $id_or_email; |
1639 | $user = get_userdata($id); |
1640 | if ( $user ) |
1641 | $email = $user->user_email; |
1642 | } elseif ( is_object($id_or_email) ) { |
1643 | // No avatar for pingbacks or trackbacks |
1644 | $allowed_comment_types = apply_filters( 'get_avatar_comment_types', array( 'comment' ) ); |
1645 | if ( ! empty( $id_or_email->comment_type ) && ! in_array( $id_or_email->comment_type, (array) $allowed_comment_types ) ) |
1646 | return false; |
1647 |
|
1648 | if ( !empty($id_or_email->user_id) ) { |
1649 | $id = (int) $id_or_email->user_id; |
1650 | $user = get_userdata($id); |
1651 | if ( $user) |
1652 | $email = $user->user_email; |
1653 | } elseif ( !empty($id_or_email->comment_author_email) ) { |