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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 |
|---|---|
| 1595 | |
| 1596 | $email = ''; |
| 1597 | if ( is_numeric($id_or_email) ) { |
| 1598 | $id = (int) $id_or_email; |
| 1599 | $user = get_userdata($id); |
| 1600 | if ( $user ) |
| 1601 | $email = $user->user_email; |
| 1602 | } elseif ( is_object($id_or_email) ) { |
| 1603 | // No avatar for pingbacks or trackbacks |
| 1604 | $allowed_comment_types = apply_filters( 'get_avatar_comment_types', array( 'comment' ) ); |
| 1605 | if ( ! empty( $id_or_email->comment_type ) && ! in_array( $id_or_email->comment_type, (array) $allowed_comment_types ) ) |
| 1606 | return false; |
| 1607 | |
| 1608 | if ( !empty($id_or_email->user_id) ) { |
| 1609 | $id = (int) $id_or_email->user_id; |
| 1610 | $user = get_userdata($id); |
| 1611 | if ( $user) |
| 1612 | $email = $user->user_email; |
| 1613 | } elseif ( !empty($id_or_email->comment_author_email) ) { |