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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 |
|---|---|
| 22 | if ( empty($comment_author) ) { |
| 23 | $comments = $wpdb->get_results("SELECT * FROM $wpdb->comments WHERE comment_post_ID = '$post->ID' AND comment_approved = '1' ORDER BY comment_date"); |
| 24 | } else { |
| 25 | $author_db = $wpdb->escape($comment_author); |
| 26 | $email_db = $wpdb->escape($comment_author_email); |
| 27 | $comments = $wpdb->get_results("SELECT * FROM $wpdb->comments WHERE comment_post_ID = '$post->ID' AND ( comment_approved = '1' OR ( comment_author = '$author_db' AND comment_author_email = '$email_db' AND comment_approved = '0' ) ) ORDER BY comment_date"); |
| 28 | } |
| 29 | |
| 30 | define('COMMENTS_TEMPLATE', true); |
| 31 | $include = apply_filters('comments_template', TEMPLATEPATH . $file ); |
| 32 | if ( file_exists( $include ) ) |
| 33 | require( $include ); |
| 34 | else |
| 35 | require( ABSPATH . 'wp-content/themes/default/comments.php'); |
| 36 | } |
| 37 | |
| 38 | function wp_new_comment( $commentdata ) { |
| 39 | $commentdata = apply_filters('preprocess_comment', $commentdata); |
| 40 | |