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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 |
---|---|
1641 | $args = wp_parse_args( $args, apply_filters( 'comment_form_defaults', $defaults ) ); |
1642 |
|
1643 | ?> |
1644 | <?php if ( comments_open( $post_id ) ) : ?> |
1645 | <?php do_action( 'comment_form_before' ); ?> |
1646 | <div id="respond" class="comment-respond"> |
1647 | <h3 id="reply-title" class="comment-reply-title"><?php comment_form_title( $args['title_reply'], $args['title_reply_to'] ); ?> <small><?php cancel_comment_reply_link( $args['cancel_reply_link'] ); ?></small></h3> |
1648 | <?php if ( get_option( 'comment_registration' ) && !is_user_logged_in() ) : ?> |
1649 | <?php echo $args['must_log_in']; ?> |
1650 | <?php do_action( 'comment_form_must_log_in_after' ); ?> |
1651 | <?php else : ?> |
1652 | <form action="<?php echo site_url( '/wp-comments-post.php' ); ?>" method="post" id="<?php echo esc_attr( $args['id_form'] ); ?>" class="comment-form"<?php echo $html5 ? ' novalidate' : ''; ?>> |
1653 | <?php do_action( 'comment_form_top' ); ?> |
1654 | <?php if ( is_user_logged_in() ) : ?> |
1655 | <?php echo apply_filters( 'comment_form_logged_in', $args['logged_in_as'], $commenter, $user_identity ); ?> |
1656 | <?php do_action( 'comment_form_logged_in_after', $commenter, $user_identity ); ?> |
1657 | <?php else : ?> |
1658 | <?php echo $args['comment_notes_before']; ?> |
1659 | <?php |