Source View: the_permalink

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: 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.

Source View

This hook occurs 2 times in this file.

Line Code
2067       * @since 3.0.0
2068       *
2069       * @param array $fields The default comment fields.
2070       */
2071      $fields = apply_filters( 'comment_form_default_fields', $fields );
2072      $defaults = array(
2073           'fields'               => $fields,
2074           'comment_field'        => '<p class="comment-form-comment"><label for="comment">' . _x( 'Comment', 'noun' ) . '</label> <textarea id="comment" name="comment" cols="45" rows="8" aria-required="true"></textarea></p>',
2075           /** This filter is documented in wp-includes/link-template.php */
2076           'must_log_in'          => '<p class="must-log-in">' . sprintf( __( 'You must be <a href="%s">logged in</a> to post a comment.' ), wp_login_url( apply_filters( 'the_permalink', get_permalink( $post_id ) ) ) ) . '</p>',
2077           /** This filter is documented in wp-includes/link-template.php */
2078           'logged_in_as'         => '<p class="logged-in-as">' . sprintf( __( 'Logged in as <a href="%1$s">%2$s</a>. <a href="%3$s" title="Log out of this account">Log out?</a>' ), get_edit_user_link(), $user_identity, wp_logout_url( apply_filters( 'the_permalink', get_permalink( $post_id ) ) ) ) . '</p>',
2079           'comment_notes_before' => '<p class="comment-notes">' . __( 'Your email address will not be published.' ) . ( $req ? $required_text : '' ) . '</p>',
2080           'comment_notes_after'  => '<p class="form-allowed-tags">' . sprintf( __( 'You may use these <abbr title="HyperText Markup Language">HTML</abbr> tags and attributes: %s' ), ' <code>' . allowed_tags() . '</code>' ) . '</p>',
2081           'id_form'              => 'commentform',
2082           'id_submit'            => 'submit',
2083           'title_reply'          => __( 'Leave a Reply' ),
2084           'title_reply_to'       => __( 'Leave a Reply to %s' ),
2085           'cancel_reply_link'    => __( 'Cancel reply' ),
2086           'label_submit'         => __( 'Post Comment' ),
2087           'format'               => 'xhtml',