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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 |
|---|---|
| 1163 | * @return string Hidden input HTML for replying to comments |
| 1164 | */ |
| 1165 | function get_comment_id_fields( $id = 0 ) { |
| 1166 | if ( empty( $id ) ) |
| 1167 | $id = get_the_ID(); |
| 1168 | |
| 1169 | $replytoid = isset($_GET['replytocom']) ? (int) $_GET['replytocom'] : 0; |
| 1170 | $result = "<input type='hidden' name='comment_post_ID' value='$id' id='comment_post_ID' />\n"; |
| 1171 | $result .= "<input type='hidden' name='comment_parent' id='comment_parent' value='$replytoid' />\n"; |
| 1172 | return apply_filters('comment_id_fields', $result, $id, $replytoid); |
| 1173 | } |
| 1174 | |
| 1175 | /** |
| 1176 | * Output hidden input HTML for replying to comments. |
| 1177 | * |
| 1178 | * @since 2.7.0 |
| 1179 | * @see get_comment_id_fields() Echoes result |
| 1180 | */ |
| 1181 | function comment_id_fields( $id = 0 ) { |