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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 1257 | * Filter the comment author's email cookie before it is set. |
| 1258 | * |
| 1259 | * When this filter hook is evaluated in wp_filter_comment(), |
| 1260 | * the comment author's email string is passed. |
| 1261 | * |
| 1262 | * @since 1.5.0 |
| 1263 | * |
| 1264 | * @param string $author_email_cookie The comment author email cookie. |
| 1265 | */ |
| 1266 | $comment_author_email = apply_filters( 'pre_comment_author_email', $_COOKIE['comment_author_email_' . COOKIEHASH] ); |
| 1267 | $comment_author_email = wp_unslash($comment_author_email); |
| 1268 | $comment_author_email = esc_attr($comment_author_email); |
| 1269 | $_COOKIE['comment_author_email_'.COOKIEHASH] = $comment_author_email; |
| 1270 | } |
| 1271 | |
| 1272 | if ( isset( $_COOKIE['comment_author_url_' . COOKIEHASH] ) ) { |
| 1273 | /** |
| 1274 | * Filter the comment author's URL cookie before it is set. |
| 1275 | * |
| Line | Code |
| 2206 | * |
| 2207 | * @since 1.5.0 |
| 2208 | * |
| 2209 | * @param int $comment_author_ip The comment author's IP. |
| 2210 | */ |
| 2211 | $commentdata['comment_author_IP'] = apply_filters( 'pre_comment_user_ip', $commentdata['comment_author_IP'] ); |
| 2212 | /** This filter is documented in wp-includes/comment.php */ |
| 2213 | $commentdata['comment_author_url'] = apply_filters( 'pre_comment_author_url', $commentdata['comment_author_url'] ); |
| 2214 | /** This filter is documented in wp-includes/comment.php */ |
| 2215 | $commentdata['comment_author_email'] = apply_filters( 'pre_comment_author_email', $commentdata['comment_author_email'] ); |
| 2216 | $commentdata['filtered'] = true; |
| 2217 | return $commentdata; |
| 2218 | } |
| 2219 | |
| 2220 | /** |
| 2221 | * Whether a comment should be blocked because of comment flood. |
| 2222 | * |
| 2223 | * @since 2.1.0 |
| 2224 | * |