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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 |
|---|---|
| 254 | |
| 255 | if ( ! empty( $messages ) ) { |
| 256 | /** |
| 257 | * Filters instructional messages displayed above the login form. |
| 258 | * |
| 259 | * @since 2.5.0 |
| 260 | * |
| 261 | * @param string $messages Login messages. |
| 262 | */ |
| 263 | echo '<p class="message">' . apply_filters( 'login_messages', $messages ) . "</p>\n"; |
| 264 | } |
| 265 | } |
| 266 | } // End of login_header(). |
| 267 | |
| 268 | /** |
| 269 | * Outputs the footer for the login page. |
| 270 | * |
| 271 | * @since 3.1.0 |
| 272 | * |