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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 |
|---|---|
| 198 | } |
| 199 | if ( ! empty( $messages ) ) { |
| 200 | /** |
| 201 | * Filter instructional messages displayed above the login form. |
| 202 | * |
| 203 | * @since 2.5.0 |
| 204 | * |
| 205 | * @param string $messages Login messages. |
| 206 | */ |
| 207 | echo '<p class="message">' . apply_filters( 'login_messages', $messages ) . "</p>\n"; |
| 208 | } |
| 209 | } |
| 210 | } // End of login_header() |
| 211 | |
| 212 | /** |
| 213 | * Outputs the footer for the login page. |
| 214 | * |
| 215 | * @param string $input_id Which input to auto-focus |
| 216 | */ |