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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 |
|---|---|
| 271 | } |
| 272 | |
| 273 | /** |
| 274 | * Filters the error messages displayed above the login form. |
| 275 | * |
| 276 | * @since 2.1.0 |
| 277 | * |
| 278 | * @param string $errors Login error messages. |
| 279 | */ |
| 280 | $errors = apply_filters( 'login_errors', $errors ); |
| 281 | |
| 282 | wp_admin_notice( |
| 283 | $errors, |
| 284 | array( |
| 285 | 'type' => 'error', |
| 286 | 'id' => 'login_error', |
| 287 | 'paragraph_wrap' => false, |
| 288 | ) |
| 289 | ); |