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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 |
|---|---|
| 378 | /** |
| 379 | * Filters the text displayed in the 'At a Glance' dashboard widget. |
| 380 | * |
| 381 | * Prior to 3.8.0, the widget was named 'Right Now'. |
| 382 | * |
| 383 | * @since 4.4.0 |
| 384 | * |
| 385 | * @param string $content Default text. |
| 386 | */ |
| 387 | $content = apply_filters( 'update_right_now_text', $content ); |
| 388 | |
| 389 | $msg .= sprintf( '<span id="wp-version">' . $content . '</span>', get_bloginfo( 'version', 'display' ), $theme_name ); |
| 390 | |
| 391 | echo "<p id='wp-version-message'>$msg</p>"; |
| 392 | } |
| 393 | |
| 394 | /** |
| 395 | * Retrieves plugins with updates available. |
| 396 | * |