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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 |
|---|---|
| 280 | /** |
| 281 | * Filters the text displayed in the 'At a Glance' dashboard widget. |
| 282 | * |
| 283 | * Prior to 3.8.0, the widget was named 'Right Now'. |
| 284 | * |
| 285 | * @since 4.4.0 |
| 286 | * |
| 287 | * @param string $content Default text. |
| 288 | */ |
| 289 | $content = apply_filters( 'update_right_now_text', $content ); |
| 290 | |
| 291 | $msg .= sprintf( '<span id="wp-version">' . $content . '</span>', get_bloginfo( 'version', 'display' ), $theme_name ); |
| 292 | |
| 293 | echo "<p id='wp-version-message'>$msg</p>"; |
| 294 | } |
| 295 | |
| 296 | /** |
| 297 | * @since 2.9.0 |
| 298 | * |