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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 |
|---|---|
| 1266 | * Filters whether to show the admin bar. |
| 1267 | * |
| 1268 | * Returning false to this hook is the recommended way to hide the admin bar. |
| 1269 | * The user's display preference is used for logged in users. |
| 1270 | * |
| 1271 | * @since 3.1.0 |
| 1272 | * |
| 1273 | * @param bool $show_admin_bar Whether the admin bar should be shown. Default false. |
| 1274 | */ |
| 1275 | $show_admin_bar = apply_filters( 'show_admin_bar', $show_admin_bar ); |
| 1276 | |
| 1277 | return $show_admin_bar; |
| 1278 | } |
| 1279 | |
| 1280 | /** |
| 1281 | * Retrieves the admin bar display preference of a user. |
| 1282 | * |
| 1283 | * @since 3.1.0 |
| 1284 | * @access private |