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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 |
|---|---|
| 253 | |
| 254 | $current_screen->render_screen_meta(); |
| 255 | |
| 256 | if ( is_network_admin() ) { |
| 257 | /** |
| 258 | * Prints network admin screen notices. |
| 259 | * |
| 260 | * @since 3.1.0 |
| 261 | */ |
| 262 | do_action( 'network_admin_notices' ); |
| 263 | } elseif ( is_user_admin() ) { |
| 264 | /** |
| 265 | * Prints user admin screen notices. |
| 266 | * |
| 267 | * @since 3.1.0 |
| 268 | */ |
| 269 | do_action( 'user_admin_notices' ); |
| 270 | } else { |
| 271 | /** |