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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 |
|---|---|
| 907 | $this->_screen_settings = ''; |
| 908 | break; |
| 909 | } |
| 910 | |
| 911 | $this->_screen_settings = apply_filters( 'screen_settings', $this->_screen_settings, $this ); |
| 912 | |
| 913 | if ( $this->_screen_settings || $this->_options ) |
| 914 | $show_screen = true; |
| 915 | |
| 916 | $this->_show_screen_options = apply_filters( 'screen_options_show_screen', $show_screen, $this ); |
| 917 | return $this->_show_screen_options; |
| 918 | } |
| 919 | |
| 920 | /** |
| 921 | * Render the screen options tab. |
| 922 | * |
| 923 | * @since 3.3.0 |
| 924 | */ |
| 925 | public function render_screen_options() { |