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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 |
---|---|
1025 | /** |
1026 | * Filters whether to show the Screen Options tab. |
1027 | * |
1028 | * @since 3.2.0 |
1029 | * |
1030 | * @param bool $show_screen Whether to show Screen Options tab. |
1031 | * Default true. |
1032 | * @param WP_Screen $screen Current WP_Screen instance. |
1033 | */ |
1034 | $this->_show_screen_options = apply_filters( 'screen_options_show_screen', $show_screen, $this ); |
1035 | return $this->_show_screen_options; |
1036 | } |
1037 |
|
1038 | /** |
1039 | * Renders the screen options tab. |
1040 | * |
1041 | * @since 3.3.0 |
1042 | * |
1043 | * @param array $options { |