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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 |
---|---|
889 | * Filter whether to show the admin bar. |
890 | * |
891 | * Returning false to this hook is the recommended way to hide the admin bar. |
892 | * The user's display preference is used for logged in users. |
893 | * |
894 | * @since 3.1.0 |
895 | * |
896 | * @param bool $show_admin_bar Whether the admin bar should be shown. Default false. |
897 | */ |
898 | $show_admin_bar = apply_filters( 'show_admin_bar', $show_admin_bar ); |
899 |
|
900 | return $show_admin_bar; |
901 | } |
902 |
|
903 | /** |
904 | * Retrieve the admin bar display preference of a user. |
905 | * |
906 | * @since 3.1.0 |
907 | * @access private |