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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 |
---|---|
826 | * Filter whether to show the admin bar. |
827 | * |
828 | * Returning false to this hook is the recommended way to hide the admin bar. |
829 | * The user's display preference is used for logged in users. |
830 | * |
831 | * @since 3.1.0 |
832 | * |
833 | * @param bool $show_admin_bar Whether the admin bar should be shown. Default false. |
834 | */ |
835 | $show_admin_bar = apply_filters( 'show_admin_bar', $show_admin_bar ); |
836 |
|
837 | return $show_admin_bar; |
838 | } |
839 |
|
840 | /** |
841 | * Retrieve the admin bar display preference of a user. |
842 | * |
843 | * @since 3.1.0 |
844 | * @access private |