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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 |
---|---|
924 | * Filter whether to show the admin bar. |
925 | * |
926 | * Returning false to this hook is the recommended way to hide the admin bar. |
927 | * The user's display preference is used for logged in users. |
928 | * |
929 | * @since 3.1.0 |
930 | * |
931 | * @param bool $show_admin_bar Whether the admin bar should be shown. Default false. |
932 | */ |
933 | $show_admin_bar = apply_filters( 'show_admin_bar', $show_admin_bar ); |
934 |
|
935 | return $show_admin_bar; |
936 | } |
937 |
|
938 | /** |
939 | * Retrieve the admin bar display preference of a user. |
940 | * |
941 | * @since 3.1.0 |
942 | * @access private |