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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 |
|---|---|
| 3942 | $current_screen->id = $typenow; |
| 3943 | $current_screen->post_type = $typenow; |
| 3944 | } elseif ( 'edit-tags' == $current_screen->id ) { |
| 3945 | if ( empty($taxnow) ) |
| 3946 | $taxnow = 'post_tag'; |
| 3947 | $current_screen->id = 'edit-' . $taxnow; |
| 3948 | $current_screen->taxonomy = $taxnow; |
| 3949 | } |
| 3950 | |
| 3951 | $current_screen = apply_filters('current_screen', $current_screen); |
| 3952 | } |
| 3953 | |
| 3954 | ?> |
| 3955 | |