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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 |
|---|---|
| 2753 | * |
| 2754 | * @since 1.5.1 |
| 2755 | */ |
| 2756 | function wp_footer() { |
| 2757 | /** |
| 2758 | * Prints scripts or data before the closing body tag on the front end. |
| 2759 | * |
| 2760 | * @since 1.5.1 |
| 2761 | */ |
| 2762 | do_action( 'wp_footer' ); |
| 2763 | } |
| 2764 | |
| 2765 | /** |
| 2766 | * Fire the wp_body_open action. |
| 2767 | * |
| 2768 | * * See {@see 'wp_body_open'}. |
| 2769 | * |
| 2770 | * @since 5.2.0 |
| 2771 | */ |