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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 |
|---|---|
| 2886 | * |
| 2887 | * @since 1.5.1 |
| 2888 | */ |
| 2889 | function wp_footer() { |
| 2890 | /** |
| 2891 | * Prints scripts or data before the closing body tag on the front end. |
| 2892 | * |
| 2893 | * @since 1.5.1 |
| 2894 | */ |
| 2895 | do_action( 'wp_footer' ); |
| 2896 | } |
| 2897 | |
| 2898 | /** |
| 2899 | * Fire the wp_body_open action. |
| 2900 | * |
| 2901 | * * See {@see 'wp_body_open'}. |
| 2902 | * |
| 2903 | * @since 5.2.0 |
| 2904 | */ |