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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 |
|---|---|
| 3022 | * |
| 3023 | * @since 1.5.1 |
| 3024 | */ |
| 3025 | function wp_footer() { |
| 3026 | /** |
| 3027 | * Prints scripts or data before the closing body tag on the front end. |
| 3028 | * |
| 3029 | * @since 1.5.1 |
| 3030 | */ |
| 3031 | do_action( 'wp_footer' ); |
| 3032 | } |
| 3033 | |
| 3034 | /** |
| 3035 | * Fire the wp_body_open action. |
| 3036 | * |
| 3037 | * See {@see 'wp_body_open'}. |
| 3038 | * |
| 3039 | * @since 5.2.0 |
| 3040 | */ |