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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 |
|---|---|
| 2314 | * |
| 2315 | * @since 3.6.0 |
| 2316 | * |
| 2317 | * @param string $html Audio shortcode HTML output. |
| 2318 | * @param array $atts Array of audio shortcode attributes. |
| 2319 | * @param string $audio Audio file. |
| 2320 | * @param int $post_id Post ID. |
| 2321 | * @param string $library Media library used for the audio shortcode. |
| 2322 | */ |
| 2323 | return apply_filters( 'wp_audio_shortcode', $html, $atts, $audio, $post_id, $library ); |
| 2324 | } |
| 2325 | add_shortcode( 'audio', 'wp_audio_shortcode' ); |
| 2326 | |
| 2327 | /** |
| 2328 | * Returns a filtered list of WP-supported video formats. |
| 2329 | * |
| 2330 | * @since 3.6.0 |
| 2331 | * |
| 2332 | * @return array List of supported video formats. |