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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 |
|---|---|
| 827 | } |
| 828 | |
| 829 | /** |
| 830 | * Return a filtered list of WP-supported audio formats |
| 831 | * |
| 832 | * @since 3.6.0 |
| 833 | * @return array |
| 834 | */ |
| 835 | function wp_get_audio_extensions() { |
| 836 | return apply_filters( 'wp_audio_extensions', array( 'mp3', 'ogg', 'wma', 'm4a', 'wav' ) ); |
| 837 | } |
| 838 | |
| 839 | /** |
| 840 | * The Audio shortcode. |
| 841 | * |
| 842 | * This implements the functionality of the Audio Shortcode for displaying |
| 843 | * WordPress mp3s in a post. |
| 844 | * |
| 845 | * @since 3.6.0 |