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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 |
|---|---|
| 1474 | * If the filtered output isn't empty, it will be used instead of generating the default audio template. |
| 1475 | * |
| 1476 | * @since 3.6.0 |
| 1477 | * |
| 1478 | * @param string $html Empty variable to be replaced with shortcode markup. |
| 1479 | * @param array $attr Attributes of the shortcode. @see wp_audio_shortcode() |
| 1480 | * @param string $content Shortcode content. |
| 1481 | * @param int $instances Unique numeric ID of this audio shortcode instance. |
| 1482 | */ |
| 1483 | $html = apply_filters( 'wp_audio_shortcode_override', '', $attr, $content, $instances ); |
| 1484 | if ( '' !== $html ) |
| 1485 | return $html; |
| 1486 | |
| 1487 | $audio = null; |
| 1488 | |
| 1489 | $default_types = wp_get_audio_extensions(); |
| 1490 | $defaults_atts = array( |
| 1491 | 'src' => '', |
| 1492 | 'loop' => '', |